Botanical name
Allium giganteum
Other names
Giant allium
Genus
Species
A. giganteum - A. giganteum has spreading, strap-shaped basal leaves which die down before the flowers, and tall stems bearing round umbels of bright purple flowers in summer.
Foliage
Deciduous
Fragrance
Foliage has a nice fragrence
Habit
Erect
Awards
RHS AGM (Award of Garden Merit)
COLOUR
Flower
Purple in Summer
Foliage
Grey-green in Summer
HOW TO CARE
Watch out for
Pests
Pest free, may suffer from slugs on new growth.
Specific diseases
General care
Pruning
No pruning required.
Propagation methods
Division, Seed
WHERE TO GROW
Allium giganteum (Giant allium) will reach a height of 1.5m and a spread of 0.5m after 2-5 years.
Suggested uses
Architectural, Cottage/Informal, Flower Arranging, Beds and borders, Gravel
Cultivation
Grow in fertile, but well-drained soil. Add grit to clay soils to improve drainage.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East, West
Exposure
Sheltered