Artemisia Powis Castle - Powis Castle Artemisia
Regular price
$65.00
Size
Transform Your Garden with Silvery, Drought-Tolerant Beauty
Artemisia Powis Castle gives gardens instant silvery texture, strong border contrast, and low-water performance without demanding constant care.
This drought tolerant perennial is highly valued for fern like foliage that brightens dry gardens, rock gardens, containers, and mixed borders. Once established, powis castle artemisia thrives with minimal water, keeps a clean shrubby mound, and adds year-round interest through soft, aromatic foliage rather than showy perennial flowers.
Why You’ll Love Artemisia Powis Castle
-
Exceptional drought tolerance – Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and should be watered deeply but infrequently, allowing the soil to dry out slightly between watering sessions.
-
Striking silvery contrast – Artemisia ‘Powis Castle’ is a bushy sub-shrub known for its fernlike, silvery-white foliage, which provides a striking contrast in flower gardens.
-
Built for low-maintenance landscapes – ‘Powis Castle’ rarely produces flowers, maintaining its shape without splitting open.
-
Reliable perennial performance – Artemisia ‘Powis Castle’ typically grows in USDA hardiness zones 6-9, tolerating temperatures from -10°F to 30°F.
-
Naturally fragrant and resilient – The foliage of ‘Powis Castle’ emits a pleasant herbal fragrance when crushed, and it is naturally resistant to deer and pests due to the high essential oil content in its leaves.
Use it where you want foliage to do the work: along borders, beside ornamental grasses, as a silver ground cover effect, or in dry soil areas where many perennials struggle.
What Makes It Different
Most garden plants need frequent watering, richer soil, or regular deadheading to look good through summer. Powis castle is different: it delivers color, texture, and structure mainly through foliage, not bloom cycles.
Artemisia Powis Castle stands apart by offering:
-
Uncommon silver texture – Its finely divided, fern like foliage creates a soft, silvery look that few perennial flowers or foliage plants can match.
-
Clean seasonal habit – Because ‘Powis Castle’ rarely produces flowers, the foliage remains the main feature instead of collapsing or splitting open after bloom.
-
Award-winning garden performance – Artemisia ‘Powis Castle’ is a celebrated, award-winning garden hybrid named after Powis Castle and Garden in Wales, and the plant earned the Royal Horticultural Society Award of Garden Merit in 1993 for its outstanding performance.
-
Distinct hybrid background – The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium.
-
Proven history – In 1972, Artemisia ‘Powis Castle’ was formally introduced to the public, after gaining attention from its association with National Trust’s Powis Castle in Wales.
The result is a durable, deer resistant plant that is ideal for dry gardens, warm winter climates, and designs where structural color contrast is essential.
How to Grow It Successfully
-
Plant in excellent soil drainage Choose a full sun location with well drained soils. Artemisia ‘Powis Castle’ prefers full sun to partial shade, requiring at least 6-8 hours of direct sunlight daily for optimal growth, and may benefit from some afternoon shade in hot summer regions. Avoid wet soils, compact clay, and low areas where winter moisture collects.
-
Water deeply during establishment During the first season, water regularly but not constantly. After roots develop, reduce irrigation to a dry to medium schedule. This plant is drought-tolerant and thrives in dry to medium moisture levels, making it suitable for low-water gardens.
-
Prune in spring for a dense mound Prune in spring as new growth begins. Cutting back old growth helps maintain the compact, upright shrubby mound and prevents legginess. In colder zone 6 gardens, trim winter-damaged foliage back to about 6 inches, but avoid cutting hard into old woody stems.
Plant Details
-
Botanical name: Artemisia ‘Powis Castle’
-
Common names: Powis castle, powis castle artemisia, artemisia powis, powis castle wormwood
-
Plant type: Woody-based perennial / bushy sub-shrub in the Asteraceae family
-
Hybrid background: The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium
-
Mature size: The plant can reach 2 to 3 feet in height and spread from 3 to 6 feet wide
-
Hardiness: USDA zones 6-9; tolerates temperatures from -10°F to 30°F
-
Sun water needs: Full sun is best, with partial shade useful in hot summer regions; water deeply but infrequently once established
-
Soil needs: Artemisia ‘Powis Castle’ favors very airy, sandy soil that drains well, and it is recommended to use a well-draining succulent potting mix to prevent root rot
-
Moisture range: Best in dry to medium moisture; avoid wet soils and soggy winter conditions
-
Foliage: Finely divided, aromatic, silvery-white, fern like foliage with soft texture
-
Fragrance: Pleasant herbal scent when foliage is crushed
-
Flowers: Rare, small, yellowish flowers may appear in late summer to early fall, but the plant is grown primarily for foliage
-
Garden use: Artemisia ‘Powis Castle’ is widely used for adding structural color contrast to garden borders
-
Pest resistance: Naturally resistant to deer and pests due to essential oil content in the leaves
-
Awards: Royal Horticultural Society Award of Garden Merit, 1993
For containers, use a well drained succulent-style mix and never allow the pot to sit in standing water. A small amount of compost at planting is helpful, but overly rich or constantly moist soil can reduce the strong silvery color and increase rot risk.
Who It’s Perfect For
Ideal for:
-
California homeowners replacing thirsty plants with drought tolerant structure
-
Gardeners who want low-maintenance perennials with evergreen or semi-evergreen foliage in warm winter climates
-
Landscapers designing borders with ornamental grasses, lavender, salvias, dark foliage, or bold summer flowers
-
Container gardeners who want silvery texture without constant bloom cleanup
-
Dry garden and rock gardens where excellent soil drainage is already part of the design
If you want a water-wise garden with year-round interest, artemisia powis gives you soft foliage, strong contrast, and reliable spread without relying on high water use or heavy fertilizer, and it pairs beautifully with other drought-tolerant shrubs like California lilac (Ceanothus).
Frequently Asked Questions
How often should I water Artemisia Powis Castle?
Water deeply during the first growing season to help the plant establish. After that, water infrequently and allow the soil to dry slightly between sessions. Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and does not like wet soils.
When is the best time to plant this perennial?
Spring and fall are both good planting windows. In California and other warm winter climates, fall planting is especially useful because roots can establish before hot summer weather.
Does it need special soil or fertilizer?
It does not need rich soil. The essential requirement is excellent soil drainage. Use sandy, airy, well drained soil, or a succulent potting mix in containers. Compost can help at planting, but heavy feeding is unnecessary.
How do I prune it for best appearance?
Prune in spring as fresh growth begins. Cut back lightly to moderately to maintain a compact 2 3 tall mound, and remove winter-damaged foliage. Avoid cutting deeply into old woody growth because it may not regrow well.
Is it safe for pets and children?
Powis castle wormwood is best treated as an ornamental plant, not an edible herb. Its aromatic foliage contains essential oils, so keep pets and children from chewing the leaves and contact a veterinarian or medical professional if ingestion occurs.
What plants pair well with Artemisia Powis Castle?
Pair it with ornamental grasses, purple salvias, red perennial flowers, dark-leaved plants, lavender, rosemary, and other dry garden species. The silvery foliage makes surrounding colors look sharper while adding soft texture to borders.
Ready to Add Stunning Foliage to Your Garden?
Choose Artemisia Powis Castle for drought-tolerant beauty, silvery foliage, fragrant texture, and proven garden merit from the Royal Horticultural Society. Yardwork can help you choose the right placement, check soil drainage, and plan companion plants through expert advice, soil testing, and consultation options.
Transform Your Garden with Silvery, Drought-Tolerant Beauty
Artemisia Powis Castle gives gardens instant silvery texture, strong border contrast, and low-water performance without demanding constant care.
This drought tolerant perennial is highly valued for fern like foliage that brightens dry gardens, rock gardens, containers, and mixed borders. Once established, powis castle artemisia thrives with minimal water, keeps a clean shrubby mound, and adds year-round interest through soft, aromatic foliage rather than showy perennial flowers.
Why You’ll Love Artemisia Powis Castle
-
Exceptional drought tolerance – Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and should be watered deeply but infrequently, allowing the soil to dry out slightly between watering sessions.
-
Striking silvery contrast – Artemisia ‘Powis Castle’ is a bushy sub-shrub known for its fernlike, silvery-white foliage, which provides a striking contrast in flower gardens.
-
Built for low-maintenance landscapes – ‘Powis Castle’ rarely produces flowers, maintaining its shape without splitting open.
-
Reliable perennial performance – Artemisia ‘Powis Castle’ typically grows in USDA hardiness zones 6-9, tolerating temperatures from -10°F to 30°F.
-
Naturally fragrant and resilient – The foliage of ‘Powis Castle’ emits a pleasant herbal fragrance when crushed, and it is naturally resistant to deer and pests due to the high essential oil content in its leaves.
Use it where you want foliage to do the work: along borders, beside ornamental grasses, as a silver ground cover effect, or in dry soil areas where many perennials struggle.
What Makes It Different
Most garden plants need frequent watering, richer soil, or regular deadheading to look good through summer. Powis castle is different: it delivers color, texture, and structure mainly through foliage, not bloom cycles.
Artemisia Powis Castle stands apart by offering:
-
Uncommon silver texture – Its finely divided, fern like foliage creates a soft, silvery look that few perennial flowers or foliage plants can match.
-
Clean seasonal habit – Because ‘Powis Castle’ rarely produces flowers, the foliage remains the main feature instead of collapsing or splitting open after bloom.
-
Award-winning garden performance – Artemisia ‘Powis Castle’ is a celebrated, award-winning garden hybrid named after Powis Castle and Garden in Wales, and the plant earned the Royal Horticultural Society Award of Garden Merit in 1993 for its outstanding performance.
-
Distinct hybrid background – The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium.
-
Proven history – In 1972, Artemisia ‘Powis Castle’ was formally introduced to the public, after gaining attention from its association with National Trust’s Powis Castle in Wales.
The result is a durable, deer resistant plant that is ideal for dry gardens, warm winter climates, and designs where structural color contrast is essential.
How to Grow It Successfully
-
Plant in excellent soil drainage Choose a full sun location with well drained soils. Artemisia ‘Powis Castle’ prefers full sun to partial shade, requiring at least 6-8 hours of direct sunlight daily for optimal growth, and may benefit from some afternoon shade in hot summer regions. Avoid wet soils, compact clay, and low areas where winter moisture collects.
-
Water deeply during establishment During the first season, water regularly but not constantly. After roots develop, reduce irrigation to a dry to medium schedule. This plant is drought-tolerant and thrives in dry to medium moisture levels, making it suitable for low-water gardens.
-
Prune in spring for a dense mound Prune in spring as new growth begins. Cutting back old growth helps maintain the compact, upright shrubby mound and prevents legginess. In colder zone 6 gardens, trim winter-damaged foliage back to about 6 inches, but avoid cutting hard into old woody stems.
Plant Details
-
Botanical name: Artemisia ‘Powis Castle’
-
Common names: Powis castle, powis castle artemisia, artemisia powis, powis castle wormwood
-
Plant type: Woody-based perennial / bushy sub-shrub in the Asteraceae family
-
Hybrid background: The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium
-
Mature size: The plant can reach 2 to 3 feet in height and spread from 3 to 6 feet wide
-
Hardiness: USDA zones 6-9; tolerates temperatures from -10°F to 30°F
-
Sun water needs: Full sun is best, with partial shade useful in hot summer regions; water deeply but infrequently once established
-
Soil needs: Artemisia ‘Powis Castle’ favors very airy, sandy soil that drains well, and it is recommended to use a well-draining succulent potting mix to prevent root rot
-
Moisture range: Best in dry to medium moisture; avoid wet soils and soggy winter conditions
-
Foliage: Finely divided, aromatic, silvery-white, fern like foliage with soft texture
-
Fragrance: Pleasant herbal scent when foliage is crushed
-
Flowers: Rare, small, yellowish flowers may appear in late summer to early fall, but the plant is grown primarily for foliage
-
Garden use: Artemisia ‘Powis Castle’ is widely used for adding structural color contrast to garden borders
-
Pest resistance: Naturally resistant to deer and pests due to essential oil content in the leaves
-
Awards: Royal Horticultural Society Award of Garden Merit, 1993
For containers, use a well drained succulent-style mix and never allow the pot to sit in standing water. A small amount of compost at planting is helpful, but overly rich or constantly moist soil can reduce the strong silvery color and increase rot risk.
Who It’s Perfect For
Ideal for:
-
California homeowners replacing thirsty plants with drought tolerant structure
-
Gardeners who want low-maintenance perennials with evergreen or semi-evergreen foliage in warm winter climates
-
Landscapers designing borders with ornamental grasses, lavender, salvias, dark foliage, or bold summer flowers
-
Container gardeners who want silvery texture without constant bloom cleanup
-
Dry garden and rock gardens where excellent soil drainage is already part of the design
If you want a water-wise garden with year-round interest, artemisia powis gives you soft foliage, strong contrast, and reliable spread without relying on high water use or heavy fertilizer, and it pairs beautifully with other drought-tolerant shrubs like California lilac (Ceanothus).
Frequently Asked Questions
How often should I water Artemisia Powis Castle?
Water deeply during the first growing season to help the plant establish. After that, water infrequently and allow the soil to dry slightly between sessions. Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and does not like wet soils.
When is the best time to plant this perennial?
Spring and fall are both good planting windows. In California and other warm winter climates, fall planting is especially useful because roots can establish before hot summer weather.
Does it need special soil or fertilizer?
It does not need rich soil. The essential requirement is excellent soil drainage. Use sandy, airy, well drained soil, or a succulent potting mix in containers. Compost can help at planting, but heavy feeding is unnecessary.
How do I prune it for best appearance?
Prune in spring as fresh growth begins. Cut back lightly to moderately to maintain a compact 2 3 tall mound, and remove winter-damaged foliage. Avoid cutting deeply into old woody growth because it may not regrow well.
Is it safe for pets and children?
Powis castle wormwood is best treated as an ornamental plant, not an edible herb. Its aromatic foliage contains essential oils, so keep pets and children from chewing the leaves and contact a veterinarian or medical professional if ingestion occurs.
What plants pair well with Artemisia Powis Castle?
Pair it with ornamental grasses, purple salvias, red perennial flowers, dark-leaved plants, lavender, rosemary, and other dry garden species. The silvery foliage makes surrounding colors look sharper while adding soft texture to borders.
Ready to Add Stunning Foliage to Your Garden?
Choose Artemisia Powis Castle for drought-tolerant beauty, silvery foliage, fragrant texture, and proven garden merit from the Royal Horticultural Society. Yardwork can help you choose the right placement, check soil drainage, and plan companion plants through expert advice, soil testing, and consultation options.
Plants vary greatly by type and no guarantees are made on sizing.
However here is a rough idea of sizes based on containers that are direct from our growing grounds.
15 Gallon Shrub 3-4 Ft. Tall
15 Gallon Tree 5-6 Ft. Tall
24" Box Shrub 5-6 Ft. Tall
24" Box Tree 6-7 Ft. Tall
36" Box Tree 8-10 Ft. Tall
48" Box Tree 10-12 Ft. Tall
Please note: Citrus and California Native plants such as Manzanita are smaller than traditional sizing.
Please contact us to confirm sizing of items before purchasing if this is a concern.
Plants vary greatly by type and no guarantees are made on sizing.
However here is a rough idea of sizes based on containers that are direct from our growing grounds.
15 Gallon Shrub 3-4 Ft. Tall
15 Gallon Tree 5-6 Ft. Tall
24" Box Shrub 5-6 Ft. Tall
24" Box Tree 6-7 Ft. Tall
36" Box Tree 8-10 Ft. Tall
48" Box Tree 10-12 Ft. Tall
Please note: Citrus and California Native plants such as Manzanita are smaller than traditional sizing.
Please contact us to confirm sizing of items before purchasing if this is a concern.
Delivery does not include unloading of trees and plants larger than a 24" box.
Trees and plants in smaller containers will be dropped curbside.
Delivery beyond a curbside drop will be charged extra.
Trees and plants that are sold in container sizes larger than a 24" box size will require equipment and an operator onsite to help unload from the truck.
Please reach out to our team PRIOR to placing your order to coordinate.
Our team can provide unloading assistance with equipment for an extra fee.
Delivery does not include unloading of trees and plants larger than a 24" box.
Trees and plants in smaller containers will be dropped curbside.
Delivery beyond a curbside drop will be charged extra.
Trees and plants that are sold in container sizes larger than a 24" box size will require equipment and an operator onsite to help unload from the truck.
Please reach out to our team PRIOR to placing your order to coordinate.
Our team can provide unloading assistance with equipment for an extra fee.
You may also like...
Artemisia Powis Castle - Powis Castle Artemisia
Regular price
$65.00
Size
Transform Your Garden with Silvery, Drought-Tolerant Beauty
Artemisia Powis Castle gives gardens instant silvery texture, strong border contrast, and low-water performance without demanding constant care.
This drought tolerant perennial is highly valued for fern like foliage that brightens dry gardens, rock gardens, containers, and mixed borders. Once established, powis castle artemisia thrives with minimal water, keeps a clean shrubby mound, and adds year-round interest through soft, aromatic foliage rather than showy perennial flowers.
Why You’ll Love Artemisia Powis Castle
-
Exceptional drought tolerance – Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and should be watered deeply but infrequently, allowing the soil to dry out slightly between watering sessions.
-
Striking silvery contrast – Artemisia ‘Powis Castle’ is a bushy sub-shrub known for its fernlike, silvery-white foliage, which provides a striking contrast in flower gardens.
-
Built for low-maintenance landscapes – ‘Powis Castle’ rarely produces flowers, maintaining its shape without splitting open.
-
Reliable perennial performance – Artemisia ‘Powis Castle’ typically grows in USDA hardiness zones 6-9, tolerating temperatures from -10°F to 30°F.
-
Naturally fragrant and resilient – The foliage of ‘Powis Castle’ emits a pleasant herbal fragrance when crushed, and it is naturally resistant to deer and pests due to the high essential oil content in its leaves.
Use it where you want foliage to do the work: along borders, beside ornamental grasses, as a silver ground cover effect, or in dry soil areas where many perennials struggle.
What Makes It Different
Most garden plants need frequent watering, richer soil, or regular deadheading to look good through summer. Powis castle is different: it delivers color, texture, and structure mainly through foliage, not bloom cycles.
Artemisia Powis Castle stands apart by offering:
-
Uncommon silver texture – Its finely divided, fern like foliage creates a soft, silvery look that few perennial flowers or foliage plants can match.
-
Clean seasonal habit – Because ‘Powis Castle’ rarely produces flowers, the foliage remains the main feature instead of collapsing or splitting open after bloom.
-
Award-winning garden performance – Artemisia ‘Powis Castle’ is a celebrated, award-winning garden hybrid named after Powis Castle and Garden in Wales, and the plant earned the Royal Horticultural Society Award of Garden Merit in 1993 for its outstanding performance.
-
Distinct hybrid background – The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium.
-
Proven history – In 1972, Artemisia ‘Powis Castle’ was formally introduced to the public, after gaining attention from its association with National Trust’s Powis Castle in Wales.
The result is a durable, deer resistant plant that is ideal for dry gardens, warm winter climates, and designs where structural color contrast is essential.
How to Grow It Successfully
-
Plant in excellent soil drainage Choose a full sun location with well drained soils. Artemisia ‘Powis Castle’ prefers full sun to partial shade, requiring at least 6-8 hours of direct sunlight daily for optimal growth, and may benefit from some afternoon shade in hot summer regions. Avoid wet soils, compact clay, and low areas where winter moisture collects.
-
Water deeply during establishment During the first season, water regularly but not constantly. After roots develop, reduce irrigation to a dry to medium schedule. This plant is drought-tolerant and thrives in dry to medium moisture levels, making it suitable for low-water gardens.
-
Prune in spring for a dense mound Prune in spring as new growth begins. Cutting back old growth helps maintain the compact, upright shrubby mound and prevents legginess. In colder zone 6 gardens, trim winter-damaged foliage back to about 6 inches, but avoid cutting hard into old woody stems.
Plant Details
-
Botanical name: Artemisia ‘Powis Castle’
-
Common names: Powis castle, powis castle artemisia, artemisia powis, powis castle wormwood
-
Plant type: Woody-based perennial / bushy sub-shrub in the Asteraceae family
-
Hybrid background: The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium
-
Mature size: The plant can reach 2 to 3 feet in height and spread from 3 to 6 feet wide
-
Hardiness: USDA zones 6-9; tolerates temperatures from -10°F to 30°F
-
Sun water needs: Full sun is best, with partial shade useful in hot summer regions; water deeply but infrequently once established
-
Soil needs: Artemisia ‘Powis Castle’ favors very airy, sandy soil that drains well, and it is recommended to use a well-draining succulent potting mix to prevent root rot
-
Moisture range: Best in dry to medium moisture; avoid wet soils and soggy winter conditions
-
Foliage: Finely divided, aromatic, silvery-white, fern like foliage with soft texture
-
Fragrance: Pleasant herbal scent when foliage is crushed
-
Flowers: Rare, small, yellowish flowers may appear in late summer to early fall, but the plant is grown primarily for foliage
-
Garden use: Artemisia ‘Powis Castle’ is widely used for adding structural color contrast to garden borders
-
Pest resistance: Naturally resistant to deer and pests due to essential oil content in the leaves
-
Awards: Royal Horticultural Society Award of Garden Merit, 1993
For containers, use a well drained succulent-style mix and never allow the pot to sit in standing water. A small amount of compost at planting is helpful, but overly rich or constantly moist soil can reduce the strong silvery color and increase rot risk.
Who It’s Perfect For
Ideal for:
-
California homeowners replacing thirsty plants with drought tolerant structure
-
Gardeners who want low-maintenance perennials with evergreen or semi-evergreen foliage in warm winter climates
-
Landscapers designing borders with ornamental grasses, lavender, salvias, dark foliage, or bold summer flowers
-
Container gardeners who want silvery texture without constant bloom cleanup
-
Dry garden and rock gardens where excellent soil drainage is already part of the design
If you want a water-wise garden with year-round interest, artemisia powis gives you soft foliage, strong contrast, and reliable spread without relying on high water use or heavy fertilizer, and it pairs beautifully with other drought-tolerant shrubs like California lilac (Ceanothus).
Frequently Asked Questions
How often should I water Artemisia Powis Castle?
Water deeply during the first growing season to help the plant establish. After that, water infrequently and allow the soil to dry slightly between sessions. Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and does not like wet soils.
When is the best time to plant this perennial?
Spring and fall are both good planting windows. In California and other warm winter climates, fall planting is especially useful because roots can establish before hot summer weather.
Does it need special soil or fertilizer?
It does not need rich soil. The essential requirement is excellent soil drainage. Use sandy, airy, well drained soil, or a succulent potting mix in containers. Compost can help at planting, but heavy feeding is unnecessary.
How do I prune it for best appearance?
Prune in spring as fresh growth begins. Cut back lightly to moderately to maintain a compact 2 3 tall mound, and remove winter-damaged foliage. Avoid cutting deeply into old woody growth because it may not regrow well.
Is it safe for pets and children?
Powis castle wormwood is best treated as an ornamental plant, not an edible herb. Its aromatic foliage contains essential oils, so keep pets and children from chewing the leaves and contact a veterinarian or medical professional if ingestion occurs.
What plants pair well with Artemisia Powis Castle?
Pair it with ornamental grasses, purple salvias, red perennial flowers, dark-leaved plants, lavender, rosemary, and other dry garden species. The silvery foliage makes surrounding colors look sharper while adding soft texture to borders.
Ready to Add Stunning Foliage to Your Garden?
Choose Artemisia Powis Castle for drought-tolerant beauty, silvery foliage, fragrant texture, and proven garden merit from the Royal Horticultural Society. Yardwork can help you choose the right placement, check soil drainage, and plan companion plants through expert advice, soil testing, and consultation options.
Transform Your Garden with Silvery, Drought-Tolerant Beauty
Artemisia Powis Castle gives gardens instant silvery texture, strong border contrast, and low-water performance without demanding constant care.
This drought tolerant perennial is highly valued for fern like foliage that brightens dry gardens, rock gardens, containers, and mixed borders. Once established, powis castle artemisia thrives with minimal water, keeps a clean shrubby mound, and adds year-round interest through soft, aromatic foliage rather than showy perennial flowers.
Why You’ll Love Artemisia Powis Castle
-
Exceptional drought tolerance – Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and should be watered deeply but infrequently, allowing the soil to dry out slightly between watering sessions.
-
Striking silvery contrast – Artemisia ‘Powis Castle’ is a bushy sub-shrub known for its fernlike, silvery-white foliage, which provides a striking contrast in flower gardens.
-
Built for low-maintenance landscapes – ‘Powis Castle’ rarely produces flowers, maintaining its shape without splitting open.
-
Reliable perennial performance – Artemisia ‘Powis Castle’ typically grows in USDA hardiness zones 6-9, tolerating temperatures from -10°F to 30°F.
-
Naturally fragrant and resilient – The foliage of ‘Powis Castle’ emits a pleasant herbal fragrance when crushed, and it is naturally resistant to deer and pests due to the high essential oil content in its leaves.
Use it where you want foliage to do the work: along borders, beside ornamental grasses, as a silver ground cover effect, or in dry soil areas where many perennials struggle.
What Makes It Different
Most garden plants need frequent watering, richer soil, or regular deadheading to look good through summer. Powis castle is different: it delivers color, texture, and structure mainly through foliage, not bloom cycles.
Artemisia Powis Castle stands apart by offering:
-
Uncommon silver texture – Its finely divided, fern like foliage creates a soft, silvery look that few perennial flowers or foliage plants can match.
-
Clean seasonal habit – Because ‘Powis Castle’ rarely produces flowers, the foliage remains the main feature instead of collapsing or splitting open after bloom.
-
Award-winning garden performance – Artemisia ‘Powis Castle’ is a celebrated, award-winning garden hybrid named after Powis Castle and Garden in Wales, and the plant earned the Royal Horticultural Society Award of Garden Merit in 1993 for its outstanding performance.
-
Distinct hybrid background – The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium.
-
Proven history – In 1972, Artemisia ‘Powis Castle’ was formally introduced to the public, after gaining attention from its association with National Trust’s Powis Castle in Wales.
The result is a durable, deer resistant plant that is ideal for dry gardens, warm winter climates, and designs where structural color contrast is essential.
How to Grow It Successfully
-
Plant in excellent soil drainage Choose a full sun location with well drained soils. Artemisia ‘Powis Castle’ prefers full sun to partial shade, requiring at least 6-8 hours of direct sunlight daily for optimal growth, and may benefit from some afternoon shade in hot summer regions. Avoid wet soils, compact clay, and low areas where winter moisture collects.
-
Water deeply during establishment During the first season, water regularly but not constantly. After roots develop, reduce irrigation to a dry to medium schedule. This plant is drought-tolerant and thrives in dry to medium moisture levels, making it suitable for low-water gardens.
-
Prune in spring for a dense mound Prune in spring as new growth begins. Cutting back old growth helps maintain the compact, upright shrubby mound and prevents legginess. In colder zone 6 gardens, trim winter-damaged foliage back to about 6 inches, but avoid cutting hard into old woody stems.
Plant Details
-
Botanical name: Artemisia ‘Powis Castle’
-
Common names: Powis castle, powis castle artemisia, artemisia powis, powis castle wormwood
-
Plant type: Woody-based perennial / bushy sub-shrub in the Asteraceae family
-
Hybrid background: The plant is believed to be a natural cross between Artemisia arborescens and Artemisia absinthium
-
Mature size: The plant can reach 2 to 3 feet in height and spread from 3 to 6 feet wide
-
Hardiness: USDA zones 6-9; tolerates temperatures from -10°F to 30°F
-
Sun water needs: Full sun is best, with partial shade useful in hot summer regions; water deeply but infrequently once established
-
Soil needs: Artemisia ‘Powis Castle’ favors very airy, sandy soil that drains well, and it is recommended to use a well-draining succulent potting mix to prevent root rot
-
Moisture range: Best in dry to medium moisture; avoid wet soils and soggy winter conditions
-
Foliage: Finely divided, aromatic, silvery-white, fern like foliage with soft texture
-
Fragrance: Pleasant herbal scent when foliage is crushed
-
Flowers: Rare, small, yellowish flowers may appear in late summer to early fall, but the plant is grown primarily for foliage
-
Garden use: Artemisia ‘Powis Castle’ is widely used for adding structural color contrast to garden borders
-
Pest resistance: Naturally resistant to deer and pests due to essential oil content in the leaves
-
Awards: Royal Horticultural Society Award of Garden Merit, 1993
For containers, use a well drained succulent-style mix and never allow the pot to sit in standing water. A small amount of compost at planting is helpful, but overly rich or constantly moist soil can reduce the strong silvery color and increase rot risk.
Who It’s Perfect For
Ideal for:
-
California homeowners replacing thirsty plants with drought tolerant structure
-
Gardeners who want low-maintenance perennials with evergreen or semi-evergreen foliage in warm winter climates
-
Landscapers designing borders with ornamental grasses, lavender, salvias, dark foliage, or bold summer flowers
-
Container gardeners who want silvery texture without constant bloom cleanup
-
Dry garden and rock gardens where excellent soil drainage is already part of the design
If you want a water-wise garden with year-round interest, artemisia powis gives you soft foliage, strong contrast, and reliable spread without relying on high water use or heavy fertilizer, and it pairs beautifully with other drought-tolerant shrubs like California lilac (Ceanothus).
Frequently Asked Questions
How often should I water Artemisia Powis Castle?
Water deeply during the first growing season to help the plant establish. After that, water infrequently and allow the soil to dry slightly between sessions. Artemisia ‘Powis Castle’ thrives in dry to medium moisture levels and does not like wet soils.
When is the best time to plant this perennial?
Spring and fall are both good planting windows. In California and other warm winter climates, fall planting is especially useful because roots can establish before hot summer weather.
Does it need special soil or fertilizer?
It does not need rich soil. The essential requirement is excellent soil drainage. Use sandy, airy, well drained soil, or a succulent potting mix in containers. Compost can help at planting, but heavy feeding is unnecessary.
How do I prune it for best appearance?
Prune in spring as fresh growth begins. Cut back lightly to moderately to maintain a compact 2 3 tall mound, and remove winter-damaged foliage. Avoid cutting deeply into old woody growth because it may not regrow well.
Is it safe for pets and children?
Powis castle wormwood is best treated as an ornamental plant, not an edible herb. Its aromatic foliage contains essential oils, so keep pets and children from chewing the leaves and contact a veterinarian or medical professional if ingestion occurs.
What plants pair well with Artemisia Powis Castle?
Pair it with ornamental grasses, purple salvias, red perennial flowers, dark-leaved plants, lavender, rosemary, and other dry garden species. The silvery foliage makes surrounding colors look sharper while adding soft texture to borders.
Ready to Add Stunning Foliage to Your Garden?
Choose Artemisia Powis Castle for drought-tolerant beauty, silvery foliage, fragrant texture, and proven garden merit from the Royal Horticultural Society. Yardwork can help you choose the right placement, check soil drainage, and plan companion plants through expert advice, soil testing, and consultation options.
Plants vary greatly by type and no guarantees are made on sizing.
However here is a rough idea of sizes based on containers that are direct from our growing grounds.
15 Gallon Shrub 3-4 Ft. Tall
15 Gallon Tree 5-6 Ft. Tall
24" Box Shrub 5-6 Ft. Tall
24" Box Tree 6-7 Ft. Tall
36" Box Tree 8-10 Ft. Tall
48" Box Tree 10-12 Ft. Tall
Please note: Citrus and California Native plants such as Manzanita are smaller than traditional sizing.
Please contact us to confirm sizing of items before purchasing if this is a concern.
Plants vary greatly by type and no guarantees are made on sizing.
However here is a rough idea of sizes based on containers that are direct from our growing grounds.
15 Gallon Shrub 3-4 Ft. Tall
15 Gallon Tree 5-6 Ft. Tall
24" Box Shrub 5-6 Ft. Tall
24" Box Tree 6-7 Ft. Tall
36" Box Tree 8-10 Ft. Tall
48" Box Tree 10-12 Ft. Tall
Please note: Citrus and California Native plants such as Manzanita are smaller than traditional sizing.
Please contact us to confirm sizing of items before purchasing if this is a concern.
Delivery does not include unloading of trees and plants larger than a 24" box.
Trees and plants in smaller containers will be dropped curbside.
Delivery beyond a curbside drop will be charged extra.
Trees and plants that are sold in container sizes larger than a 24" box size will require equipment and an operator onsite to help unload from the truck.
Please reach out to our team PRIOR to placing your order to coordinate.
Our team can provide unloading assistance with equipment for an extra fee.
Delivery does not include unloading of trees and plants larger than a 24" box.
Trees and plants in smaller containers will be dropped curbside.
Delivery beyond a curbside drop will be charged extra.
Trees and plants that are sold in container sizes larger than a 24" box size will require equipment and an operator onsite to help unload from the truck.
Please reach out to our team PRIOR to placing your order to coordinate.
Our team can provide unloading assistance with equipment for an extra fee.
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Thousands of Healthy Plants Delivered
Yardwork was so great to work with. First they had the Swan Hill olive trees that we had been searching for, we had contacted several other nurseries without any luck previously. Then they answered all of our questions in a timely matter prior to ordering and finally delivered within a few days of placing it. Their staff is incredibly knowledgeable; they delivered and planted our trees with expertise to ensure that they would do well in our yard. We would definitely work with them again for future projects.
A Modern Experience
At Yardwork, we carefully curate thousands of plants, in all container sizes, to provide you with the best selection of the highest quality trees and plants at the best price, with the convenience of an online platform.
Uncompromised Quality
We choose only the finest specimens and hand select our plants just before delivery to ensure you receive the freshest and most robust specimens available for your landscape.
Industry Leading Warranties
Our 30, 90, and 365 extended warranties provide some of the best coverage to ensure our trees and plants thrive in your landscape.
Frequently Asked Questions
We're committed to changing everything about trees and plants - how they’re grown, how you shop for them, and how much they cost. We handle orders ourselves. No middlemen to get between us (or our prices) and you.
We're committed to changing everything about trees and plants - how they’re grown, how you shop for them, and how much they cost. We handle orders ourselves. No middlemen to get between us (or our prices) and you.
Delivery does not include unloading of trees and plants LARGER than a 24" box.
Trees and plants in smaller containers will be dropped curbside (usually on the driveway or near the front doorstep).
Delivery beyond a curbside drop will be charged extra.
Trees and plants that are sold in container sizes LARGER than a 24" box size will require equipment and/or enough manpower onsite to help unload from the truck.
Please reach out to our team PRIOR to placing your order to help coordinate.
Our team can provide unloading assistance with equipment for an extra fee as well.
Delivery does not include unloading of trees and plants LARGER than a 24" box.
Trees and plants in smaller containers will be dropped curbside (usually on the driveway or near the front doorstep).
Delivery beyond a curbside drop will be charged extra.
Trees and plants that are sold in container sizes LARGER than a 24" box size will require equipment and/or enough manpower onsite to help unload from the truck.
Please reach out to our team PRIOR to placing your order to help coordinate.
Our team can provide unloading assistance with equipment for an extra fee as well.
We ship locally within California within 7-10 days of your order being placed.
We ship nationally using carrier partners, based on order size. Our common order minimums for out of state shipping is $5,000.
Text or call 323-576-4159 for specific shipping details for your location.
We ship locally within California within 7-10 days of your order being placed.
We ship nationally using carrier partners, based on order size. Our common order minimums for out of state shipping is $5,000.
Text or call 323-576-4159 for specific shipping details for your location.
We are currently online only and don't have physical locations where you can view plants in person.
That's why we have photos direct from the growing grounds of the plants we will ship and we display pricing right in our store.
We do make sure to pick the very best trees and plants prior to shipping and make sure that they have gone through our multi-point inspection for health and structure.
We will always reach out prior to delivery if we find a quality issue or need to provide a substitute.
We are currently online only and don't have physical locations where you can view plants in person.
That's why we have photos direct from the growing grounds of the plants we will ship and we display pricing right in our store.
We do make sure to pick the very best trees and plants prior to shipping and make sure that they have gone through our multi-point inspection for health and structure.
We will always reach out prior to delivery if we find a quality issue or need to provide a substitute.
Plants vary greatly by type. Here is a rough idea of sizes based on containers that are direct from our growing grounds.
15 Gallon Shrub 3-4 Ft. Tall
15 Gallon Tree 5-6 Ft. Tall
24" Box Shrub 5-6 Ft. Tall
24" Box Tree 6-7 Ft. Tall
36" Box Shrub/Tree 7-9 Ft. Tall
48" Box Shrub/Tree 8-10 Ft. Tall
**Please note that we do not make guarantees of sizes. If you have questions or concerns, please call or text to request accurate sizing for the particular plant you're considering, prior to ordering.
Plants vary greatly by type. Here is a rough idea of sizes based on containers that are direct from our growing grounds.
15 Gallon Shrub 3-4 Ft. Tall
15 Gallon Tree 5-6 Ft. Tall
24" Box Shrub 5-6 Ft. Tall
24" Box Tree 6-7 Ft. Tall
36" Box Shrub/Tree 7-9 Ft. Tall
48" Box Shrub/Tree 8-10 Ft. Tall
**Please note that we do not make guarantees of sizes. If you have questions or concerns, please call or text to request accurate sizing for the particular plant you're considering, prior to ordering.
We offer a limited 30 day warranty for plants that are delivered and planted by someone else and a 90 day warranty for plants that we plant.
The limited warranty covers plants that die as a result of disease or fungus which was derived from our growing grounds or from root balls that were root bound.
The warranty does not cover damage due to watering, fertilizer, soils, or any other conditions beyond our control. Additionally, the warranty does not cover plants that are shipped out of the state of California or shipped into California from other states. Custom plant orders are also not covered under warranty. Plants must be planted within 24 hours after delivery to qualify.
We can assist you in recommending the right soils and fertilizers to help your plant thrive after you plant it.
Text or call 323-576-4159 for further warranty information.
We offer a limited 30 day warranty for plants that are delivered and planted by someone else and a 90 day warranty for plants that we plant.
The limited warranty covers plants that die as a result of disease or fungus which was derived from our growing grounds or from root balls that were root bound.
The warranty does not cover damage due to watering, fertilizer, soils, or any other conditions beyond our control. Additionally, the warranty does not cover plants that are shipped out of the state of California or shipped into California from other states. Custom plant orders are also not covered under warranty. Plants must be planted within 24 hours after delivery to qualify.
We can assist you in recommending the right soils and fertilizers to help your plant thrive after you plant it.
Text or call 323-576-4159 for further warranty information.
Our local delivery team covers most cities in California.
There are some exceptions, so please get in touch to confirm prior to ordering.
Additionally, we ship using semi trucks and trailers throughout the entire United States and even abroad for large orders over $5,000. Each shipment is custom, so please reach out to our team to coordinate.
Our local delivery team covers most cities in California.
There are some exceptions, so please get in touch to confirm prior to ordering.
Additionally, we ship using semi trucks and trailers throughout the entire United States and even abroad for large orders over $5,000. Each shipment is custom, so please reach out to our team to coordinate.