When to Plant Edamame in Falls 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.
Falls County, Texas is in USDA Zone 8a. The average last spring frost is March 17 and the first fall frost is November 13, giving you a growing season of approximately 241 days.
At an elevation of 66 feet, Falls County receives approximately 66.1 inches of rainfall annually with predominantly clay soil. Summer highs average 97°F, so Edamame may need afternoon shade and extra watering during peak heat. 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.
Falls County Soil Profile
Soil Type
Clay
Soil pH
7.1-8.2
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 Falls County
How your county's soil matches Edamame's growing requirements.
Soil pH
Your soil pH (7.1–8.2) is more alkaline than Edamame prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Your clay soil in Falls County is workable for Edamame. Add compost annually to improve structure.
Organic Matter
Organic matter is moderate (2.6%). Annual compost additions will help Edamame.
How to Plant Edamame
Succession Planting Edamame
Sow every 8.6 weeks. Last sowing by Aug 05 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 | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 2" | 0" | ❄️ Dormant |
| Mar | 3.9" | 4.7" | 0" | ✅ Rainfall sufficient |
| Apr | 3.9" | 6.7" | 0" | ✅ Rainfall sufficient |
| May | 3.9" | 10" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 9.5" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 9.2" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 7.4" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 7" | 0" | ✅ Rainfall sufficient |
| Oct | 3.9" | 4.1" | 0" | ✅ Rainfall sufficient |
| Nov | 3.9" | 2.2" | 1.7" | 💧 Light watering |
| Dec | — | 1.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Falls 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 — Falls County, TX
Edamame Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 24 | Mar 24 – Apr 14 |
| Harvest | June 9 | Jun 9 – Jul 21 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow |
| April | Direct Sow |
| May | — |
| 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: too_alkaline
🗺️ USDA Zone
Zone 8a
📆 Growing Season
241 days in Falls County
Growing Tips for Edamame in Falls County
Direct sow Edamame outdoors after March 17 in Falls County when soil has warmed and frost danger has passed.
With Falls County's clay soil (36% clay), work in 3-4 inches of compost before planting Edamame. Avoid tilling when soil is wet to prevent compaction.
With summer highs reaching 97°F in Falls County, provide afternoon shade for Edamame and water deeply in the morning.
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
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Edamame in Other Locations
Frequently Asked Questions
When should I plant Edamame in Falls County, TX?
Falls County is in Zone 8a with an average last frost of March 17. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.
What planting zone is Falls County, TX?
Falls County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 17 and first fall frost is November 13.
Plan Your Garden with Confidence
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