Plant name | Zone | Start seeds indoors | Start seeds outdoors | Plant seedlings/transplants outdoors | Plant spacing | # plants per person |
Rhubarb | 3a | Not recommended | Not recommended | April 15-May 1 | 4-6 feet | 2-3 |
Rhubarb | 3b | Not recommended | Not recommended | April 15-May 1 | 4-6 feet | 2-3 |
Rhubarb | 4a | Not recommended | Not recommended | April 15-May 1 | 4-6 feet | 2-3 |
Rhubarb | 4b | Not recommended | Not recommended | April 15-May 1 | 4-6 feet | 2-3 |
Rhubarb | 5a | Not recommended | Not recommended | March 15-April 1 | 4-6 feet | 2-3 |
Rhubarb | 5b | Not recommended | Not recommended | March 15-April 1 | 4-6 feet | 2-3 |
Rhubarb | 6a | Not recommended | Not recommended | March 15-April 1 | 4-6 feet | 2-3 |
Rhubarb | 6b | Not recommended | Not recommended | March 15-April 1 | 4-6 feet | 2-3 |
Rhubarb | 7a | Not recommended | Not recommended | March 15-April 1 | 4-6 feet | 2-3 |
Rhubarb | 7b | Not recommended | Not recommended | March 15-April 1 | 4-6 feet | 2-3 |
Rhubarb | 8a | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rhubarb | 8b | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rhubarb | 9a | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rhubarb | 9b | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rhubarb | 10a | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rhubarb | 10b | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rhubarb | 11a | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rhubarb | 11b | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
* Perennial, but needs a hard freeze in winter. Grow from crowns that are direct sown, not seeds.