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When to Plant Edamame in Jeff Davis County, TX

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.

Jeff Davis County, Texas is in USDA Zone 7b. The average last spring frost is April 3 and the first fall frost is November 1, giving you a growing season of approximately 212 days.

At an elevation of 4,298 feet, Jeff Davis County receives approximately 52.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Edamame may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Edamame will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Edamame root diseases.

Jeff Davis County, TX (Zone 7b) Long season
212 days
Last Spring Frost April 3
212 growing days
First Fall Frost November 1

Jeff Davis County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Transplant: Mar 20 🍅 Harvest: Jun 5 – Jul 17
Recommended (50%) ✓ Fits season (93 days to spare)
Transplant: Apr 3 🍅 Harvest: Jun 19 – Jul 31
Safe Start (90%) ✓ Fits season (92 days to spare)
Transplant: Apr 22 🍅 Harvest: Jul 8 – Aug 19

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 593 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Edamame needs ~1,925 GDD — county provides 4,664 GDD Excellent fit

Edamame Planting Timeline โ€” Jeff Davis County, TX

Edamame Planting Calendar

Activity When Date Range
Direct Sow April 10 Apr 10 โ€“ May 1
Harvest June 26 Jun 26 โ€“ Aug 7

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

75โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

212 days

Growing Tips for Jeff Davis County

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

  • Onion
  • Garlic

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Frequently Asked Questions

When should I plant Edamame in Jeff Davis County, TX?

Jeff Davis County is in Zone 7b with an average last frost of April 3. Plan your Edamame planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Jeff Davis County, TX?

Jeff Davis County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is April 3 and first fall frost is November 1.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Jeff Davis County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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