When to plant Radishes

The planting dates depend on your average frost dates. Enter a ZIP code to get yours, or read the USDA table below.

Earliest safe spring planting dates: radishes
Average last freezePlant
Jan 30Jan 1 – Apr 1
Feb 8Jan 1 – Apr 1
Feb 18Jan 1 – Apr 1
Feb 28Jan 1 – Apr 1
Mar 10Jan 1 – Apr 15
Mar 20Jan 20 – May 1
Mar 30Feb 15 – May 1
Apr 10Mar 1 – May 1
Apr 20Mar 10 – May 10
Apr 30Mar 20 – May 10
May 10Apr 1 – June 1
May 20Apr 15 – June 15
May 30May 1 – June 15
June 10May 15 – June 1
Latest safe fall planting dates: radishes
Average first freezePlant by
Aug 30May 1 – July 15
Sept 10May 1 – Aug 1
Sept 20June 1 – Aug 15
Sept 30July 1 – Sept 1
Oct 10July 15 – Sept 15
Oct 20Aug 1 – Oct 1
Oct 30Aug 15 – Oct 15
Nov 10Sept 1 – Nov 15
Nov 20Sept 1 – Dec 1
Nov 30Sept 1 – Dec 31
Dec 10Aug 1 – Sept 15
Dec 20Oct 1 – Dec 31

Source: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” tables 4 and 5. The bulletin scan.

Radishes by state