Plant name | Zone | Start seeds indoors (spring/fall) | Start seeds outdoors (spring/fall) | Plant seedlings/transplants outdoors (spring/fall) | Plant spacing | # plants per person |
Peonies | 3a | Not recommended | Not recommended | July 15-Aug. 1 | 3-4 feet | n/a |
Peonies | 3b | Not recommended | Not recommended | July 15-Aug. 1 | 3-4 feet | n/a |
Peonies | 4a | Not recommended | Not recommended | July 15-Aug. 1 | 3-4 feet | n/a |
Peonies | 4b | Not recommended | Not recommended | July 15-Aug. 1 | 3-4 feet | n/a |
Peonies | 5a | Not recommended | Not recommended | Aug. 15-Sept. 1 | 3-4 feet | n/a |
Peonies | 5b | Not recommended | Not recommended | Aug. 15-Sept. 1 | 3-4 feet | n/a |
Peonies | 6a | Not recommended | Not recommended | Aug. 15-Sept. 1 | 3-4 feet | n/a |
Peonies | 6b | Not recommended | Not recommended | Aug. 15-Sept. 1 | 3-4 feet | n/a |
Peonies | 7a | Not recommended | Not recommended | Aug. 15-Sept. 1 | 3-4 feet | n/a |
Peonies | 7b | Not recommended | Not recommended | Aug. 15-Sept. 1 | 3-4 feet | n/a |
Peonies | 8a | Not recommended | Not recommended | Sept. 15-Oct. 1 | 3-4 feet | n/a |
Peonies | 8b | Not recommended | Not recommended | Sept. 15-Oct. 1 | 3-4 feet | n/a |
Peonies | 9a | Not recommended | Not recommended | Sept. 15-Oct. 1 | 3-4 feet | n/a |
Peonies | 9b | Not recommended | Not recommended | Sept. 15-Oct. 1 | 3-4 feet | n/a |
Peonies | 10a | Not recommended | Not recommended | Not recommended | Not recommended | n/a |
Peonies | 10b | Not recommended | Not recommended | Not recommended | Not recommended | n/a |
Peonies | 11a | Not recommended | Not recommended | Not recommended | Not recommended | n/a |
Peonies | 11b | Not recommended | Not recommended | Not recommended | Not recommended | n/a |
*Herbaceous peonies grow well in Zones 3-7; tree peonies can grow up to Zone 9. Consult your local Extension office to find a variety that will work well in your area. Plant 6-8 weeks before the first frost in the fall for blooms the following year.