When to plant brussels sprouts in USDA Zone 7b

Plan your brussels sprouts planting around local frost risk and soil temperature, then work backward from the harvest week your buyers need. The calendar below is a starting point, not a field-level weather forecast.

Raleigh, Greensboro, Richmond, Knoxville, Memphis. Average last spring frost April 8, first fall frost October 22 — a 197-day frost-free season.

Zone fit: excellent
Brussels sprouts is well suited to Zone 7b. Standard planting dates work with minor adjustments for microclimates.

Key dates

Start seeds indoors
February 18 – March 4
Transplant outdoors
March 18 – April 8
Expected first harvest
July 3 – July 31
Fall planting window
June 11 – July 2
Fall harvest window
September 26 – October 24

Windows are calculated from your zone's average frost dates. Adjust ±1 week for microclimates, elevation, and your own frost records.

Spacing and soil

Plant spacing
24″
Row spacing
36″
Seed depth
0.25″
Soil temperature
55–75°F
Frost tolerance
hardy
Days to harvest
100 days

Grower notes for Zone 7b

Fall-only crop in the Southeast. Top the plant 4 weeks before target harvest for uniform sprouts up the stem.

Plant near: onions, dill

Keep away from: strawberries

Other brassicas for Zone 7b

Same crop, other zones

Track your own plantings

BAU Farm Intelligence turns these windows into per-field tasks — indoor seed-start reminders, transplant dates, harvest projections — using your farm's actual frost history.