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 senescens ssp. montanum var. glaucum
A bulbous perennial with grey twisted leaves. Bears dense umbels, cup-shaped bright pink flowers.
Allium giganteum
A bulbous perennial with strap-shaped leaves. Dense ball of star-shaped, lilac-pink flowers.
Allium cyaneum
A bulbous perennial with dark-green thread-like leaves. Small umbels of bell-shaped, blue flowers on stiff stems.
Allium cernuum
A bulbous perennial with dark-green leaves. Pendent umbels of bell-shaped, pink flowers on stiff stems.
Allium senescens
A bulbous perennial, mid-green leaves. Bears dense umbels, cup-shaped pale pink-purple flowers.
Allium moly
A bulbous perennial grey-green leaves Dense umbels of star-shaped bright golden yellow flowers.
Allium rosenbachianum
A bulbous perennial, glaucous-green leaves. Bears umbels, star-shaped deep purple flowers with violet stamens.
Allium schubertii
A bulbous perennial, bright-green leaves, that die back before flowering. Bears umbels, star-shaped pale purple flowers.