When to plant nasturtiums
Short answer
Plant nasturtiums around your last spring frost. In a mid climate (zone 5) that's around Apr 15. Enter your ZIP for your exact dates.
| Climate zone | Start indoors | Plant outside | Harvest |
|---|---|---|---|
| Zone 1 | — | Jan 15 | Mar 11 |
| Zone 2 | — | Feb 15 | Apr 11 |
| Zone 3 | — | Mar 10 | May 4 |
| Zone 4 | — | Mar 30 | May 24 |
| Zone 5 | — | Apr 15 | Jun 9 |
| Zone 6 | — | Apr 30 | Jun 24 |
| Zone 7 | — | May 15 | Jul 9 |
| Zone 8 | — | Jun 1 | Jul 26 |
Higher climate-zone numbers are colder, so planting shifts later. Nasturtiums is a tender crop. Enter your ZIP in the calculator for your exact zone and dates.
Your exact dates
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Frequently asked questions
When should I plant nasturtiums?
Plant nasturtiums around your last spring frost. That's around Mar 30 in zone 4 and Apr 30 in zone 6.
Can I direct sow nasturtiums?
Yes — nasturtiums is usually sown directly in the garden rather than started indoors.
How long until nasturtiums blooms?
About 55 days from planting until first bloom. In zone 6, nasturtiums planted around Apr 30 is typically blooming near Jun 24.