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When to Plant Microgreens in Walsh County, ND

Walsh County, North Dakota Zone 4a July

Your July gardening checklist

Each item below is timed to Walsh County, North Dakota's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 14
Avg. first frost September 30
Soil temp (4") 67°F
Watering Moderate
Pest pressure Moderate
Daylight 15.5 hrs
  1. Plant your fall garden: microgreens

    Fall crops get sweeter with a light frost. Don't be afraid of cool nights.

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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.

Walsh County, North Dakota is in USDA Zone 4a. The average last spring frost is May 14 and the first fall frost is September 30, giving you a growing season of approximately 139 days.

At an elevation of 553 feet, Walsh County receives approximately 32.7 inches of rainfall annually with predominantly loam soil. Summer highs average 81°F, so choose short-season varieties of Microgreens to ensure they mature before fall.

Walsh County, ND (Zone 4a) Short season
139 days
Last Spring Frost May 14
139 growing days
First Fall Frost September 30

Walsh County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.5

Drainage

Well Drained

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 1.2" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 3.1" 0" ❄️ Dormant
May 4.3" 5.2" 0" ✅ Rainfall sufficient
Jun 4.3" 5.3" 0" ✅ Rainfall sufficient
Jul 4.3" 3.6" 0.7" 💧 Light watering
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 1.9" 0" ❄️ Dormant
Nov 1.1" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

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

Microgreens Planting Timeline — Walsh County, ND

Microgreens Planting Calendar

Activity When Date Range
Start Indoors April 2 Apr 2 – Apr 16
Transplant Outdoors May 14 May 14 – May 28
Direct Sow May 7 May 7 – May 28
Harvest May 21 May 21 – Jun 18
Fall Sowing July 8 Jul 8 – Jul 22

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

7–21 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 4a

📆 Growing Season

139 days in Walsh County

Growing Tips for Walsh County

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 Walsh County, ND?

Walsh County is in Zone 4a with an average last frost of May 14. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Walsh County, ND?

Walsh County, North Dakota is in USDA Hardiness Zone 4a. The average last spring frost is May 14 and first fall frost is September 30.

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Your Walsh County Garden Planner — Free

A 22-page printable planner built for Walsh County (Zone 4a). 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 Walsh County, ND. Local conditions may vary. Last updated: July 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.