When to plant Zinnia in Zone 2b
In Zone 2b, Zinnia: start seeds indoors around May 2–May 16; transplant outdoors around Jun 6–Jun 13; direct sow outdoors around May 30–Jun 13. Expect to harvest around Jul 29–Aug 12.
| Step | When |
|---|---|
| Start seeds indoors | May 2 – May 16 |
| Transplant outdoors | Jun 6 – Jun 13 |
| Direct sow outdoors | May 30 – Jun 13 |
| Harvest | Jul 29 – Aug 12 |
| Harvest | Aug 5 – Aug 12 |
Tip: A cut-flower workhorse. Direct-sow after frost and pinch young plants for more stems.
Zone 2b averages a last spring frost around May 30 and a first fall frost around Sep 1. These are zone averages — look up your ZIP for your exact area.
See the full Zone 2b calendar in the tool →