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
| 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 |
