Blog

When to plant Soybeans in Thomas County County,

Soybeans planted in Thomas County County between March 11 and April 1 matures in 120 days — well before the November 22 first frost.

When to Plant Soybeans in Thomas County, GA

Soybeans (edamame) are a high-protein legume that fixes nitrogen in the soil. Fresh green soybeans harvested at the edamame stage are a nutritious snack.

Thomas County, Georgia is in USDA Zone 9a. The average last spring frost is March 4 and the first fall frost is November 22, giving you a growing season of approximately 263 days.

At an elevation of 302 feet, Thomas County receives approximately 58.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Soybeans may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Soybeans, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Soybeans root diseases.

Thomas County, GA (Zone 9a) Long season
263 days
Last Spring Frost March 4
263 growing days
First Fall Frost November 22
Share this guide:

Thomas County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Monthly Watering Guide for Soybeans

Soybeans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Soybeans Needs Rainfall You Supplement Action
Jan 4.9" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 4.3" 6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.6" 0" ✅ Rainfall sufficient
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 4.6" 0" ✅ Rainfall sufficient
Jul 4.3" 6" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.7" 0" ✅ Rainfall sufficient
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 4.9" 0" ✅ Rainfall sufficient
Dec 4.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Thomas County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Soybeans Planting Timeline — Thomas County, GA

Soybeans Planting Calendar

Activity When Date Range
Direct Sow March 11 Mar 11 – Apr 1
Harvest June 3 Jun 3 – Jul 29

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April Direct Sow
May
June Harvest
July Harvest
August
September
October
November
December
Share this guide:

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 9a

📆 Growing Season

263 days in Thomas County

Growing Tips for Thomas County

Direct sow after soil warms to 60F. Plant in blocks rather than rows for better pollination. Harvest for edamame when pods are plump and bright green.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Soybeans in Thomas County, GA?

Thomas County is in Zone 9a with an average last frost of March 4. Plan your Soybeans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Thomas County, GA?

Thomas County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 4 and first fall frost is November 22.

When should I plant Soybeans in Thomas County County, ?

In Thomas County County, , plant Soybeans after the last frost (around March 4) and before the first frost (around November 22). Best results when soil holds above 50°F.

What growing zone is Thomas County County, for Soybeans?

Thomas County County sits in USDA Zone 9a. Soybeans grows reliably in zones 3a through 10b, so it's a good fit here.

Can Soybeans grow in Thomas County County's climate?

Yes — Soybeans grows well in Thomas County County's temperate climate. Thomas County County averages a 263-day frost-free season, with last frost around March 4 and first frost around November 22.

🌱

Your Thomas County Garden Planner — Free

A 22-page printable planner built for Thomas County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Thomas County, GA. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.