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A size chart showing 4 different options for Perennial Plants: 4.5" Eco+ Elite (5-8" plant height, 4.5" pot width, 5" pot height); 0.65 Gallon (6-14" plant height, 6.5" pot width, 6.5" pot height); 1 Gallon (6-24" plant height, 6.5" pot width, 7.13" pot height); 2 Gallon (18-28" plant height, 8.88" pot width, 9.38" pot height).
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A size chart showing 4 different options for Perennial Plants: 4.5" Eco+ Elite (5-8" plant height, 4.5" pot width, 5" pot height); 0.65 Gallon (6-14" plant height, 6.5" pot width, 6.5" pot height); 1 Gallon (6-24" plant height, 6.5" pot width, 7.13" pot height); 2 Gallon (18-28" plant height, 8.88" pot width, 9.38" pot height).
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'String Theory' Bluestar (Amsonia hybrid)

Please Note: Due to state restrictions, we are unable to ship to Idaho until Oct 1.
Please select Size and Ship Week to view correct pricing and availability.
Price
Regular price $2849
Regular price $3799 Sale price $2849
Save 25%
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Orders placed before 11am ET will ship same day. Orders placed after 11am ET will ship next day. Annual orders ship Monday – Wednesday. Perennial, Shrub, and Hardgood orders ship Monday – Friday.
  • Free Shipping $175+
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'String Theory' Bluestar is a charming spring-flowering perennial that adds beauty and texture to your garden. In spring, delicate light periwinkle blue flowers bloom gracefully above its fine, dark green, thread leaf foliage. This low-maintenance, compact plant thrives effortlessly.  As fall approaches, the foliage transforms into a stunning golden orange, bringing vibrant color to your landscape. Perfect for adding a touch of elegance and seasonal flair, 'String Theory' Bluestar is an excellent choice for those seeking a garden standout with minimal care.

  • 18-22 inches tall and 32-36 inches wide at maturity
  • Hardy in zones 4-9, be sure to check your USDA zone to ensure success
  • Plant in part to full sun (4+ hours daily)
  • Space plants 32-36 inches apart for best results
  • Produces light periwinkle blue flowers in late spring to early summer
  • Maintains green threadleaf foliage from spring to frost
  • Great for borders, landscapes, mass plantings
  • Resists deer
  • Native to North America, heat tolerant, low maintenance, fall interest

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 $175
  • Size at shipping varies by season, plant, and trimming schedules
    • Quart perennials are 5-8 in. at the time of shipment
    • 0.65 Gallon perennials are 6-14 in. at the time of shipment
    • 1 Gallon perennials are 6-24 in. at the time of shipment
  • Perennials shipped Nov-Apr will arrive dormant; perennials shipped Apr-Oct will arrive green or in bloom

 

Read our guide to get started with planning a garden
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Customers praised these "perfect plants" for arriving healthy with attractive "feathery foliage" and blooms. Many are excited for spring blooms and fall colors. While most plants thrived, some experienced foliage loss after planting. Shipping occasionally caused damage, though replacements were provided. Overall, shoppers appreciated the quality and value.

  • 5 stars: 16 (94%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (6%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anonymous
Perfect

Perfect plants!

😊

T
Teresa F.
Came blooming! Lovely plant! Can’t wait to see

Came blooming! Lovely plant! Can’t wait to see the fall colors!

Thank you for leaving such a lovely review for our ''String Theory' Bluestar (Amsonia hybrid)!' We're so happy to hear that your plant arrived blooming and that you're looking forward to seeing its fall colors. We hope it continues to bring you joy and beauty in your garden. Happy growing!

V
Valarie

Healthy plant

C
Christie R.
'String Theory' Bluestar (Amsonia hybrid)

I love the texture of the leaves. Three of the four have been planted, so I can’t say how they’ll overwinter in zone 6B. Looking forward to the yellow fall color and the blue blooms of spring.

Thank you for sharing!! Enjoy :)

J
Janette S.
'String Theory' Bluestar (Amsonia hybrid)

One lost most of its foliage within days of planting but did shoot up a new stem. Another one lost half of its foliage. One is still green . None have bloomed.

Janette,
Thank you for sharing. We're sorry to hear this and happy to help! Please, respond to this email with a photo of their current condition.

J
Jeffrey K.
'String Theory' Bluestar (Amsonia hybrid)

Brought two one for me and a friend, plants when arrived were a great plant for the price!

D
Donna M.
'String Theory' Bluestar (Amsonia hybrid)

I bought two of these gallon size perennials as a visual reminder of my mom. They are doing very well. Having bought them at the end of May, after their blooming season, I can hardly wait to see them next spring. Proven Winners was great -- sending replacements because when I first received them, the delivery company had had them upside down and destroyed many of the stems/branches, Thank you PW!

J
Jane K.
'String Theory' Bluestar (Amsonia hybrid)

Healthy looking and well shipped. Minor damage which should not affect growth. Waiting to see how it does over Winter and hopefully blooms in the Spring.

J
Joan D.
'String Theory' Bluestar (Amsonia hybrid)

I'm always eager to receive Proven Winners plants because I know they'll all be of exceptional quality & in very good health! These were vibrant & strong, packed & shipped very well! Always reliably successful & beautiful -- thank you!

Joan,
Thank you for sharing!! Enjoy :)

T
Tina S.
'String Theory' Bluestar (Amsonia hybrid)

The 3 plants arrived healthy after bloom cycle was done. They were packaged tightly and dirt stayed inside the packaging. One of the containers was crushed but the roots were still in tact. They are looking great in the flower bed and are still healthy in the summer heat. I am excited to see them bloom next spring.

Tina,
Thank you for sharing!! Enjoy :)

R
Rose M.C.
'String Theory' Bluestar (Amsonia hybrid)

The plants arrived in great condition and were huge. They are already making a beautiful statement in my garden with their lovely feathery foliage. Can't wait to see the blooms in spring!

T
Tina H.
'String Theory' Bluestar (Amsonia hybrid)

Only 1 of the 3 plants survived shipping. 2 of the boxes were severely damaged. Sent an email and response was plants are typically harder to withstand treatment. Won’t deal with PW direct in future.

Tina,
Thank you for sharing. We're sorry to hear this and happy to help! Please, respond to this email with a photo of their current condition.

G
Ginger D.
'String Theory' Bluestar (Amsonia hybrid)

They arrived larger than I thought they would be. That was a wonderful start. They had multiple blooms on the butterfly bushes. They are planted now and ready to grow more. I am very happy.

Ginger,
Thank you for sharing!! Enjoy :)

P
Paige O.
'String Theory' Bluestar (Amsonia hybrid)

Beautiful, plants arrived undamaged

Paige,
Thank you for sharing!! Enjoy :)

A
Alisa R.
'String Theory' Bluestar (Amsonia hybrid)

Healthy good sized plant arrived. I want another one now.

D
Diann P.
'String Theory' Bluestar (Amsonia hybrid)

Beautiful plant. The first one arrived in fantastic condition. The second one had some rough treatment from shipping but recovered fine. Love your stuff.

C
Clarissa C.
'String Theory' Bluestar (Amsonia hybrid)

I was recreating a pot shown in your magazine and the amsonia really popped. Just sorry it’s already bloomed.

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