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When to plant Soybeans in Gray County County,

For Gray County County, gardeners: plant Soybeans April 25 through May 16 once soil reads 50°F.

When to Plant Soybeans in Gray County, KS

Soybeans (edamame) are a high-protein legume that fixes nitrogen in the soil. Fresh green soybeans harvested at the edamame stage are a nutritious snack.

Gray County, Kansas is in USDA Zone 6b. The average last spring frost is April 18 and the first fall frost is October 19, giving you a growing season of approximately 184 days.

At an elevation of 903 feet, Gray County receives approximately 30.6 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Soybeans during the growing season.

Gray County, KS (Zone 6b) Moderate season
184 days
Last Spring Frost April 18
184 growing days
First Fall Frost October 19
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Gray County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.8

Drainage

Well Drained

Monthly Watering Guide for Soybeans

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

Month Soybeans Needs Rainfall You Supplement Action
Jan 2" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 4.3" 3.3" 1" 💧 Light watering
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 2" 2.3" 🚿 Regular watering
Jul 4.3" 2.9" 1.4" 💧 Light watering
Aug 4.3" 3.1" 1.2" 💧 Light watering
Sep 4.3" 2.4" 1.9" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 1.8" 0" ❄️ Dormant
Dec 1.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Gray County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Soybeans Planting Timeline — Gray County, KS

Soybeans Planting Calendar

Activity When Date Range
Direct Sow April 25 Apr 25 – May 16
Harvest July 18 Jul 18 – Sep 12

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 Harvest
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

184 days in Gray County

Growing Tips for Gray County

Direct sow after soil warms to 60F. Plant in blocks rather than rows for better pollination. Harvest for edamame when pods are plump and bright green.

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 Soybeans in Gray County, KS?

Gray County is in Zone 6b with an average last frost of April 18. Plan your Soybeans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gray County, KS?

Gray County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 18 and first fall frost is October 19.

When should I plant Soybeans in Gray County County, ?

In Gray County County, , plant Soybeans after the last frost (around April 18) and before the first frost (around October 19). Best results when soil holds above 50°F.

What growing zone is Gray County County, for Soybeans?

Gray County County sits in USDA Zone 6b. Soybeans grows reliably in zones 3a through 10b, so it's a good fit here.

Can Soybeans grow in Gray County County's climate?

Yes — Soybeans grows well in Gray County County's temperate climate. Gray County County averages a 184-day frost-free season, with last frost around April 18 and first frost around October 19.

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Your Gray County Garden Planner — Free

A 22-page printable planner built for Gray County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Gray County, KS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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