Amsonia hubrichtii
Arkansas amsonia, Hubrichts blue star, Narrow leaf blue star
- Height × spread
- 0.9m × 0.8m
- Position
- Full sun
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Summer, Autumn
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This makes a pretty mound of bouffant foliage. The plant has slender, needle-like leaves held on more or less upright stems. They are coloured dark green and have fresh green young growth at the stem tip. The plant is likened to a bottle brush plant but is more refined in appearance. During late spring and early summer there are clusters of light blue starry flowers. In autumn the foliage turns a bright burnished yellow and is highly picturesque for a period before leaf fall. Give this a sunny to partly shaded site in good loam that is well drained but always has moisture in it. When established it has reasonable drought tolerance.
- Flower colour
- Blue
- Foliage colour
- Green
- Autumn foliage
- Yellow-burnt
- Variegated
- No
- Scent
- No
- Shape
- Fan
- Height
- 0.9m
- Spread
- 0.8m
- Season of interest
- Summer, Autumn
- Flowers in
- Summer, Autumn
- Evergreen
- Deciduous
- Garden style
- Small scale garden, Prairie garden
- Sun or shade
- Likes full sun, likes part shade, likes light shade
- Soil type
- Chalk, Loam (normal)
- 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.