Amsonia 'String Theory' Bluestar

Amsonia 'String Theory' Bluestar
Amsonia 'String Theory' Bluestar

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This compact threadleaf native turns golden orange in autumn
SKU 29686
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Key Characteristics

4 - 9

Mature Height

22 IN

Mature Width

3 Feet

Sun / Shade

Full Sun, Part Shade

Moisture Level

Moist, well-drained

Soil Type


Description / Amsonia 'String Theory' Bluestar

Amsonia 'String Theory' Bluestar, a Proven Winners® variety, is a perennial that enchants with its feathery foliage and fabulous flowers. The medium green threadleaf leaves retain their beauty and health throughout the summer, maintaining a soft textural element in the garden. Late spring sees clusters of light periwinkle blue flowers adorning this delightful plant, while fall brings a stunning transformation with a brilliant golden-orange hue. Both flowers and foliage are sought-after additions to floral arrangements.

'String Theory,' is a compact Amsonia hubrichtii species, commonly known as bluestar, blue star, blue star amsonia, threadleaf blue star, or Arkansas amsonia. It grows slowly and maintains an upright, clumping form. It excels as a specimen in the garden and serves as a captivating thriller in mixed containers. However, its true beauty truly shines when grouped or massed in beds and borders.

Bluestars are easy to grow. They thrive in sunny to partly shady locations with average to fertile well-drained soil. While it tolerates poor soils, it showcases its adaptability. Heat and humidity pose no challenge, and a touch of afternoon shade in hot summer regions can be beneficial. The best fall color spectacle unfolds in full sun. Once established, 'String Theory' exhibits moderate drought tolerance and stands firm as a deer-resistant beauty.

As a native North American plant, bluestars not only capture attention with their beauty but also contribute to environmental harmony. Adapted to the climate and soil conditions of the region, they thrive without the need for fertilizers or extra watering, once established. Native plants also act as natural pest controls, reducing the need for pesticides in the garden. Landscaping with native plants promotes biodiversity and provides shelter and quality food for the wildlife and pollinators that bring gardens to life and enhance their appeal.

Product Details

Item Form Bareroot
Genus Amsonia
Species hubrichtii
Variety 'String Theory'
PPAF PP34419
Product Classification Perennials
Habit Upright
USDA Zone Low 4
USDA Zone High 9
Sun / Shade Full Sun, Part Shade
Bloom Color Blue
Bloom Season Start Late Spring
Bloom Season End Early Summer
Foliage Color Medium Green
Resistance Cold Hardy, Deer Resistance, Heat Tolerant, Humidity Tolerant
Characteristics Butterfly Lovers, Easy Care Plants, Flower, Native
Uses Beds, Border, Cut Flowers, Fall Color, Foliage Interest
Zone 4, 5, 6, 7, 8, 9
State Shipping Restrictions GU, PR, VI

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