Summer squash planting calendar
When to plant summer squash — pick your state
Summer squash timing swings hard by climate — choose your state for sow, transplant, and harvest dates calibrated to its USDA zone and frost window.
Northeast
Southeast
Midwest
Southwest
West
Pacific
Common questions
When should I plant summer squash?
Summer squash (zucchini, yellow crookneck, pattypan) wants the same warm soil as cucumbers — 18 °C minimum at sowing depth. A single plant can outproduce a small family once it gets going, so don't over-plant. Because the right window depends on your local frost dates, pick your US state above for a calendar with exact sow, transplant, and harvest dates.
Does the best time to plant summer squash vary by state?
Yes — planting dates swing by several weeks across the US because each state sits in a different USDA zone with its own frost window. Every state page here gives summer squash dates calibrated to that state's climate.
How are these summer squash planting dates calculated?
Each state's dates come from that state's dominant USDA hardiness zone and NOAA average frost dates, then adjusted for summer squash's cold tolerance and days to maturity.