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Amsonia hubrichtii

Amsonia hubrichtii
Hubricht's Bluestar, Arkansas Amsonia, Threadleaf Bluestar

2,5/5
3 reviews
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5 reviews

Received this lovely young plant, fresh and lush green.

Myriam, 13/05/2022

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This plant carries a 12 months recovery warranty

More information

Hardy perennial with sky blue star-shaped flowers and very delicate foliage that takes on golden hues in autumn.
Flower size
1 cm
Height at maturity
80 cm
Spread at maturity
40 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time February to March, September to October
Recommended planting time February to April, September to November
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Flowering time May to July
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Description

Amsonia hubrichtii is a deciduous plant with feathery foliage that forms large and very flexible bushy clumps up to 80 cm (32in) tall over time. The very pale blue flowers are open tubes grouped in a paniculate inflorescence and bloom abundantly between May and July. The leaves are dark green, lanceolate and very narrow with smooth edges, resembling those of a willow. The deciduous foliage takes on beautiful autumn colours, turning golden yellow or even orange before disappearing for a winter rest.

Amsonia hubrichtii is native to the Ouachita Mountains in central Arkansas, United States. These plants are very hardy and grow easily in full sun or partial shade, in well-drained and moist soil that does not dry out in summer.

A magnificent ornamental plant for gardens, its dense foliage enhances all its neighbours. You can easily integrate it into a perennial bed with natural-looking plants such as geraniums or with grasses that prefer moist soil.

The species name is derived from the name of the American botanist Leslie Hubricht, who first discovered this plant in the wild in the 1940s. As for the genus name, it was borrowed from the Virginian physician Charles Amson (18th century).

Amsonia hubrichtii in pictures

Amsonia hubrichtii (Flowering) Flowering
Amsonia hubrichtii (Foliage) Foliage

Flowering

Flower colour blue
Flowering time May to July
Inflorescence Panicle
Flower size 1 cm

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Plant habit

Height at maturity 80 cm
Spread at maturity 40 cm
Growth rate slow

Botanical data

Genus

Amsonia

Species

hubrichtii

Family

Apocynaceae

Other common names

Hubricht's Bluestar, Arkansas Amsonia, Threadleaf Bluestar

Origin

North America

Product reference857411

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Planting and care

Easy to grow in moist soil, but preferably well-drained in winter.

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Planting period

Best planting time February to March, September to October
Recommended planting time February to April, September to November

Intended location

Suitable for Meadow
Type of use Border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, well-drained

Care

Pruning instructions Cut back the clump in late winter.
Pruning Pruning recommended once a year
Pruning time February to March
Disease resistance Very good
Overwinter Can be left in the ground
2,5/5
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