When to plant Nasturtium in Zone 5b
In Zone 5b, Nasturtium: direct sow outdoors around Apr 30–May 14. Expect to harvest around Jun 24–Jul 8.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 30 – May 14 |
| Harvest | Jun 24 – Jul 8 |
Tip: Edible flowers and leaves; direct-sow the large seeds where they're to grow — it resents transplanting.
Zone 5b averages a last spring frost around Apr 30 and a first fall frost around Oct 5. These are zone averages — look up your ZIP for your exact area.
See the full Zone 5b calendar in the tool →