When to plant Sweet Pea in Zone 9b
In Zone 9b, Sweet Pea: direct sow outdoors around Jan 4–Jan 25. Expect to harvest around Mar 25–Apr 15.
| Step | When |
|---|---|
| Direct sow outdoors | Jan 4 – Jan 25 |
| Harvest | Mar 25 – Apr 15 |
Tip: A cool-season climber — sow early, give it a trellis, and keep picking to prolong bloom.
Zone 9b averages a last spring frost around Feb 15 and a first fall frost around Dec 15. These are zone averages — look up your ZIP for your exact area.
See the full Zone 9b calendar in the tool →