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When to Plant Edamame in Llano 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.

Llano County, Texas is in USDA Zone 8a. The average last spring frost is March 19 and the first fall frost is November 13, giving you a growing season of approximately 239 days.

At an elevation of 1,968 feet, Llano County receives approximately 50.4 inches of rainfall annually with predominantly loam soil. Summer highs average 92Β°F, providing good warmth for Edamame during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Edamame root diseases.

Llano County, TX (Zone 8a) Long season
239 days
Last Spring Frost March 19
239 growing days
First Fall Frost November 13

Llano County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.5

Drainage

Well Drained

Monthly Watering Guide for Edamame

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

Month Edamame Needs Rainfall You Supplement Action
Jan β€” 1.2" 0" ❄️ Dormant
Feb β€” 1.6" 0" ❄️ Dormant
Mar 4.3" 3.5" 0.8" πŸ’§ Light watering
Apr 4.3" 5" 0" βœ… Rainfall sufficient
May 4.3" 7" 0" βœ… Rainfall sufficient
Jun 4.3" 7.9" 0" βœ… Rainfall sufficient
Jul 4.3" 7" 0" βœ… Rainfall sufficient
Aug 4.3" 6.8" 0" βœ… Rainfall sufficient
Sep 4.3" 4.7" 0" βœ… Rainfall sufficient
Oct 4.3" 2.9" 1.4" πŸ’§ Light watering
Nov 4.3" 1.6" 2.7" 🚿 Regular watering
Dec β€” 1.3" 0" ❄️ Dormant

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

Edamame Planting Timeline β€” Llano County, TX

Edamame Planting Calendar

Activity When Date Range
Direct Sow March 26 Mar 26 – Apr 16
Harvest June 11 Jun 11 – Jul 23

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

75–100 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

239 days in Llano County

Growing Tips for Llano 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Edamame in Llano County, TX?

Llano County is in Zone 8a with an average last frost of March 19. Plan your Edamame planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Llano County, TX?

Llano County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 19 and first fall frost is November 13.

🌱

Plan Your Garden with Confidence

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