Threadleaf Blue Star is known for its feathery, thread-like leaves that create a soft, billowy texture in the garden. In late spring to early summer, it produces clusters of light blue, star-shaped flowers. Then, in the fall, the foliage turns a stunning golden yellow, adding another season of interest.
This plant prefers full sun to partial shade and well-drained soil. It's also relatively drought-tolerant once established, making it a good choice for gardens in drier climates. One of the great things about Threadleaf Blue Star is that it's resistant to deer and rabbits, making it a great addition to a wildlife-friendly garden.
Threadleaf Blue Star can grow up to 2-3 feet tall and wide, so it's a good idea to plant it in the middle or back of a border where its soft texture and beautiful blooms can be easily seen.
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Type:
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Perennial
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Origins:
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Arkansas and Oklahoma
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Height:
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2' - 3'
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Spread:
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2' - 3'
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Spacing:
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2.5'
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USDA Hardiness Zone:
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5 - 8
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Culture:
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Full Sun, Part Sun
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Bloom Color:
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Blue
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Season of Interest:
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Spring, Fall
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MAINTENANCE NEEDS: Low maintenance. Water regularly in well-drained soils. Plants tend to flop if not cut back after flowering.
LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Rock Gardens, and Containers
COMPANION PLANTS: Gayfeather, Muhly Grass, Phlox
IMAGES: Photo by David J. Stang, Amsonia hubrectii 1zz, CC BY-SA 4.0, (2) peganum from Small Dole, England, Amsonia hubrichtii - Flickr - peganum, CC BY-SA 2.0, (3) Photo by David J. Stang, Amsonia hubrechtii 3zz, CC BY-SA 4.0, (4) Photo by JR P, Arkansas Bluestar (amsonia) in the Japanese Garden at Georgia's Gibbs Gardens, (5) peganum from Small Dole, England, Amsonia hubrichtii autumn foliage - Flickr - peganum (1), CC BY-SA 2.0
*As plants have ranges in appearance they may not appear as the images shown.
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