When to Plant Edamame in Bennington County, VT
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.
Bennington County, Vermont is in USDA Zone 5a. The average last spring frost is May 12 and the first fall frost is October 5, giving you a growing season of approximately 146 days.
At an elevation of 1,063 feet, Bennington County receives approximately 44.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Edamame during the growing season.
Bennington County Soil Profile
Soil Type
Silt Loam
Soil pH
5-6.6
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 Bennington County
How your county's soil matches Edamame's growing requirements.
Soil pH
Your soil pH (5.0–6.6) is more acidic than Edamame prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Bennington County is excellent for Edamame — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.6%). Annual compost additions will help Edamame.
How to Plant Edamame
Succession Planting Edamame
Sow every 8.6 weeks. Last sowing by Jun 27 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 | — | 3" | 0" | ❄️ Dormant |
| Feb | — | 3.1" | 0" | ❄️ Dormant |
| Mar | — | 3.7" | 0" | ❄️ Dormant |
| Apr | — | 3.9" | 0" | ❄️ Dormant |
| May | 3.9" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 4" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 4.3" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 4" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 3.7" | 0.2" | 💧 Light watering |
| Oct | 3.9" | 3.7" | 0.2" | 💧 Light watering |
| Nov | — | 3.5" | 0" | ❄️ Dormant |
| Dec | — | 3.5" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Bennington 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 — Bennington County, VT
Edamame Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 19 | May 19 – Jun 9 |
| Harvest | August 4 | Aug 4 – Sep 15 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | Direct Sow |
| July | — |
| August | Harvest |
| September | Harvest |
| 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_acidic
🗺️ USDA Zone
Zone 5a
📆 Growing Season
146 days in Bennington County
Growing Tips for Edamame in Bennington County
Direct sow Edamame outdoors after May 12 in Bennington County when soil has warmed and frost danger has passed.
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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Check more plant combinations with our Companion Planting Checker →
Edamame in Other Locations
Frequently Asked Questions
When should I plant Edamame in Bennington County, VT?
Bennington County is in Zone 5a with an average last frost of May 12. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.
What planting zone is Bennington County, VT?
Bennington County, Vermont is in USDA Hardiness Zone 5a. The average last spring frost is May 12 and first fall frost is October 5.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Bennington County gardeners in Zone 5a organize planting dates, track what's growing, and never miss a planting window.
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