Growing Zucchini in Zone 4B

Zucchini is one of the most productive garden plants — a few plants will feed a family all summer.

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

• One of the easiest warm-season crops to grow
• 2-3 plants are enough for most families
• Harvest at 6-8 inches for tender flesh and fewer seeds
• Hand-pollinate if fruit is rotting before maturing
• Succession plant every 3-4 weeks for continuous harvest

Companion Planting

Good companions: corn, beans, nasturtiums, radishes

Avoid planting near: potatoes, pumpkins (cross-pollination)

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.