'String Theory' Bluestar (Amsonia)
Perennial
- Clusters of delicate blue flowers bloom in spring!
- Textured foliage takes on vibrant fall color.
- Native, easy to grow, & deer resistant perennial from Proven Winners.
- Zones 4-9, sun/part sun, 22" tall x 36" wide at maturity.
ZONE
EXPOSURE
HEIGHT
Description
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
Patent #: PP34419
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
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.
Plant spacing is based on the ultimate width of the plants. This figure is normally given as a range; for example, 3-5’. If you live in a cold climate and/or want plants to fill in more quickly, plan to space at the shorter end of the range. If you live in a warm climate, are on a limited budget, or are willing to wait longer for plants to touch, use the higher end of the range. Using the larger number is recommended when calculating distance from a building or structure. There’s really no such thing as "maximum spacing": if you don’t want your plants to touch, you can space them as far apart as you’d like. All plant spacing is calculated on center, or in other words, the centers of the plants are spaced one half of their eventual width apart:
Unless you are planting in a straight line, as you might for hedges or edging, space your plants in a staggered or zig-zag pattern for a more interesting and naturalistic look:
Not sure just how many plants will fit in your garden? Our calculator gives you the exact amount of plants required for your space. Simply update the values and the calculator will re-calculate accordingly. Spacing information can be found in the 'How to Grow' tab on each plant's page.
I received four bushes. One bush was smaller and not as healthy. I planted it but it still remains small.
We're sorry you're having trouble with your plants. Our team of horticulture experts would love to take a closer look! Please contact us at [email protected] with your order number and photos of the plants so we can better assist you. All orders are covered by our 60-day guarantee. We look forward to helping! https://bit.ly/bb-guaranteed
I love this Amsonia and have it in my garden after planting it last year. These will supplement where I want more on my garden path. Very well packaged and healthy looking.
They came in beautiful and healthy they are thriving
I ordered several which remained relative small and sparse through the first summer. The fall color was nice, but there wasn't a ton of foliage yet.
They put on a real show in their second growing season, and reached what seems to be their full size. Can't wait for these early bloomers to kick off my little pollinator garden again next year. More airy ,delicate, and easy to manage than my storm cloud, planted in a different bed
I want to thank you for sending me a plant that was healthy and taken care of prior to mailing to me. Also I appreciate that my shrub was clipped in order to help it concentrate on growing strong roots. You are a trusted company.
I received my plants. Very nicely packaged and received very promptly, exactly when promised. Very nice root structure. I’ve potted mine until next spring. The plants are doing beautiful in my greenhouse
The String Theory Bluestar Amsonia plants I received were in excelllent condition and very healthy looking. I planted them right away and can't wait to see how they do in the spring.
It survived the winter but it is still very small.
Our friendly team of expert horticulturists would love to take a closer look. Please send us your order number and photos of the plants for further review. We look forward to helping!
I purchased 2 of these this Spring and both arrived in very good condition. They have already settled in, and are blooming. Beautiful and unusual. I really love them. Thank you so much for taking the time to package so well for their safe arrival. Also purchased Storm Cloud. Love it also!
Looking great!
It looks thriving, still wait and see. Grow almost double size of it, quart size when is delivered.
Arrived looking very healthy. Quickly started growing through fall and blooming already in March here in GA Unique flowers. Will plant more!
It came nice and healthy
Plant took to its place in the garden without any problems. Happy and healthy
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 [email protected].
All of our plants are covered under our 60-day guarantee, which you can learn more about here: https://www.greatgardenplants.com/pages/our-guarantee
Happy Gardening!
what kind of soil does in grow in?
Bluestar thrives in most soils, provided it has good drainage.
do they live in section 9
Yes! 'String Theory' bluestar can reliably grow in zone 9.
What is the latin name of this plant? And what size is it?
Hello! The botanical name for 'String Theory' Bluestar is Amsonia and it comes in a one quart container.
Is this a hubrechti type of amwsonia?
Hi there! No, this is not Amsonia hubrichtii but we do have that variety which you can find here:
https://www.greatgardenplants.com/products/threadleaf-bluestar
How long does it take a plant to grow to maturity
Under normal conditions, it can take 3-5 years for plants to reach maturity.