When to plant winter squash in USDA Zone 9a

Plan your winter squash 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.

Gainesville FL, Houston, New Orleans, southern GA coast. Average last spring frost February 25, first fall frost December 1 — a 279-day frost-free season.

Zone fit: excellent
Winter squash is well suited to Zone 9a. Standard planting dates work with minor adjustments for microclimates.

Key dates

Direct-seed outdoors
March 4 – March 25
Expected first harvest
June 19 – July 17

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
36″
Row spacing
72″
Seed depth
1″
Soil temperature
70–90°F
Frost tolerance
tender
Days to harvest
100 days

Grower notes for Zone 9a

Cure fruit at 80–85°F for 10 days after harvest to extend storage. Plant early enough to mature before first frost.

Plant near: corn, beans

Keep away from: potatoes

Other cucurbits for Zone 9a

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.