When to Plant Edamame in Jefferson Davis County, MS
Jefferson Davis County, Mississippi gardeners: here's your May plan
Your garden in Jefferson Davis County, Mississippi is working on a schedule, even when you're not. Here's where you should be this May.
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Collect edamame at their peak
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
Looking ahead to June
- First harvests: edamame
Edamame are soybeans harvested at the immature green stage for a sweet, nutty snack. They are high in protein and easy to grow in warm climates.
Jefferson Davis County, Mississippi is in USDA Zone 8b. The average last spring frost is March 8 and the first fall frost is November 19, giving you a growing season of approximately 256 days.
At an elevation of 126 feet, Jefferson Davis County receives approximately 59.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Edamame during the growing season. Clay soil retains moisture well for Edamame, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Edamame root diseases.
Jefferson Davis County Soil Profile
Soil Type
Clay Loam
Soil pH
5.6-6.4
Drainage
Well Drained
Plant Planting Risk Windows
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 Jefferson Davis County
How your county's soil matches Edamame's growing requirements.
Soil pH
Your soil pH (5.6–6.4) overlaps with Edamame's range (6.0–7.0), though not a perfect match.
Soil Texture
The clay loam soil in Jefferson Davis County is excellent for Edamame — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.8%). Annual compost additions will help Edamame.
How to Plant Edamame
Succession Planting Edamame
Sow every 8.6 weeks. Last sowing by Aug 11 to harvest before frost.
Plant Water Budget
Monthly Watering Guide for Edamame
Edamame needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.
| Month | Edamame Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 5.3" | 0" | ❄️ Dormant |
| Feb | — | 5" | 0" | ❄️ Dormant |
| Mar | 3.9" | 6" | 0" | ✅ Rainfall sufficient |
| Apr | 3.9" | 4.1" | 0" | ✅ Rainfall sufficient |
| May | 3.9" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 5" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 5.7" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 6.4" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 4.7" | 0" | ✅ Rainfall sufficient |
| Oct | 3.9" | 3.9" | 0" | ✅ Rainfall sufficient |
| Nov | 3.9" | 3.9" | 0" | ✅ Rainfall sufficient |
| Dec | — | 5.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Jefferson Davis County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Edamame 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" — every day above 50°F 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.
Edamame Planting Timeline — Jefferson Davis County, MS
Edamame Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 15 | Mar 15 – Apr 5 |
| Harvest | May 31 | May 31 – Jul 12 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow |
| April | Direct Sow |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · Natural rainfall sufficient
📅 Days to Maturity
75–100 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8b
📆 Growing Season
256 days in Jefferson Davis County
Growing Tips for Edamame in Jefferson Davis County
Direct sow Edamame outdoors after March 08 in Jefferson Davis County when soil has warmed and frost danger has passed.
With Jefferson Davis County's clay soil (31% clay), work in 3-4 inches of compost before planting Edamame. Avoid tilling when soil is wet to prevent compaction.
Common pests for Edamame 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 is warm. Do not over-fertilize with nitrogen. Harvest when pods are plump and bright green but before they start to yellow. Steam or boil pods before eating.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Edamame in Other Locations
Frequently Asked Questions
When should I plant Edamame in Jefferson Davis County, MS?
Jefferson Davis County is in Zone 8b with an average last frost of March 8. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.
What planting zone is Jefferson Davis County, MS?
Jefferson Davis County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 8 and first fall frost is November 19.
Your Jefferson Davis County Garden Planner — Free
A 24-page printable planner built for Jefferson Davis County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.