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When to plant Cucumber in Clare County, MI

In Clare County, Cucumber is a single-season spring crop — there's no second fall window. Plant May 21–June 11 for an 50–70-day harvest, finishing well before the October 3 first frost.

When to Plant Cucumber in Clare County, MI

Clare County, Michigan Zone 5a July

Your July planting checklist for Clare County, Michigan

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

Avg. last frost May 14
Avg. first frost October 3
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 15 hrs
  1. Harvest cucumber as they ripen

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

August prep starts now
  • First harvests: cucumber

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Cucumbers are a warm-season vine crop available in slicing and pickling varieties. They are prolific producers when given warmth, moisture, and a trellis to climb.

Clare County, Michigan is in USDA Zone 5a. The average last spring frost is May 14 and the first fall frost is October 3, giving you a growing season of approximately 142 days.

At an elevation of 1,150 feet, Clare County receives approximately 41.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Cucumber during the growing season.

Clare County, MI (Zone 5a) Short season
142 days
Last Spring Frost May 14
142 growing days
First Fall Frost October 3

Clare County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.1

Drainage

Well Drained

Cucumber Planting Risk Windows

Early Start (70% safe) ✓ Fits season (22 days to spare)
Start indoors: Mar 30 Transplant: May 18 🍅 Harvest: Jul 13 – Sep 7
Recommended (50%) ✓ Fits season (16 days to spare)
Start indoors: Apr 9 Transplant: May 28 🍅 Harvest: Jul 23 – Sep 17
Safe Start (90%) ✓ Fits season (17 days to spare)
Start indoors: Apr 26 Transplant: Jun 14 🍅 Harvest: Aug 9 – Oct 4

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 Clare County

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

Soil pH

Your soil pH (6.2–7.1) overlaps with Cucumber's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (4.7%) — Cucumber will thrive.

How to Plant Cucumber

0.5"
Planting Depth
24"
Between Plants
48"
Between Rows

Succession Planting Cucumber

3
successive plantings in your 142-day season

Sow every 5.7 weeks. Last sowing by Jul 25 to harvest before frost.

Cucumber Water Budget

Plant needs
1.5″/week
Rainfall provides
1.2″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 341 gal / 100 sq ft

Monthly Watering Guide for Cucumber

Cucumber needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Cucumber Needs Rainfall You Supplement Action
Jan 1.9" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 3.2" 0" ❄️ Dormant
Apr 3.8" 0" ❄️ Dormant
May 6.5" 5.5" 1" 💧 Light watering
Jun 6.5" 5.5" 1" 💧 Light watering
Jul 6.5" 4.1" 2.4" 💧 Light watering
Aug 6.5" 4.4" 2.1" 💧 Light watering
Sep 6.5" 3.9" 2.6" 💧 Light watering
Oct 6.5" 2.8" 3.7" 🚿 Regular watering
Nov 2.6" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

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

Cucumber 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.

Cucumber needs ~915 GDD — county provides 2,165 GDD Excellent fit

Cucumber Planting Timeline — Clare County, MI

Cucumber Planting Calendar

Activity When Date Range
Start Indoors April 9 Apr 9 – Apr 23
Transplant Outdoors May 28 May 28 – Jun 11
Direct Sow May 21 May 21 – Jun 11
Harvest July 23 Jul 23 – Sep 17

Plant 0.5" deep · 24" apart · Rows 48" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5a

📆 Growing Season

142 days in Clare County

Growing Tips for Cucumber in Clare County

Direct sow Cucumber outdoors after May 14 in Clare County when soil has warmed and frost danger has passed.

Common pests for Cucumber in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after last frost or start indoors 3 weeks early. Provide a trellis for vining types to save space and improve air circulation. Harvest frequently to encourage production.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cucumber in Clare County, MI?

Clare County is in Zone 5a with an average last frost of May 14. Plan your Cucumber planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clare County, MI?

Clare County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 14 and first fall frost is October 3.

When should I plant Cucumber in Clare County, MI?

In Clare County, MI, plant Cucumber after the last frost (around May 14) and before the first frost (around October 3). Best results when soil holds above 50°F.

What growing zone is Clare County, MI for Cucumber?

Clare County sits in USDA Zone 5a. Cucumber grows reliably in zones 3a through 11b, so it's a good fit here.

Can Cucumber grow in Clare County's climate?

Yes — Cucumber grows well in Clare County's temperate climate. Clare County averages a 142-day frost-free season, with last frost around May 14 and first frost around October 3.

🌱

Your Clare County Garden Planner — Free

A 22-page printable planner built for Clare 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.

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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 Clare County, MI. 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.