When to plant Broccoli in Zone 9a
In Zone 9a, Broccoli: start seeds indoors around Jan 10–Jan 24; transplant outdoors around Feb 14–Feb 28; direct sow outdoors around Aug 29–Sep 19. Expect to harvest around Apr 20–May 4.
| Step | When |
|---|---|
| Start seeds indoors | Jan 10 – Jan 24 |
| Transplant outdoors | Feb 14 – Feb 28 |
| Direct sow outdoors | Aug 29 – Sep 19 |
| Harvest | Apr 20 – May 4 |
| Harvest | Nov 2 – Nov 23 |
Tip: A cool-season brassica. Transplant in early spring or late summer; it bolts in midsummer heat.
Zone 9a averages a last spring frost around Feb 28 and a first fall frost around Dec 5. These are zone averages — look up your ZIP for your exact area.
See the full Zone 9a calendar in the tool →