Wormwood
Artemisia 'Powis Castle'
Climate Match for your location
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A compact artemisia shrub prized for its finely divided, silvery-gray foliage that creates an airy, delicate texture in the garden. Produces small yellow flowers in late summer and requires minimal water and maintenance once established.
Why grow it
Artemisia 'Powis Castle' offers finer, more consistently silvery foliage than many Artemisia species, making it useful for creating textural contrast in drought-tolerant plantings. Its compact, mounding habit suits smaller gardens and containers better than taller artemisia varieties, while requiring comparable water efficiency once established. The late-summer yellow flowers provide seasonal interest without demanding deadheading.
Watch out for
In humid climates or poorly drained soils, this cultivar is prone to root rot and fungal issues; ensure sharp drainage and avoid overhead watering. It may become straggly or woody over time and benefits from occasional hard pruning in early spring to maintain shape, though severe pruning can damage the plant. In very cold zones, winter hardiness may be marginal and mulch can worsen conditions by trapping moisture around the base.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Asteraceae
Native Range
Garden hybrid (parents from temperate regions)
Seasonality
Bloom Season
Season of Interest
Shrub
Woody multi-stem plants at eye level.
Succession Role
Tolerances & Soil
pH Range
Establishment & Care
- Establishment
- Maintenance
- Propagation
A compact artemisia shrub prized for its finely divided, silvery-gray foliage that creates an airy, delicate texture in the garden. Produces small yellow flowers in late summer and requires minimal water and maintenance once established.
Climate Match for your location
See how well Wormwood grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Artemisia 'Powis Castle' offers finer, more consistently silvery foliage than many Artemisia species, making it useful for creating textural contrast in drought-tolerant plantings. Its compact, mounding habit suits smaller gardens and containers better than taller artemisia varieties, while requiring comparable water efficiency once established. The late-summer yellow flowers provide seasonal interest without demanding deadheading.
Watch out for
In humid climates or poorly drained soils, this cultivar is prone to root rot and fungal issues; ensure sharp drainage and avoid overhead watering. It may become straggly or woody over time and benefits from occasional hard pruning in early spring to maintain shape, though severe pruning can damage the plant. In very cold zones, winter hardiness may be marginal and mulch can worsen conditions by trapping moisture around the base.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Asteraceae
Native Range
Garden hybrid (parents from temperate regions)
Seasonality
Bloom Season
Season of Interest
Shrub
Woody multi-stem plants at eye level.
Succession Role
Tolerances & Soil
pH Range
Establishment & Care
- Establishment
- Maintenance
- Propagation
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