Blog

When to Plant Edamame in Potter County, TX

Potter County, Texas Zone 7a May

Your May gardening checklist

We've pulled the most time-sensitive tasks for Potter County, Texas this May and put them front and centre. Tackle them in order.

Avg. last frost April 15
Avg. first frost October 24
Soil temp (4") 59°F
Watering Critical
Pest pressure Moderate
Daylight 13.9 hrs

Instant PDF download. No spam, unsubscribe any time.

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.

Potter County, Texas is in USDA Zone 7a. The average last spring frost is April 15 and the first fall frost is October 24, giving you a growing season of approximately 192 days.

At an elevation of 3,438 feet, Potter County receives approximately 52.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 93°F, providing good warmth for Edamame during the growing season. Sandy soil warms quickly in spring — great for early planting — 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.

Potter County, TX (Zone 7a) Moderate season
192 days
Last Spring Frost April 15
192 growing days
First Fall Frost October 24

Potter County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Transplant: Apr 9 🍅 Harvest: Jun 25 – Aug 6
Recommended (50%) ✓ Fits season (73 days to spare)
Transplant: Apr 15 🍅 Harvest: Jul 1 – Aug 12
Safe Start (90%) ✓ Fits season (68 days to spare)
Transplant: May 2 🍅 Harvest: Jul 18 – Aug 29

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 Potter County

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

Soil pH

Your soil pH (7.4–8.7) is more alkaline than Edamame prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Edamame.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Edamame.

How to Plant Edamame

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

Succession Planting Edamame

2
successive plantings in your 192-day season

Sow every 8.6 weeks. Last sowing by Jul 16 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.1″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 53 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — 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 3.5" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 3.2" 0" ❄️ Dormant
Apr 3.9" 1.6" 2.3" 🚿 Regular watering
May 3.9" 1.1" 2.8" 🚿 Regular watering
Jun 3.9" 1.8" 2.1" 🚿 Regular watering
Jul 3.9" 10.3" 0" ✅ Rainfall sufficient
Aug 3.9" 9.9" 0" ✅ Rainfall sufficient
Sep 3.9" 6.8" 0" ✅ Rainfall sufficient
Oct 3.9" 4.6" 0" ✅ Rainfall sufficient
Nov 3.3" 0" ❄️ Dormant
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Potter 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 needs ~1,728 GDD — county provides 3,792 GDD Excellent fit

Edamame Planting Timeline — Potter County, TX

Edamame Planting Calendar

Activity When Date Range
Direct Sow April 22 Apr 22 – May 13
Harvest July 8 Jul 8 – Aug 19

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7a

📆 Growing Season

192 days in Potter County

Growing Tips for Edamame in Potter County

Direct sow Edamame outdoors after April 15 in Potter County when soil has warmed and frost danger has passed.

Sandy soil in Potter County dries quickly — mulch Edamame with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Potter County, TX?

Potter County is in Zone 7a with an average last frost of April 15. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.

What planting zone is Potter County, TX?

Potter County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 15 and first fall frost is October 24.

🌱

Your Potter County Garden Planner — Free

A 24-page printable planner built for Potter County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.