When to plant Soybeans

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: soybeans
Average last freezePlant
Jan 30Mar 1 – June 30
Feb 8Mar 1 – June 30
Feb 18Mar 10 – June 30
Feb 28Mar 20 – June 30
Mar 10Apr 10 – June 30
Mar 20Apr 10 – June 30
Mar 30Apr 20 – June 30
Apr 10May 1 – June 30
Apr 20May 10 – June 20
Apr 30May 15 – June 15
May 10May 25 – June 10
May 20Not listed
May 30Not listed
June 10Not listed
Latest safe fall planting dates: soybeans
Average first freezePlant by
Aug 30Not listed
Sept 10Not listed
Sept 20Not listed
Sept 30May 25 – June 10
Oct 10June 1 – 25
Oct 20June 1 – July 5
Oct 30June 1 – July 15
Nov 10June 1 – July 25
Nov 20June 1 – July 30
Nov 30June 1 – July 30
Dec 10June 1 – July 30
Dec 20June 1 – July 30

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