How to grow radish
Raphanus sativus
Get your exact dates
The windows below are relative to your frost dates. Enter your ZIP for the calendar dates.
Open the planting calendarWhen to plant radish
Direct sow3 weeks before your last spring frost to 2 weeks before your last spring frost
Growing conditions
- Days to maturity
- 25 to 45 (from sowing)
- Spacing
- 1 to 2 in apart, rows 10 in
- Planting depth
- 0.5 in
- Sun
- Full sun
- Water
- 1 in per week
- Soil pH
- 6 to 7
Common problems
- flea beetles
- cabbage maggots
- wireworms
- clubroot
- root cracking
Radish by hardiness zone
Planting dates for a typical location in each zone:
Sources
- Utah State University Extension: How to Grow Radishes in Your Home Garden
- University of Minnesota Extension: Growing radishes in home gardens
Last updated 2026-06-11.