Artemisia (Wormwood) 'Powis Castle'
A superb evergreen shrub prized for its elegant, silvery-grey foliage that adds year-round interest and texture to the garden. Its finely divided, aromatic leaves form a beautiful, mounding habit that works perfectly as a structural plant in borders, gravel gardens, or as low hedging. Exceptionally drought-tolerant and low-maintenance, it thrives in full sun and poor, well-drained soils, making it ideal for challenging, dry spots. The foliage provides a stunning contrast when paired with vibrant flowering plants or dark-leaved shrubs. Hardy and deer-resistant, it's a trouble-free choice for adding sophisticated silver tones to both formal and informal garden designs.
Family of Trees: Asteraceae
Habit: Evergreen subshrub
Growth Rate: Moderate
Optimal Temperature: 15-25°C, hardy to -15°C
Harmful if Eaten?: Toxic in large quantities
Flowers or Berries: Insignificant yellow flowers
Hardiness: H5 (Hardy in most UK winters)
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
- ○ H1a: under glass all year (>15C)
- ○ H1b: can be grown outside in the summer (10 - 15)
- ○ H1c: can be grown outside in the summer (5 - 10)
- ○ H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
- ○ H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
- ○ H4: hardy through most of the UK (-10 to -5)
- ○ H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
- ○ H6: hardy in all of UK and northern Europe (-20 to -15)
- ○ H7: hardy in the severest European continental climates (< -20)
| Spring | Summer | Autumn | Winter | |
|---|---|---|---|---|
| Leaves | ||||
| Flowers | ||||
| Berries |
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Autumn
Winter
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