Growing Turnips in Zone 3B

Turnips are a fast, cool-season root vegetable that’s often overlooked. Baby turnips are tender and mild; larger ones are earthier and better roasted.

Zone 3B 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 6 weeks before last frost or in late summer for fall harvest
• Thin to 4-6 inches apart — crowded plants don’t form good roots
• Harvest small (2-3 inches) for sweetest flavor
• The greens are edible and delicious sautéed with garlic
• Fall-sown turnips taste sweeter after a light frost

Companion Planting

Good companions: peas, onions, garlic

Avoid planting near: mustard relatives (can share pests)

Harvest Timeline

35-60 days from seed; best at 2-3 inches in diameter

About Zone 3B

USDA Hardiness Zone 3B has an average last spring frost around May 15 and first fall frost around Sep 15. 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.