When to Plant Zucchini in Zone 4
In USDA zone 4, start seeds indoors around April 24, transplant or plant outdoors May 29 to July 23, and expect your first harvest around July 23.
Zucchini planting calendar for USDA Zone 4
Start seeds indoors
Apr 24
Transplant outdoors
May 29
Projected first harvest
Jul 23
Most zucchini mature in about 50 to 55 days depending on the variety. Dates use USDA zone 4a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 4 means for zucchini
Average last spring frost
May 15
Average first fall frost
September 20
Those two dates are what set the schedule above. Zone 4 gives you roughly 128 frost-free days, and zucchini need about 50 to 55 days depending on the variety to mature.
Varieties to grow
2 varieties of zucchini in the HomeSown library. Tap any for its full grow guide.
Common problems with zucchini
What to watch for, with identification and treatment for each
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