How to grow radishes in a raised bed
Ready in about four weeks. Great for kids and impatient gardeners.
Spacing16 plants per square foot
How to startSow seeds right in the bed
When to plantAbout 5 weeks before your last spring frost
Time to harvestAbout 28 days
Grows toAbout 6 in tall
When to plant radishes in your zone
Dates are based on the average frost dates for each zone. Don't know your zone? Enter your ZIP code in the planner.
| Zone | Start seeds indoors | Plant in the bed | Plant again for fall |
|---|---|---|---|
| Zone 3a | — | Apr 15 | Jul 30 |
| Zone 3b | — | Apr 10 | Aug 4 |
| Zone 4a | — | Apr 7 | Aug 10 |
| Zone 4b | — | Apr 3 | Aug 17 |
| Zone 5a | — | Mar 30 | Aug 22 |
| Zone 5b | — | Mar 24 | Aug 29 |
| Zone 6a | — | Mar 18 | Sep 3 |
| Zone 6b | — | Mar 11 | Sep 8 |
| Zone 7a | — | Mar 4 | Sep 15 |
| Zone 7b | — | Feb 25 | Sep 22 |
| Zone 8a | — | Feb 18 | Sep 29 |
| Zone 8b | — | Feb 8 | Oct 7 |
| Zone 9a | — | Jan 25 | Oct 20 |
| Zone 9b | — | Jan 11 | Oct 29 |
| Zone 10a | — | Dec 27 | Nov 8 |
| Zone 10b | — | Dec 11 | Nov 19 |
Tips for raised beds
- In square-foot gardening, plant 16 plants in each 1 × 1 ft square.
- It stays fairly short, so it can go near the south (sunny) edge of the bed.
- Most vegetables and fruit need at least 6 hours of direct sun a day.
Where to buy radish seeds
Burpee · True Leaf Market · Botanical Interests
Plan where your radishes go. Pick your bed size and material, choose your plants, and get a printable plan with measurements, a shopping list and planting dates for your ZIP code. Free, no sign-up.
Open the free planner →