Amsonia hubrichtii
Arkansas bluestar
A clump-forming perennial with upright stems clothed in narrow, needle-like leaves, bright green in spring and summer, golden yellow in autumn. Terminal clusters of dark blue buds open to light, greyish-blue, star-shaped flowers in early to mid-summer
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Grey Silver Blue | Green | ||
| Autumn | Gold Yellow | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
West–facing or South–facing or East–facing
Exposure
Exposed or ShelteredDrought resistance
Yes Hardiness
H7Botanical details
- Family
- Apocynaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Amsonia are clump-forming perennials with milky sap, lance-shaped leaves and terminal panicles of small, starry blue flowers in spring and summer
- Name status
Correct
- Plant range
- USA (Arkansas, Oklahoma)
How to grow
Cultivation
Grows best in a fertile, moist but well-drained soil in full sun, although it can tolerate partial shade and is fairly drought-tolerant
Propagation
Propagate by seed sown in pots in a cold frame in autumn or spring. Alternatively propagate by division in spring or root softwood cuttings in early summer
Suggested planting locations and garden types
- Cottage and informal garden
- Prairie planting
- Flower borders and beds
Pruning
Cut back in late autumn
Pests
Generally pest-free
Diseases
Generally disease-free
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