Plant name | Zone | Start seeds indoors | Start seeds outdoors | Plant seedlings/transplants outdoors | Plant spacing | # plants per person |
Cauliflower | 3a | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | 18-24 inches | 3-5 |
Cauliflower | 3b | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | 18-24 inches | 3-5 |
Cauliflower | 4a | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | 18-24 inches | 3-5 |
Cauliflower | 4b | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | April 15-May 1; July 15-Aug. 1 | 18-24 inches | 3-5 |
Cauliflower | 5a | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | 18-24 inches | 3-5 |
Cauliflower | 5b | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | 18-24 inches | 3-5 |
Cauliflower | 6a | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | 18-24 inches | 3-5 |
Cauliflower | 6b | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | 18-24 inches | 3-5 |
Cauliflower | 7a | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | 18-24 inches | 3-5 |
Cauliflower | 7b | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | March 15-April 1; Aug. 15-Sept. 1 | 18-24 inches | 3-5 |
Cauliflower | 8a | Feb. 15-March 1; Sept. 15-Oct. 1 | Feb. 15-March 1; Sept. 15-Oct. 1 | Feb. 15-March 1; Sept. 15-Oct. 1 | 18-24 inches | 3-5 |
Cauliflower | 8b | Feb. 15-March 1; Sept. 15-Oct. 1 | Feb. 15-March 1; Sept. 15-Oct. 1 | Feb. 15-March 1; Sept. 15-Oct. 1 | 18-24 inches | 3-5 |
Cauliflower | 9a | Jan. 15-Feb. 1; Sept. 15-Oct. 1 | Jan. 15-Feb. 1; Sept. 15-Oct. 1 | Jan. 15-Feb. 1; Sept. 15-Oct. 1 | 18-24 inches | 3-5 |
Cauliflower | 9b | Jan. 15-Feb. 1; Sept. 15-Oct. 1 | Jan. 15-Feb. 1; Sept. 15-Oct. 1 | Jan. 15-Feb. 1; Sept. 15-Oct. 1 | 18-24 inches | 3-5 |
Cauliflower | 10a | Jan. 1-15; Sept. 15-Oct. 1 | Jan. 1-15; Sept. 15-Oct. 1 | Jan. 1-15; Sept. 15-Oct. 1 | 18-24 inches | 3-5 |
Cauliflower | 10b | Jan. 1-15; Sept. 15-Oct. 1 | Jan. 1-15; Sept. 15-Oct. 1 | Jan. 1-15; Sept. 15-Oct. 1 | 18-24 inches | 3-5 |
Cauliflower | 11a | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Cauliflower | 11b | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
* Nursery seedlings are preferred, but if you start from seed, do so 4-6 weeks before the average last frost date. Transplant seedlings 2-4 weeks before the last frost date. Direct sow seeds 4-6 weeks before last frost date as well. Plant again in mid- to late summer for a fall harvest.
* This one was tricky because you don't really have to start seeds, so the dates for both seeds and seedlings are similar.