Black Radish Growing Guide
Brassicaceae family
Days to Harvest60 days
SunlightFull Sun
Frost ToleranceLight
Spacing4/sqft (6" apart)
Germination3-7 days
HardinessSemi Hardy
Germ. Temp65°F
Growth Stages
- Seedling
- Vegetative / Root Development
- Mature / Harvest Ready
Planting Dates by Zone
| Zone | Start Indoors | Transplant | Direct Sow | Harvest |
|---|---|---|---|---|
| Zone 1a | — | — | Apr 20 | Jun 19 |
| Zone 1b | — | — | Apr 20 | Jun 19 |
| Zone 2a | — | — | Apr 10 | Jun 9 |
| Zone 2b | — | — | Apr 20 | Jun 19 |
| Zone 3a | — | — | Apr 17 | Jun 16 |
| Zone 3b | — | — | Apr 10 | Jun 9 |
| Zone 4a | — | — | Mar 31 | May 30 |
| Zone 4b | — | — | Mar 27 | May 26 |
| Zone 5a | — | — | Mar 24 | May 23 |
| Zone 5b | — | — | Mar 24 | May 23 |
| Zone 6a | — | — | Mar 24 | May 23 |
| Zone 6b | — | — | Mar 11 | May 10 |
| Zone 7a | — | — | Mar 11 | May 10 |
| Zone 7b | — | — | Mar 6 | May 5 |
| Zone 8a | — | — | Mar 1 | Apr 30 |
| Zone 8b | — | — | Feb 15 | Apr 16 |
| Zone 9a | — | — | Feb 13 | Apr 14 |
| Zone 9b | — | — | Feb 3 | Apr 4 |
| Zone 10a | — | — | Jan 16 | Mar 17 |
| Zone 10b | — | — | Dec 24 | Feb 22 |
| Zone 11a | — | — | Dec 24 | Feb 22 |
| Zone 11b | — | — | Dec 11 | Feb 9 |
| Zone 12a | — | — | Nov 27 | Jan 26 |
| Zone 12b | — | — | Nov 27 | Jan 26 |
| Zone 13a | — | — | Nov 27 | Jan 26 |
| Zone 13b | — | — | Nov 27 | Jan 26 |
Frequently Asked Questions
How long does it take to grow Black Radish?
Black Radish takes approximately 60 days from planting to harvest.
How much sun does Black Radish need?
Black Radish requires full sun (6+ hours direct sunlight per day).
How far apart should I plant Black Radish?
Plant Black Radish at 4/sqft (6" apart) using square foot gardening spacing.
Can Black Radish survive frost?
Black Radish is tolerant of light frost.
How long does Black Radish take to germinate?
Black Radish seeds germinate in 3-7 days at an optimal temperature of 65°F.
Plan Your Black Radish Garden
Track Black Radish from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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