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When to Plant Soybeans in Wakulla County, FL

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.

Wakulla County, Florida is in USDA Zone 8b. The average last spring frost is March 13 and the first fall frost is November 22, giving you a growing season of approximately 254 days.

At an elevation of 375 feet, Wakulla County receives approximately 48.4 inches of rainfall annually with predominantly sand soil. Summer highs average 95ยฐF, so Soybeans may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Soybeans will need more frequent watering and organic matter to retain nutrients.

Wakulla County, FL (Zone 8b) Long season
254 days
Last Spring Frost March 13
254 growing days
First Fall Frost November 22

Wakulla County Soil Profile

Soil Type

Sand

Soil pH

4.9-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Transplant: Mar 6 🍅 Harvest: May 29 – Jul 24
Recommended (50%) ✓ Fits season (114 days to spare)
Transplant: Mar 13 🍅 Harvest: Jun 5 – Jul 31
Safe Start (90%) ✓ Fits season (107 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 30 – Aug 25

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Wakulla County

How your county's soil matches Soybeans's growing requirements.

Soil pH

Your soil pH (4.9โ€“5.9) is more acidic than Soybeans prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Wakulla County warms quickly in spring but drains fast. Soybeans will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Soybeans.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Soybeans.

How to Plant Soybeans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Soybeans

3
successive plantings in your 254-day season

Sow every 9.1 weeks. Last sowing by Jul 25 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,130 gal / 100 sq ft

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 โ€” 2.1" 0" โ„๏ธ Dormant
Feb โ€” 2.5" 0" โ„๏ธ Dormant
Mar 4.3" 2.6" 1.7" ๐Ÿ’ง Light watering
Apr 4.3" 2.3" 2" ๐Ÿ’ง Light watering
May 4.3" 3" 1.3" ๐Ÿ’ง Light watering
Jun 4.3" 7.1" 0" โœ… Rainfall sufficient
Jul 4.3" 6.9" 0" โœ… Rainfall sufficient
Aug 4.3" 7.2" 0" โœ… Rainfall sufficient
Sep 4.3" 6.8" 0" โœ… Rainfall sufficient
Oct 4.3" 4" 0.3" ๐Ÿ’ง Light watering
Nov 4.3" 1.8" 2.5" ๐Ÿšฟ Regular watering
Dec โ€” 2.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Wakulla County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Soybeans Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Soybeans needs ~2,125 GDD — county provides 5,397 GDD Excellent fit

Soybeans Planting Timeline โ€” Wakulla County, FL

Soybeans Planting Calendar

Activity When Date Range
Direct Sow March 20 Mar 20 โ€“ Apr 10
Harvest June 12 Jun 12 โ€“ Aug 7

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Direct Sow
April Direct Sow
May โ€”
June Harvest
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

80โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

254 days in Wakulla County

Growing Tips for Soybeans in Wakulla County

Direct sow Soybeans outdoors after March 13 in Wakulla County when soil has warmed and frost danger has passed.

Sandy soil in Wakulla County dries quickly โ€” mulch Soybeans with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Soybeans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

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 Wakulla County, FL?

Wakulla County is in Zone 8b with an average last frost of March 13. Plan your Soybeans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wakulla County, FL?

Wakulla County, Florida is in USDA Hardiness Zone 8b. The average last spring frost is March 13 and first fall frost is November 22.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wakulla County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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