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When to Plant Microgreens in Coffey County, KS

Coffey County, Kansas Zone 6b May

Your May game plan for Coffey County, Kansas

Your Coffey County, Kansas garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost April 11
Avg. first frost October 24
Soil temp (4") 63°F
Watering Low
Pest pressure Low
Daylight 14.1 hrs
  1. Get microgreens seeds going inside

    These need a head start before your last frost (April 11). Sow into cells now so you're ready to transplant in a few weeks.

  2. It's harvest week for microgreens

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

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Microgreens are young seedlings of vegetables and herbs harvested at the cotyledon or first true leaf stage. They pack concentrated flavors and nutrients in a tiny package.

Coffey County, Kansas is in USDA Zone 6b. The average last spring frost is April 11 and the first fall frost is October 24, giving you a growing season of approximately 196 days.

At an elevation of 466 feet, Coffey County receives approximately 27.7 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Microgreens during the growing season.

Coffey County, KS (Zone 6b) Moderate season
196 days
Last Spring Frost April 11
196 growing days
First Fall Frost October 24

Coffey County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (160 days to spare)
Start indoors: Mar 1 Transplant: Apr 5 🍅 Harvest: Apr 12 – May 10
Recommended (50%) ✓ Fits season (161 days to spare)
Start indoors: Mar 7 Transplant: Apr 11 🍅 Harvest: Apr 18 – May 16
Safe Start (90%) ✓ Fits season (166 days to spare)
Start indoors: Mar 18 Transplant: Apr 22 🍅 Harvest: Apr 29 – May 27

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 Coffey County

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

Soil pH

Your soil pH (6.5–7.7) is more alkaline than Microgreens prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Coffey County is excellent for Microgreens — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.8%). Annual compost additions will help Microgreens.

How to Plant Microgreens

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Microgreens

38
successive plantings in your 196-day season

Sow every 0.7 weeks. Last sowing by Oct 03 to harvest before frost.

For a dedicated fall crop, sow by Aug 15.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 851 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Microgreens

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

Month Microgreens Needs Rainfall You Supplement Action
Jan 0.7" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 1.7" 0" ❄️ Dormant
Apr 4.3" 3.1" 1.2" 💧 Light watering
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 3.4" 0.9" 💧 Light watering
Aug 4.3" 3.5" 0.8" 💧 Light watering
Sep 4.3" 2.9" 1.4" 💧 Light watering
Oct 4.3" 1.6" 2.7" 🚿 Regular watering
Nov 1" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

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

Microgreens 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.

Microgreens needs ~214 GDD — county provides 2,989 GDD Excellent fit

Microgreens Planting Timeline — Coffey County, KS

Microgreens Planting Calendar

Activity When Date Range
Start Indoors March 7 Mar 7 – Mar 21
Transplant Outdoors April 11 Apr 11 – Apr 25
Direct Sow March 28 Mar 28 – Apr 18
Harvest April 18 Apr 18 – May 16
Fall Sowing August 15 Aug 15 – Aug 29

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow Harvest
May Harvest
June
July
August Fall Sowing
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

7–21 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

196 days in Coffey County

Growing Tips for Microgreens in Coffey County

Direct sow Microgreens outdoors after April 11 in Coffey County when soil has warmed and frost danger has passed.

Your generous 196.0-day season in Coffey County allows multiple plantings of Microgreens. Sow every 3.0 days for continuous harvest.

General growing tips

Sow seeds densely on shallow trays of moist growing medium. Cover until germination, then provide light. Harvest with scissors when 1-3 inches tall. Grow year-round indoors.

Frequently Asked Questions

When should I plant Microgreens in Coffey County, KS?

Coffey County is in Zone 6b with an average last frost of April 11. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Coffey County, KS?

Coffey County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 11 and first fall frost is October 24.

🌱

Your Coffey County Garden Planner — Free

A 24-page printable planner built for Coffey 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 Coffey County, KS. 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.