Onion. A bulbous perennial with mid-green leaves, which die back before flowering. Dense umbels of star-shaped, bright blue flowers on stiff stems. Max Height 80cm. Max Spread 15cm. Full sun. Hardy. Plant in hole large enough to avoid disturbing root ball.
Allium caeruleum
A bulbous perennial with mid-green leaves, which die back before flowering. Dense umbels of star-shaped, bright blue flowers on stiff stems.
Additional information
| Generic | Allium |
|---|---|
| Species | caeruleum |
| Varietry | |
| Common Name | Onion |
| Flower Colour | blue |
| Soil | Fertile |
| Aspect | Full sun |
| Foliage | Deciduous |
| Height | 80cm |
| Family | Liliaceae |
| Spread | 15cm |
| Growth Speed | |
| Growth Habit | Upright |
| Fragrance | FALSE |
| Foliage Colour | green |
| Flowers From | |
| Colour Fruit | |
| Fruits When | |
| Moisture | Well drained |
| Protection | |
| Hardiness | Hardy |
| Planting | Plant in hole large enough to avoid disturbing root ball |
| Care | |
| Border | Border |
| Toxicity | |
| Pruning | |
| Pruning Time | |
| Pests and diseases | |
| Maintenance | |
| Propagation |
Related products
Allium carinatum ssp. pulchellum f. album
A bulbous perennial with evergreen mid-green leaves. Loose umbels of bell-shaped, white flowers on stiff stems. Spreads rapidly.
Allium sikkimense
A slender bulbous perennial, mid-green leaves. Bears nodding umbels of bell-shaped bright blue flowers.
Allium hollandicum ‘Purple Sensation’
A bulbous perennial with strap-shaped leaves. Dense umbels of star-shaped, violet-purple flowers.
Allium cepa Proliferum Group
An unusual bulbous perennial which bears small bulbs at the top of the flower stem.
Allium fistulosum
A non-bulbous hardy perennial. Pencil thick shoots grow together in tufts or clumps.
Allium cristophii
A bulbous perennial with grey-green leaves. Large umbels of star-shaped, pink-purple flowers on stiff stems. Leaves die down before flowers.
Allium senescens ssp. montanum var. glaucum
A bulbous perennial with grey twisted leaves. Bears dense umbels, cup-shaped bright pink flowers.
Allium moly
A bulbous perennial grey-green leaves Dense umbels of star-shaped bright golden yellow flowers.