When to Plant Broccoli in North Dakota

Growing Broccoli in North Dakota: Complete Guide

Broccoli (Brassica oleracea var. italica) is a warm-season crop that needs a head start indoors before North Dakota's last frost. Most North Dakota gardeners begin seeds indoors around Friday, April 3, 2026 and move transplants outside around Friday, May 15, 2026, after the risk of frost has passed.

Because North Dakota stretches across 3 USDA hardiness zones (3b, 4a, 4b), planting windows can shift by as much as two to four weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 60 days to maturity, Broccoli needs the indoor head start that North Dakota's growing season requires. Starting indoors ensures you have strong transplants ready the moment outdoor conditions are right.

Broccoli requires full sun (6 hours) and regular (1-1.5 inches/week) moisture. Great Plains gardens face strong winds and variable moisture — windbreaks and drip irrigation help significantly.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of North Dakota.