Radish Planting Guide
Fast-maturing root vegetable with crisp texture and peppery bite
Best Time and Place to Plant Radish
In USDA zone 7, the typical spring window is March 1 to May 1. Cooler zones usually plant later; warmer zones plant earlier.
Plant Radish in a spot with 4+ hours of direct sun, soil warmed to 40F to 70F, and enough room for 2 inches between plants and 12 inches between rows.
Planting Windows by Zone
| Zone | Spring | Fall |
|---|---|---|
| Zone 1 | May 1 to June 15 | August 1 to August 30 |
| Zone 2 | April 20 to June 10 | August 10 to September 15 |
| Zone 3 | April 10 to May 30 | August 15 to September 30 |
| Zone 4 | April 1 to May 20 | August 20 to October 1 |
| Zone 5 | March 20 to May 15 | August 25 to October 10 |
| Zone 6 | March 10 to May 10 | September 1 to October 20 |
| Zone 7 | March 1 to May 1 | September 10 to November 1 |
| Zone 8 | February 15 to April 20 | September 20 to November 15 |
| Zone 9 | February 1 to April 10 | October 1 to December 1 |
| Zone 10 | January 15 to March 30 | October 15 to December 15 |
| Zone 11 | Year-round to Year-round | Varies |
| Zone 12 | Year-round to Year-round | Varies |
| Zone 13 | Year-round to Year-round | Varies |
Spacing and Care
- Planting depth: 0.5 inches deep
- Spacing: 2 inches apart, 12 inches between rows
- Soil temperature: 40F to 70F
- Sunlight: 4+ hours
- Watering: Keep soil evenly moist to prevent cracking; water every 2-3 days
- Days to harvest: 25
Fertilization
- 5-10-10 Low Nitrogen synthetic: 1.5 lbs per 100 sq ft at planting
- Compost organic: 1-2 inches worked in before planting
Companion Plants
- Carrots
- Beets
- Lettuce
- Cucumbers
- Nasturtium
Avoid Planting Near
- Hyssop
Harvest Signs
- Root shoulder visible at soil surface at 0.75-1 inch size
- Feels firm when grasped
- Pull a test radish — if hollow or cracked, harvest all immediately
- Harvest before hot weather causes pithiness
FAQs
When should I plant Radish?
Radish planting depends on your USDA hardiness zone. In USDA zone 7, the typical spring window is March 1 to May 1. Cooler zones usually plant later; warmer zones plant earlier.
What is the best time of year to plant Radish?
The best time of year to plant Radish is when your zone planting window is open and soil temperatures are around 40F to 70F. In USDA zone 7, the typical spring window is March 1 to May 1. Cooler zones usually plant later; warmer zones plant earlier.
Where is the best place to plant Radish?
Plant Radish in a spot with 4+ hours of direct sun, soil warmed to 40F to 70F, and enough room for 2 inches between plants and 12 inches between rows.
How far apart should I plant Radish?
Plant Radish about 2 inches apart, with rows around 12 inches apart.
What grows well with Radish?
Radish is commonly paired with Carrots, Beets, Lettuce, Cucumbers, Nasturtium.