| Plant Habit: | Shrub |
| Life cycle: | Perennial |
| Sun Requirements: | Full Sun to Partial Shade |
| Water Preferences: | Mesic |
| Soil pH Preferences: | Moderately acid (5.6 – 6.0) Slightly acid (6.1 – 6.5) |
| Minimum cold hardiness: | Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F) |
| Maximum recommended zone: | Zone 7b |
| Plant Height: | 5 to 8 feet |
| Plant Spread: | 3 to 4 feet |
| Leaves: | Evergreen Broadleaf |
| Fruit: | Other: 'Castle Wall' is a male variety and does not produce fruit but will pollinate 'Castle Spire' and 'Castle Gold' |
| Flowers: | Showy |
| Flower Color: | White |
| Bloom Size: | Under 1" |
| Flower Time: | Late winter or early spring Spring Late spring or early summer |
| Underground structures: | Taproot |
| Uses: | Windbreak or Hedge Provides winter interest Cut Flower |
| Resistances: | Deer Resistant |
| Miscellaneous: | Dioecious Patent/Plant Breeders' Rights: USPP 14,308 Can. Can.: 2315 |
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