When to plant green beans (bush) in USDA Zone 8b

Plan your green beans (bush) 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.

Charleston SC, Savannah, Mobile, Austin, Jacksonville. Average last spring frost March 15, first fall frost November 15 — a 245-day frost-free season.

Zone fit: excellent
Green beans (bush) is well suited to Zone 8b. Standard planting dates work with minor adjustments for microclimates.

Key dates

Direct-seed outdoors
March 15 – April 5
Expected first harvest
May 16 – June 13
Fall planting window
August 30 – September 20
Fall harvest window
October 31 – November 28

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
4″
Row spacing
24″
Seed depth
1″
Soil temperature
65–85°F
Frost tolerance
tender
Days to harvest
55 days

Grower notes for Zone 8b

Do not soak seed — beans rot easily. Successive plantings every 2 weeks until 60 days before first frost.

Plant near: corn, cucumbers, carrots

Keep away from: onions, garlic

Other legumes for Zone 8b

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.