When to plant Nasturtium in Zone 3a
In Zone 3a, Nasturtium: direct sow outdoors around May 25–Jun 8. Expect to harvest around Jul 19–Aug 2.
| Step | When |
|---|---|
| Direct sow outdoors | May 25 – Jun 8 |
| Harvest | Jul 19 – Aug 2 |
Tip: Edible flowers and leaves; direct-sow the large seeds where they're to grow — it resents transplanting.
Zone 3a averages a last spring frost around May 25 and a first fall frost around Sep 8. These are zone averages — look up your ZIP for your exact area.
See the full Zone 3a calendar in the tool →