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When to plant Microgreens in Webster County, MO

Plant Microgreens in Webster County, when soil hits 50°F — usually March 28. Continue planting through April 18 for the spring crop. A second sowing from August 13 to August 27 extends the harvest into fall.

When to Plant Microgreens in Webster County, MO

Webster County, Missouri Zone 6b June

Your June game plan for Webster County, Missouri

If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.

Avg. last frost April 11
Avg. first frost October 22
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 14.6 hrs

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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.

Webster County, Missouri is in USDA Zone 6b. The average last spring frost is April 11 and the first fall frost is October 22, giving you a growing season of approximately 194 days.

At an elevation of 1,274 feet, Webster County receives approximately 38.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Microgreens during the growing season.

Webster County, MO (Zone 6b) Moderate season
194 days
Last Spring Frost April 11
194 growing days
First Fall Frost October 22

Webster County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.6

Drainage

Well Drained

Microgreens Planting Risk Windows

Early Start (70% safe) ✓ Fits season (159 days to spare)
Start indoors: Mar 1 Transplant: Apr 5 🍅 Harvest: Apr 12 – May 10
Recommended (50%) ✓ Fits season (159 days to spare)
Start indoors: Mar 7 Transplant: Apr 11 🍅 Harvest: Apr 18 – May 16
Safe Start (90%) ✓ Fits season (161 days to spare)
Start indoors: Mar 19 Transplant: Apr 23 🍅 Harvest: Apr 30 – May 28

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 Webster County

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

Soil pH

Your soil pH (5.6–6.6) overlaps with Microgreens's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Microgreens.

Organic Matter

Organic matter is moderate (2.6%). 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 194-day season

Sow every 0.7 weeks. Last sowing by Oct 01 to harvest before frost.

For a dedicated fall crop, sow by Aug 13.

Microgreens Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 1.6" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.8" 0" ❄️ Dormant
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 5" 0" ✅ Rainfall sufficient
Jun 4.3" 4.2" 0.1" 💧 Light watering
Jul 4.3" 4.4" 0" ✅ Rainfall sufficient
Aug 4.3" 4.4" 0" ✅ Rainfall sufficient
Sep 4.3" 3" 1.3" 💧 Light watering
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 2.4" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Webster 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 ~234 GDD — county provides 3,249 GDD Excellent fit

Microgreens Planting Timeline — Webster County, MO

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 13 Aug 13 – Aug 27

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 · Natural rainfall sufficient

📅 Days to Maturity

7–21 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

194 days in Webster County

Growing Tips for Microgreens in Webster County

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

Your generous 194.0-day season in Webster 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 Webster County, MO?

Webster 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 Webster County, MO?

Webster County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 11 and first fall frost is October 22.

When should I plant Microgreens in Webster County, MO?

In Webster County, MO, plant Microgreens after the last frost (around April 11) and before the first frost (around October 22). Best results when soil holds above 50°F.

What growing zone is Webster County, MO for Microgreens?

Webster County sits in USDA Zone 6b. Microgreens grows reliably in zones 1a through 13b, so it's a good fit here.

Can Microgreens grow in Webster County's climate?

Yes — Microgreens grows well in Webster County's temperate climate. Webster County averages a 194-day frost-free season, with last frost around April 11 and first frost around October 22.

🌱

Your Webster County Garden Planner — Free

A 22-page printable planner built for Webster 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Webster County, MO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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