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Iberis sempervirens 'Alexander's White'
Common Name: Alexander's White Candytuft
Iberis sempervirens ‘Alexander’s White’ is a compact evergreen perennial prized for its abundant pure white flower clusters that blanket the plant in spring. This candytuft forms a dense low mound of glossy dark green foliage that remains attractive year-round, with blooms often covering nearly the entire plant during peak flowering. Its crisp white flowers provide strong contrast in early-season plantings.
Type: Evergreen perennial
Mature Size: Width: 12–18 in · Height: 8–10 in
USDA Zones: 3a–8b
Form: Low, mounded, spreading
Light: Full sun
Soil: Well-drained soil; prefers average to lean soils
Water: Low to medium; drought tolerant once established
Wildlife: Attracts bees and butterflies
Features & Landscape Uses:
Excellent for edging, rock gardens, borders, slopes, and wall edges where early spring white bloom and evergreen foliage provide long-lasting structure. It performs especially well cascading over stone edges.
Care:
Plant in full sun with sharp drainage. Shear lightly after flowering to maintain compact form and encourage dense growth. Avoid poorly drained winter soils for best longevity.
| Plant Type: | Perennial |
| Width: | 12-18" |
| Height: | 8-10" |
| Fragrant: | Yes |
| Fruit: | Not verified |
| Growth Rate | Fast |
| Zone: | 3–8 |
| Deer Resistant: | Yes |
| Salt Tolerant: | Yes |
| Drought Tolerant: | No |
| Attract: | Butterflies |
| Exposure: | Full Sun |
| Bloom Time: | Late Spring, Early Summer, Spring |
| Landscape/Use: | Container, Mass Planting, Accent Plant, Border |
| Shape: | Spreading, Low Mounding |
| Soil Type | Well Drained, Average |
| Flower Color: | White |
| Leaf Color: | Dark Green |
| Fall Color: | Dark Green |