This new form is noted for its profusion of flower spikes, which top the bushy, semi-evergreen mound of grey-green palmate foliage from early to midsummer. A delightful mound-forming flowering shrub, it flourishes in sunny spots with well-drained soils, so will make a stylish addition to coastal and gravel gardens as well as cottage style planting schemes, or those with a more unstructured feel.
How to care for Lupinus arboreus Lavender Spires:
Deadhead regularly to encourage more flowers to form and after flowering has finished, cut back the plant by around 3/4 to encourage a flush of bushy new growth. Frost hardy, it may not survive cold winters where the temperature drops below -5°C.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
2m
Eventual spread:
1m
Rate of growth:
Fast-growing
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Borderline hardy (will need protection in winter in colder areas)
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This shrub is semi-evergreen, so it can lose some of its leaves in winter. In colder regions or more exposed gardens, it may lose them all, but then fresh new foliage appears again in spring.
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Pets: TOXIC if eaten; Humans: Harmful if eaten