Growing Squash (Summer) in Zone 4B

Summer squash including yellow squash and pattypan grows fast and produces prolifically in warm weather.

Zone 4B has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.

Top Growing Tips

• Direct sow after all frost danger has passed
• Space plants 3-4 feet apart for air circulation
• Harvest when small (6-8 inches) for best flavor
• Watch for squash vine borers — wrap stems with foil
• Pick every 2 days to keep plants producing

Companion Planting

Good companions: corn, beans (Three Sisters), nasturtiums, marigolds

Avoid planting near: potatoes

Harvest Timeline

45-55 days from seed

About Zone 4B

USDA Hardiness Zone 4B has an average last spring frost around May 1 and first fall frost around Oct 1. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.