Plant name | Zone | Start seeds indoors (spring/fall) | Start seeds outdoors (spring/fall) | Plant seedlings/transplants outdoors (spring/fall) | Plant spacing | # plants per person |
Sunflower | 3a | Not recommended | On/around May 15 (after last frost) | On/around May 15 (after last frost) | 6 inches | n/a |
Sunflower | 3b | Not recommended | On/around May 15 (after last frost) | On/around May 15 (after last frost) | 6 inches | n/a |
Sunflower | 4a | Not recommended | On/around May 15 (after last frost) | On/around May 15 (after last frost) | 6 inches | n/a |
Sunflower | 4b | Not recommended | On/around May 15 (after last frost) | On/around May 15 (after last frost) | 6 inches | n/a |
Sunflower | 5a | Not recommended | On/around April 15 (after last frost) | On/around April 15 (after last frost) | 6 inches | n/a |
Sunflower | 5b | Not recommended | On/around April 15 (after last frost) | On/around April 15 (after last frost) | 6 inches | n/a |
Sunflower | 6a | Not recommended | On/around April 15 (after last frost) | On/around April 15 (after last frost) | 6 inches | n/a |
Sunflower | 6b | Not recommended | On/around April 15 (after last frost) | On/around April 15 (after last frost) | 6 inches | n/a |
Sunflower | 7a | Not recommended | On/around April 15 (after last frost) | On/around April 15 (after last frost) | 6 inches | n/a |
Sunflower | 7b | Not recommended | On/around April 15 (after last frost) | On/around April 15 (after last frost) | 6 inches | n/a |
Sunflower | 8a | Not recommended | On/around March 15 (after last frost) | On/around March 15 (after last frost) | 6 inches | n/a |
Sunflower | 8b | Not recommended | On/around March 15 (after last frost) | On/around March 15 (after last frost) | 6 inches | n/a |
Sunflower | 9a | Not recommended | On/around Feb. 15 (after last frost) | On/around Feb. 15 (after last frost) | 6 inches | n/a |
Sunflower | 9b | Not recommended | On/around Feb. 15 (after last frost) | On/around Feb. 15 (after last frost) | 6 inches | n/a |
Sunflower | 10a | Not recommended | Dec. 1-March 30 | Dec. 1-March 30 | 6 inches | n/a |
Sunflower | 10b | Not recommended | Dec. 1-March 30 | Dec. 1-March 30 | 6 inches | n/a |
Sunflower | 11a | Not recommended | Dec. 1-March 1 | Dec. 1-March 1 | 6 inches | n/a |
Sunflower | 11b | Not recommended | Dec. 1-March 1 | Dec. 1-March 1 | 6 inches | n/a |
* Direct sow or transplant seeldings after the threat of frost has passed. You can continue to sow seeds every couple of weeks for a prolonged bloom.