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Herbaceous Perennial
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Blue | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
West–facing or South–facing or North–facing or East–facing
Exposure
Exposed or ShelteredDrought resistance
Yes Hardiness
H4Botanical details
- Family
- Apocynaceae
- Native to the UK
- 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
- Greece to Turkey
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
- Prairie planting
- Cottage and informal garden
- Flower borders and beds
Pruning
Cut back in late autumn
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
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