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- Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
- Mature Height 18 - 22 Inches
- Mature Spread 18 - 22 Inches
- Growing Zones 4 - 9
- Use As A Thriller In Containers
Boasting a light blue flower atop dark green threadleaf foliage, this late spring to early summer flowering perennial will provide color and soft texture to your garden. In the fall, the foliage will turn from dark green to a brilliant orange. It can grow to a compact height of up to 22” and a spread of up to 36”. This easy to maintain plant will be an excellent addition to any garden.
Native to North America, this perennial is deer resistant and tolerant to moderate heat and humidity. Compact growth habits will create a visual appeal without too much pruning or shaping. Does great in mass planting, border planting and overall landscaping. Providing a splash of color and texture that will complement other flowers and foliage, it does great as a cut flower in floral arrangements. This plant thrives in average soil without much care, nor attention.
String Theory Amsonia Care
Planting in either poor or average quality soil will render the best results within the foliage and flowers, alike. A neutral pH of 7.0 is recommended for the soil for best results. It Is best planted in either partial or full sun. If the soil is too fertile or in too much shade, the compact habit is less likely to continue as the plant loses its shape by becoming droopy. Consistent watering is best for maintaining moist soil, but do be careful not to overwater.
After flowering, cut the stems down to about 6”-8” from the ground to encourage prolific flowering for the next spring. The growth habits of this plant provide you with peace of mind that you will not need to be endlessly dividing the individual plants to create space for new growth. After several years, plant division is recommended to maintain a healthy root system.
String Theory Amsonia Spacing
This is a compact, medium sized perennial that does well planted on its own or as a border plant. Growing up to 36” wide, the plant spacing is recommended to be 32”-36” on center.
String Theory Amsonia Information
| USDA Hardiness Zones: 4 - 9 |
| Plant Type: Bushes |
| Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight) |
| Mature Height: 18 - 22 Inches |
| Mature Spread: 3 Feet |
| Spacing: 3 Feet |
| Habit: Mounded |
| Flower Color(s): Blue |
| Flower Description: Light Periwinkle Blue |
| Bloom Period: Early Summer To Late Spring |
| Foliage Type: Deciduous, Herbaceous |
| Foliage Color(s): Green |
| Foliage Description: Dark green |
| Seasonal Interest: Spring Flowering, Summer Flowering |
| Watering: Average |
| Resists: Deer |
| Tolerates: Heat |
| Attracts: N/A |
| Container Role: Thriller |
| Uses: Borders, Containers, Mass Planting, Specimen or Focal Point, Wildlife Gardens |
| Features: Low Maintenance, Native to North America |
| Brand: Proven Winners |
| Common Name: String Theory Amsonia |
| Other Name(s): Bluestar |
| Scientific Name: Amsonia hybrid USPPAF, Can PBRAF |
- SKU:
- AMSTY
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.
4.5" Pot
Also Know As:
4.5" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.5"H x 3.75"W
Volume:
1.42 quarts
Quart Pot
Also Know As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
2.5 Quart
Also Know As:
2.5 Quart Pot
Plant Age:
~ 1.5 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
#1 Pot
Also Know As:
#1 Container
1 Gallon
Plant Age:
~ 1.5 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
#2 Pot
Also Know As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
#3 Pot
Also Know As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
For more detailed information, please click here.
Plant Addict Guarantee (Included On All Plant Orders)
Plant Addicts Warranty - 1 Year (Extra Purchase Required)
Guide: How to Care for Your New Plant(s)
Planter Shipping
Standard Colors: 2-3 business days
Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice
Please Note: On special orders there can not be any cancellations
Plant Shipping
Time of Order:
Summer Shipping
- If there is extreme heat we’ll delay shipping.
- We’ll have to review what areas the plants are traveling through along with your location
Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.
It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.
