Ozark Bluestar
Amsonia illustris
Ozark Bluestar is a perennial for mid-border, suited to full sun to partial shade and clay or loam, flowering Aug, Sep, Oct.
| Type | Perennial |
|---|---|
| Mature height | 90 cm |
| Spread | 90 cm |
| Aspect | full sun to partial shade |
| Foliage | Deciduous |
| Hardiness | USDA 5a-9b, RHS H6 |
| Pollinator-friendly | Yes |
| Pet-safe | No |
Where to use it in a border
At around 90 cm, it sits best through the middle of a border, between taller structure behind and edging in front. Give it about 90 cm of room to spread. It is hardy across USDA zones 5a to 9b and rated H6 by the RHS, so check it suits your area before planting.
It appears in our lists of full sun, clay soil, pollinator-friendly plants.
Border Builder uses Ozark Bluestar'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:
- African Iristo flower when it does not
- Allegheny Monkeyflowerto edge in front
- Allium 'Purple Sensation'to flower when it does not
- American Beautyberryfor height behind it
- American Cranberrybush 'Redwing'for height behind it
- American Elderberry 'Adams'for height behind it
Garden styles
Sources
Bloom timing and hardiness drawn from: