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All media depicts mature plants.

'String Theory' Bluestar

PERENNIAL

Description

  • Clusters of delicate blue flowers bloom in spring!
  • Textured foliage takes on vibrant fall color.
  • Native, easy to grow, and deer resistant.
  • Zones 4-9, sun/part sun, 22" tall x 36" wide at maturity.
Zone 4-9
Light part sun/sun
short

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Hand-picked at our greenhouse

Shipped to your door

Arrives as young plant

background image

More Information

Description As a native perennial with textured foliage, stunning flowers, and rock-solid dependability, 'String Theory' bluestar (Amsonia) checks all of our boxes. It blooms in spring with delicate periwinkle-blue clusters of flowers, which serve as an important nectar source for pollinators. Even after the flower fade, this perennial never seems to blend into the background. Instead, its bushy and fine-textured habit is prominent in the landscape, especially when the foliage takes on brilliant golden fall colors.

This perennial is easy to grow, deer resistant, tolerant of heat and humidity, and perfect for gardeners of any level.

Compared to the popular 'Storm Cloud' bluestar, 'String Theory' is more compact and boasts thinner needle-like leaves.
Details Botanical name: Amsonia 'String Theory'
Common name: bluestar, threadleaf bluestar
Zone: 4 - 9
Sun exposure: Sun (6+ hours sun) to part sun (4-6 hours sun)
Height x width: 18 - 22" tall and 32 - 36" wide
Flower color: Blue
Foliage color: Green
Season of interest: Late winter and early spring
Bloom time: Spring
Features: Space savers, native, proven winners, heat tolerant, fall color, drought tolerant, deer resistant, container plants, cold tolerant, rain garden
Uses: Edging, flower gardens, wildlife gardens, native plant gardens, landscaping
How To Grow Soil: Thrives in most soils.
Light: Flowers best in full sun (> 6 hours sun) but will tolerate part sun (4-6 hours sun) as well.
Water: Average moisture is ideal and will tolerate dry and wet conditions.
Spacing: 32 - 36"
Fertilizing: Not required, but if desired, fertilize with an all-purpose garden fertilizer in spring.
Winterizing: No special winter requirements.
Maintenance & pruning: This plant has a naturally petite habit, so pruning is not necessary. However, if you desire a more uniform shape, you can prune just after it’s done flowering.

Customer Reviews

Based on 1 review
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L
L.T. (North Carolina)
String Theory. - barely hanging on by a thread

I purchased quite a few of these and planted them in different areas and different conditions to see where they would thrive. None have. All are barely hanging on. Full sun, partial sun, partial shade, full shade, the areas run the gamut in water retention and I supplemental water when needed. I’ll probably purchase again in the Fall to see if the problem was just being planted in the middle of Summer, but overall…I’m unimpressed when I really really wanted to love them.

Hello! We're sorry to hear that you had some trouble with your plants. Our horticulture team is always available to help out and provide guidance. They can be reached at info@greatgardenplants.com.

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Happy Gardening!