Amsonia orientalis
Oriental blue star
Also known as Rhazya orientalis
- Height × spread
- 0.6m × 0.3m
- Position
- Full sun
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
Seldom seen, this very pretty plant when in flower has masses of little blue-grey, star-shaped flowers that clothe the plant like a spangled shawl. The fresh green, smooth, shiny foliage, like the skin of a green apple, is pleasant too. Its low growth and dense, spreading habit means that this is suited in particular, to growing in the company of roses.
- Flower colour
- Blue, Grey
- Foliage colour
- Green
- Stem colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Fan
- Height
- 0.6m
- Spread
- 0.3m
- Season of interest
- Summer
- Flowers in
- Summer
- Evergreen
- Deciduous
- Garden style
- Wild flower meadow, Small scale garden, Prairie garden
- Sun or shade
- Likes full sun, likes part shade
- Soil type
- All types
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Well drained soil, Dry soil, Drought resistant
- Hardiness
- Colder than -20C (RHS H7)
- Borders & containers
- Borders
- Hazards
- No
Spring
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Spring - early-mid · Planting
Divide when too large
The plant can be divided if it becomes too large or another plant is required. This may involve physically dividing the clump in two, removing offsets or small bulbs or dividing rhizomes. The new plants can be grown in pots or planted in the ground.
Summer
Summer - early · Outdoors
Feed a general fertiliser
Where plants have moderate needs for nutrients, they can simply be given a general feed, fairly early in the growth season so that the growth has plenty of time to harden off before the cold weather.
Give plants a general boost with the application of a general purpose fertiliser which is spread around the root area of the plant, with amounts as directed on the feed label.