When to plant Nasturtium in Zone 1a
In Zone 1a, Nasturtium: direct sow outdoors around Jun 15–Jun 29. Expect to harvest around Aug 9–Aug 23.
| Step | When |
|---|---|
| Direct sow outdoors | Jun 15 – Jun 29 |
| Harvest | Aug 9 – Aug 23 |
Tip: Edible flowers and leaves; direct-sow the large seeds where they're to grow — it resents transplanting.
Zone 1a averages a last spring frost around Jun 15 and a first fall frost around Aug 15. These are zone averages — look up your ZIP for your exact area.
See the full Zone 1a calendar in the tool →