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When to Plant Edamame in Bosque 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.

Bosque County, Texas is in USDA Zone 8a. The average last spring frost is March 14 and the first fall frost is November 16, giving you a growing season of approximately 247 days.

At an elevation of 1,846 feet, Bosque County receives approximately 64.5 inches of rainfall annually with predominantly clay soil. Summer highs average 93ยฐF, 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.

Bosque County, TX (Zone 8a) Long season
247 days
Last Spring Frost March 14
247 growing days
First Fall Frost November 16

Bosque County Soil Profile

Soil Type

Clay

Soil pH

6.8-7.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (129 days to spare)
Transplant: Mar 6 🍅 Harvest: May 22 – Jul 3
Recommended (50%) ✓ Fits season (128 days to spare)
Transplant: Mar 14 🍅 Harvest: May 30 – Jul 11
Safe Start (90%) ✓ Fits season (118 days to spare)
Transplant: Apr 8 🍅 Harvest: Jun 24 – Aug 5

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 Bosque County

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

Soil pH

Your soil pH (6.8โ€“7.9) is more alkaline than Edamame prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (42% clay) in Bosque County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Edamame.

How to Plant Edamame

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

Succession Planting Edamame

3
successive plantings in your 247-day season

Sow every 8.6 weeks. Last sowing by Aug 08 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

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

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 โ€” 1.5" 0" โ„๏ธ Dormant
Feb โ€” 2.2" 0" โ„๏ธ Dormant
Mar 3.9" 3.9" 0" โœ… Rainfall sufficient
Apr 3.9" 6.8" 0" โœ… Rainfall sufficient
May 3.9" 8.2" 0" โœ… Rainfall sufficient
Jun 3.9" 10.7" 0" โœ… Rainfall sufficient
Jul 3.9" 9.1" 0" โœ… Rainfall sufficient
Aug 3.9" 7.9" 0" โœ… Rainfall sufficient
Sep 3.9" 6.7" 0" โœ… Rainfall sufficient
Oct 3.9" 4.1" 0" โœ… Rainfall sufficient
Nov 3.9" 1.8" 2.1" ๐Ÿšฟ Regular watering
Dec โ€” 1.7" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Bosque County). Supplement amounts are based on average rainfall โ€” 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" 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.

Edamame needs ~1,728 GDD — county provides 4,878 GDD Excellent fit

Edamame Planting Timeline โ€” Bosque County, TX

Edamame Planting Calendar

Activity When Date Range
Direct Sow March 21 Mar 21 โ€“ Apr 11
Harvest June 6 Jun 6 โ€“ Jul 18

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 โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

75โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

247 days in Bosque County

Growing Tips for Edamame in Bosque County

Direct sow Edamame outdoors after March 14 in Bosque County when soil has warmed and frost danger has passed.

With Bosque County's clay soil (42% 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

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Edamame in Bosque County, TX?

Bosque County is in Zone 8a with an average last frost of March 14. Plan your Edamame planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Bosque County, TX?

Bosque County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 14 and first fall frost is November 16.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Bosque County gardeners in Zone 8a 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 Bosque County, TX. Local conditions may vary. Last updated: April 2026.