Amsonia orientalis
Eastern blue star, Rhazya orientalis
Amsonia Amsonia
A. orientalis - A. orientalis is a clump-forming, woody-based, deciduous perennial with erect stems bearing narrowly lance-shaped, grey-green leaves and short, compact or loose panicles of pale blue to violet-blue flowers in summer.
Amsonia orientalis is: Deciduous
Clump-forming, Erect
Contact with the milky sap may cause skin irritation.
Pale-blue in Spring; Pale-blue in Summer
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
Generally pest free.
Generally disease free.
Cut back in late autumn.
Division, Seed, Softwood cuttings
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Amsonia orientalis (Eastern blue star) will reach a height of 0.5m and a spread of 0.3m after 2-5 years.
Beds and borders, Cottage/Informal, Drought Tolerant, Prairie planting, Woodland
Grow in moist but well-drained soil preferably in full sun. Will tolerate some drought and light shade. May need staking if grown in partial shade.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Sun
North, South, East, West
Exposed, Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Amsonia orientalis
Eastern blue star, Rhazya orientalis
Amsonia Amsonia
A. orientalis - A. orientalis is a clump-forming, woody-based, deciduous perennial with erect stems bearing narrowly lance-shaped, grey-green leaves and short, compact or loose panicles of pale blue to violet-blue flowers in summer.
Deciduous
Clump-forming, Erect
Contact with the milky sap may cause skin irritation.
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Pale-blue in Spring; Pale-blue in Summer
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
Generally pest free.
Generally disease free.
Cut back in late autumn.
Division, Seed, Softwood cuttings
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Amsonia orientalis (Eastern blue star) will reach a height of 0.5m and a spread of 0.3m after 2-5 years.
Beds and borders, Cottage/Informal, Drought Tolerant, Prairie planting, Woodland
Grow in moist but well-drained soil preferably in full sun. Will tolerate some drought and light shade. May need staking if grown in partial shade.
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Moist but well-drained
Acid, Alkaline, Neutral
Partial Shade, Full Sun
North, South, East, West
Exposed, Sheltered
Hardy (H4)
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3
Amsonia orientalis (Eastern blue star)
Spilostethus pandurus
Insect
Absent
2
3
Seed bug unlikely to pose a significant threat to UK plant health.
Amsonia orientalis (Eastern blue star)
Spilostethus hospes
Insect
Absent
1
3
Seed bug unlikely to pose a significant threat to UK plant health.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
In order to add a note on this plant, please add this plant to your plant lists.
This plant likes... | Garden match | |
Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
Soil drainage: | Moist but well-drained | Tell us... |
Soil pH: | Acid, Alkaline, Neutral | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | North, South, East, West | Tell us... |
Exposure: | Exposed, Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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