Ornamental Onion 'Millenium'
Allium 'Millenium'
Ornamental Onion 'Millenium' is a perennial for edging, mid-border, suited to full sun and loam or sandy soil, flowering Jul, Aug.
| Type | Perennial |
|---|---|
| Mature height | 40 cm |
| Spread | 45 cm |
| Aspect | full sun |
| Foliage | Deciduous |
| Hardiness | USDA 4a-8b |
| Pollinator-friendly | Yes |
| Pet-safe | No |
Where to use it in a border
At around 40 cm, it sits best along the front edge, where a low, spreading habit reads best. Give it about 45 cm of room to spread, roughly 2 to the metre when planted in a drift. It is hardy across USDA zones 4a to 8b, so check it suits your area before planting.
It appears in our lists of full sun, sandy soil, pollinator-friendly plants.
Border Builder uses Ornamental Onion 'Millenium''s height, spread, soil, bloom months and companions to place it in a full border plan for your own conditions, on iPhone and iPad.
Flowering through the year
Worth knowing
- Not recorded as pet-safe; site it away from pets that graze if that matters to you.
- Its flowers are valued by bees and other pollinators.
Good companions
Plants that share its conditions and style, chosen to complement its place in the border:
- Autumn Sage 'Hot Lips'to flower when it does not
- Black Huckleberryto edge in front
- Creeping Thyme 'Coccineus'to edge in front
- Cuphea 'Vermillionaire'to flower when it does not
- Darcy Sagefor height behind it
- Desert Bluebellsto edge in front
Garden styles
Formal Foundation planting Wildlife garden Xeriscape (low-water)
Sources
Bloom timing and hardiness drawn from: