Free Shipping

On all orders over $35!

#1 Grower

of Veggie & Herb Plants

Safe Shopping

via secure checkout

Amsonia/Blue Star

Use our zone-based planting guide to know when to plant onia blue star.

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Amsonia/Blue Star 3a Not recommended Not recommended On/around May 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 3b Not recommended Not recommended On/around May 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 4a Not recommended Not recommended On/around May 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 4b Not recommended Not recommended On/around May 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 5a Not recommended Not recommended On/around April 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 5b Not recommended Not recommended On/around April 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 6a Not recommended Not recommended On/around April 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 6b Not recommended Not recommended On/around April 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 7a Not recommended Not recommended On/around April 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 7b Not recommended Not recommended On/around April 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 8a Not recommended Not recommended On/around March 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 8b Not recommended Not recommended On/around March 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 9a Not recommended Not recommended On/around March 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 9b Not recommended Not recommended On/around March 15 (after last frost) 2-3 feet n/a
Amsonia/Blue Star 10a Not recommended Not recommended Not recommended Not recommended n/a
Amsonia/Blue Star 10b Not recommended Not recommended Not recommended Not recommended n/a
Amsonia/Blue Star 11a Not recommended Not recommended Not recommended Not recommended n/a
Amsonia/Blue Star 11b Not recommended Not recommended Not recommended Not recommended n/a

* Be sure to research a variety that is cold-hardy to your growing Zone. Starting from seeds is timely (upwards of 20 weeks) and can be challenging. For best results, start with seedlings.