When to plant Zinnia in Zone 7a
In Zone 7a, Zinnia: start seeds indoors around Mar 10–Mar 24; transplant outdoors around Apr 14–Apr 21; direct sow outdoors around Apr 7–Apr 21. Expect to harvest around Jun 6–Jun 20.
| Step | When |
|---|---|
| Start seeds indoors | Mar 10 – Mar 24 |
| Transplant outdoors | Apr 14 – Apr 21 |
| Direct sow outdoors | Apr 7 – Apr 21 |
| Harvest | Jun 6 – Jun 20 |
| Harvest | Jun 13 – Jun 20 |
Tip: A cut-flower workhorse. Direct-sow after frost and pinch young plants for more stems.
Zone 7a averages a last spring frost around Apr 7 and a first fall frost around Nov 2. These are zone averages — look up your ZIP for your exact area.
See the full Zone 7a calendar in the tool →