'String Theory' (Amsonia)
'String Theory' (Amsonia)
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String Theory Amsonia is a spring-flowering perennial that provides foliage and texture interest throughout summer. It has stunning light periwinkle blue flowers are produced above dark green, threadleaf leaves. It is heat tolerant and resists deer. Fertilize with Proven Winners Continuous Release Plant Food in spring.
- 18-22 inches tall & 36 inches wide at maturity
- Grow in zones 4-8
- Partial to full sun (4+ hours) required
Our perennial plants are entering their natural dormancy phase. As part of this process, foliage and blooms are browning and dying back—this is completely normal! We give the plants a hard trim in our greenhouse to support them as they conserve energy for the next growing season. Rest assured, your perennials will wake up and thrive again when it's time in your growing zone. Dormancy is how they prepare for a healthy, vibrant comeback as the seasons change!
Care: Clean away any dead foliage after frost. Fertilize with Proven Winners Continuous Release Plant Food in spring.
Shipping Info:
- Enjoy free shipping on orders over $75
- Size at shipping varies by the season and plant
- 1 Gallon plants are 6-14 in. tall and about 1-year old at shipment, varies by season and plant
- 1 Gallon containers are 7.5 in. dia and 6.5 in. tall
Features
- Heat Tolerant
- Native to N. America
- Resists Deer
Characteristics
- Height: 18 - 22 in
- Spread: 36 in
- Habit: Mounded
- Bloom Color: Blue
- Foliage Color: Green
- Bloom Time: Spring-Summer
- Plant Type: Perennial