Blog

When to Plant Radish in Missaukee County, MI

Missaukee County, Michigan Zone 5a May

What to do in May

A quick May briefing for Missaukee County, Michigan gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 19
Avg. first frost September 30
Soil temp (4") 58°F
Watering Moderate
Pest pressure Low
Daylight 14.6 hrs
  1. Seed radish outdoors

    Your soil is 58°F — warm enough for these to germinate without babying.

June will be here before you know it — start on
  • First harvests: radish

Instant PDF download. No spam, unsubscribe any time.

Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.

Missaukee County, Michigan is in USDA Zone 5a. The average last spring frost is May 19 and the first fall frost is September 30, giving you a growing season of approximately 134 days.

At an elevation of 667 feet, Missaukee County receives approximately 32.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Radish during the growing season.

Missaukee County, MI (Zone 5a) Short season
134 days
Last Spring Frost May 19
134 growing days
First Fall Frost September 30

Missaukee County Soil Profile

Soil Type

Silt Loam

Soil pH

6.3-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (83 days to spare)
Transplant: May 14 🍅 Harvest: Jun 11 – Jul 2
Recommended (50%) ✓ Fits season (85 days to spare)
Transplant: May 19 🍅 Harvest: Jun 16 – Jul 7
Safe Start (90%) ✓ Fits season (87 days to spare)
Transplant: Jun 2 🍅 Harvest: Jun 30 – Jul 21

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 Missaukee County

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

Soil pH

Your soil pH (6.3–7.0) is within Radish's preferred range (6.0–7.0).

Soil Texture

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

Organic Matter

Organic matter is excellent (4.5%) — Radish will thrive.

How to Plant Radish

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 Radish

7
successive plantings in your 134-day season

Sow every 2.4 weeks. Last sowing by Aug 26 to harvest before frost.

For a dedicated fall crop, sow by Jul 22.

Plant Water Budget

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

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

Monthly Watering Guide for Radish

Radish needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Radish Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.3" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 3.4" 0" ❄️ Dormant
May 2.2" 3.7" 0" ✅ Rainfall sufficient
Jun 2.2" 4" 0" ✅ Rainfall sufficient
Jul 2.2" 3.3" 0" ✅ Rainfall sufficient
Aug 2.2" 3.5" 0" ✅ Rainfall sufficient
Sep 2.2" 2.5" 0" ✅ Rainfall sufficient
Oct 2.7" 0" ❄️ Dormant
Nov 2.1" 0" ❄️ Dormant
Dec 1.9" 0" ❄️ Dormant

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

Radish 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.

Radish needs ~413 GDD — county provides 1,943 GDD Excellent fit

Radish Planting Timeline — Missaukee County, MI

Radish Planting Calendar

Activity When Date Range
Direct Sow May 5 May 5 – May 26
Harvest June 2 Jun 2 – Jun 23
Fall Sowing July 22 Jul 22 – Aug 5

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

22–35 days

🧪 Soil pH

Needs 6–7 · Your soil: ideal

🗺️ USDA Zone

Zone 5a

📆 Growing Season

134 days in Missaukee County

Growing Tips for Radish in Missaukee County

Direct sow Radish outdoors after May 19 in Missaukee County when soil has warmed and frost danger has passed.

Your generous 134.0-day season in Missaukee County allows multiple plantings of Radish. Sow every 11.0 days for continuous harvest.

Common pests for Radish in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in Missaukee County, MI?

Missaukee County is in Zone 5a with an average last frost of May 19. Plan your Radish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Missaukee County, MI?

Missaukee County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 19 and first fall frost is September 30.

🌱

Your Missaukee County Garden Planner — Free

A 24-page printable planner built for Missaukee County (Zone 5a). 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 Missaukee County, MI. 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.