When to plant radish 🌶️
Radish takes 22–30 days to mature, spaced 2" apart at 0.5" deep. Direct-sow only — does not transplant well.
Planting dates by USDA zone
| Zone | Direct sow | Harvest |
|---|---|---|
| Zone 3 | April 27 – July 6 | June 22 – July 6 |
| Zone 4 | April 17 – June 26 | June 12 – June 26 |
| Zone 5 | April 3 – June 12 | May 29 – June 12 |
| Zone 6 | March 18 – May 27 | May 13 – May 27 |
| Zone 7 | March 4 – May 13 | April 29 – May 13 |
| Zone 8 | February 16 – April 26 | April 12 – April 26 |
| Zone 9 | January 18 – March 28 | March 14 – March 28 |
| Zone 10 | January 2 – March 12 | February 27 – March 12 |
Dates are averages — adjust ±1–2 weeks for your microclimate. Need your exact dates? Enter your zip code below.
Get your personalized radish planting dates
Care tips
- Pull as soon as ready — they get woody fast.
- Succession sow every 10 days in spring & fall.
- Pair rows with carrots to mark slow germinators.
Good companions
Carrot, Lettuce, Cucumber.
Read more: Companion planting chart for vegetables
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Frequently asked questions
When should I plant radish outdoors in zone 5?▾
In USDA zone 5, direct sow radish between April 3 and June 12, relative to the average last spring frost on May 1.
When should I plant radish outdoors in zone 6?▾
In USDA zone 6, direct sow radish between March 18 and May 27, relative to the average last spring frost on April 15.
When should I plant radish outdoors in zone 7?▾
In USDA zone 7, direct sow radish between March 4 and May 13, relative to the average last spring frost on April 1.
When should I plant radish outdoors in zone 8?▾
In USDA zone 8, direct sow radish between February 16 and April 26, relative to the average last spring frost on March 15.
How long does radish take to grow?▾
Radish typically takes 22–30 days to mature, with harvest beginning roughly 4–6 weeks after the last spring frost.