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String Theory Blue Star – Thread-Leaf Compact Perennial – evergreen
String Theory Blue Star – Thread-Leaf Compact Perennial (Amsonia 'String Theory')
String Theory Blue Star – Thread-Leaf Compact Perennial (Amsonia 'String Theory')
String Theory Blue Star – Thread-Leaf Compact Perennial (Amsonia 'String Theory')
String Theory Blue Star – Thread-Leaf Compact Perennial (Amsonia 'String Theory')
String Theory Blue Star – Thread-Leaf Compact Perennial (Amsonia 'String Theory')
String Theory Blue Star – Thread-Leaf Compact Perennial – evergreen
Note
Please note that the plant will be shipped in its pot, securely fastened with multiple layers of clear tape to prevent any shifting or damage during transit. This ensures that the plant arrives to you with minimal damage, safely and securely. We have been employing this method for shipping plants for several years, occasionally using smaller pots for added safety and convenience during transit. It's important to understand that many plants enter a dormant state during the fall and winter months, resulting in the loss of most leaves and appearing dry or lifeless. This is a natural process, and come springtime, they will begin to regrow and thrive once again. Please be aware that due to regulations set by the Department of Agriculture, there are certain plants and sizes that we are unable to ship to California. We apologize for any inconvenience this may cause.

String Theory Blue Star – Thread-Leaf Compact Perennial (Amsonia 'String Theory')

Sale price $80.99
Regular price $105.29You saved 23% OFF
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Note
Please note that the plant will be shipped in its pot, securely fastened with multiple layers of clear tape to prevent any shifting or damage during transit. This ensures that the plant arrives to you with minimal damage, safely and securely. We have been employing this method for shipping plants for several years, occasionally using smaller pots for added safety and convenience during transit. It's important to understand that many plants enter a dormant state during the fall and winter months, resulting in the loss of most leaves and appearing dry or lifeless. This is a natural process, and come springtime, they will begin to regrow and thrive once again. Please be aware that due to regulations set by the Department of Agriculture, there are certain plants and sizes that we are unable to ship to California. We apologize for any inconvenience this may cause.
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Shipping Policy - Home and Gardens For Less

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We offer free shipping on all orders with a total value of $99 or more.

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For orders with a total value below $99, we charge a flat rate shipping fee of $39.99.

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Once your order is placed, please allow 1-2 business days for processing. After processing, the estimated delivery time is as follows:

  • Standard Shipping: 5-7 business days
  • Expedited Shipping: 2-3 business days
  • Priority Shipping: 1-2 business days

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String Theory Blue Star – Thread-Leaf Compact Perennial – evergreen
String Theory Blue Star – Thread-Leaf Compact Perennial (Amsonia 'String Theory')
Sale price $80.99
Regular price $105.29You saved 23% OFF
Sold out

Product Details

Description

Amsonia 'String Theory' is a compact, refined version of the classic Blue Star. It features soft, thread-like foliage and stunning clusters of starry, periwinkle-blue flowers in late spring. This low-maintenance perennial adds graceful texture to sunny borders, cottage gardens, and pollinator-friendly landscapes. Its fall foliage turns a brilliant golden-yellow, making it a standout in every season. It's deer-resistant and drought-tolerant once established — perfect for gardeners seeking beauty with ease.

  • Hardiness USDA Zones: 4–9
  • Light: Full Sun to Partial Shade
  • Mature Size: 18–22 inches tall × 28–32 inches wide
  • Bloom Time: Late Spring to Early Summer
  • Flower Color: Periwinkle Blue
  • Foliage: Fine-textured, green; turns golden yellow in fall
  • Pollinator Friendly: Attracts bees & butterflies
  • Deer Resistant and Drought Tolerant

Note: Your plant ships potted and carefully packaged. It may enter dormancy in fall/winter and appear dry or leafless — this is normal. Growth resumes in spring. Due to agricultural regulations, we cannot ship certain sizes to California.

Frequently Asked Questions❓

Does Amsonia 'String Theory' need full sun?

It grows best in full sun but tolerates partial shade, especially in hot climates.

Will deer eat this plant?

Not likely! Amsonia is naturally deer-resistant due to its sap and texture.

When does it bloom?

It blooms in late spring to early summer with soft blue star-shaped flowers.

Does it provide fall color?

Yes! Its fine green leaves turn a bright golden-yellow in fall.

Can it be grown in containers?

Yes, its compact form makes it suitable for larger pots and raised beds.

Growing Zones: 4–9

USDA Zone Map 4-9
Mature Height: 18–22 inches
Sunlight: Full Sun to Part Shade
Mature Width: 28–32 inches
Botanical Name: Amsonia hubrichtii 'String Theory'
Growth Rate: Moderate
Foliage: Fine, thread-like green foliage
Plant Type: Herbaceous Perennial
Product Type: Low-Maintenance Pollinator Perennial

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