When to plant Winter squash

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

Latest safe fall planting dates: winter squash
Average first freezePlant by
Aug 30Not listed
Sept 10Not listed
Sept 20May 20 – June 10
Sept 30June 1 – 15
Oct 10June 1 – July 1
Oct 20June 1 – July 1
Oct 30June 10 – July 10
Nov 10June 20 – July 20
Nov 20July 1 – Aug 1
Nov 30July 15 – Aug 15
Dec 10Aug 1 – Sept 1
Dec 20Aug 1 – Sept 1

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

Winter Squash by state