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When to Plant Edamame in Carson City, NV

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.

Carson City, Nevada is in USDA Zone 7a. The average last spring frost is May 12 and the first fall frost is October 10, giving you a growing season of approximately 151 days.

At an elevation of 2,716 feet, Carson City receives approximately 8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98ยฐF, so Edamame may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Edamame will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Edamame successfully. Mulch heavily to conserve soil moisture.

Carson City, NV (Zone 7a) Moderate season
151 days
Last Spring Frost May 12
151 growing days
First Fall Frost October 10

Carson City Soil Profile

Soil Type

Sandy Loam

Soil pH

7.1-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (36 days to spare)
Transplant: May 1 🍅 Harvest: Jul 17 – Aug 28
Recommended (50%) ✓ Fits season (32 days to spare)
Transplant: May 12 🍅 Harvest: Jul 28 – Sep 8
Safe Start (90%) ✓ Fits season (23 days to spare)
Transplant: Jun 6 🍅 Harvest: Aug 22 – Oct 3

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 Carson City

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

Soil pH

Your soil pH (7.1โ€“8.7) is more alkaline than Edamame prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

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 151-day season

Sow every 8.6 weeks. Last sowing by Jul 02 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.2″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,093 gal / 100 sq ft
Drought risk

Water stress score is 10/10 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€” 0.5" 0" โ„๏ธ Dormant
Feb โ€” 0.4" 0" โ„๏ธ Dormant
Mar โ€” 0.5" 0" โ„๏ธ Dormant
Apr โ€” 0.3" 0" โ„๏ธ Dormant
May 3.9" 0.2" 3.7" ๐Ÿšฟ Regular watering
Jun 3.9" 0.3" 3.6" ๐Ÿšฟ Regular watering
Jul 3.9" 1.4" 2.5" ๐Ÿšฟ Regular watering
Aug 3.9" 1.6" 2.3" ๐Ÿšฟ Regular watering
Sep 3.9" 1.1" 2.8" ๐Ÿšฟ Regular watering
Oct 3.9" 0.6" 3.3" ๐Ÿšฟ Regular watering
Nov โ€” 0.5" 0" โ„๏ธ Dormant
Dec โ€” 0.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Oct in Carson City). 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 ~2,056 GDD — county provides 3,548 GDD Excellent fit

Edamame Planting Timeline โ€” Carson City, NV

Edamame Planting Calendar

Activity When Date Range
Direct Sow May 19 May 19 โ€“ Jun 9
Harvest August 4 Aug 4 โ€“ Sep 15

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

75โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

151 days in Carson City

Growing Tips for Edamame in Carson City

Direct sow Edamame outdoors after May 12 in Carson City when soil has warmed and frost danger has passed.

Sandy soil in Carson City dries quickly โ€” mulch Edamame with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 98ยฐF in Carson City, 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.

Carson City receives only 8" of rain annually. Edamame needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

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 Carson City, NV?

Carson City is in Zone 7a with an average last frost of May 12. Plan your Edamame planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Carson City, NV?

Carson City, Nevada is in USDA Hardiness Zone 7a. The average last spring frost is May 12 and first fall frost is October 10.

๐ŸŒฑ

Plan Your Garden with Confidence

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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 Carson City, NV. Local conditions may vary. Last updated: April 2026.