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When to plant Garlic in Gratiot County, MI

Gratiot County sits in USDA Zone 6a. Plant Garlic between mid-spring (after last frost on April 30) and late spring. A second sowing from September 4 to September 18 extends the harvest into fall.

When to Plant Garlic in Gratiot County, MI

Garlic

Garlic is a pungent allium planted in fall and harvested the following summer. Hardneck varieties produce edible flower stalks (scapes) and are more cold-hardy.

Gratiot County, Michigan is in USDA Zone 6a. The average last spring frost is April 30 and the first fall frost is October 16, giving you a growing season of approximately 169 days.

At an elevation of 1,055 feet, Gratiot County receives approximately 38.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Garlic to ensure they mature before fall.

Gratiot County, MI (Zone 6a) Moderate season
169 days
Last Spring Frost April 30
169 growing days
First Fall Frost October 16

Gratiot County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Garlic Planting Timeline — Gratiot County, MI

Garlic Planting Calendar

Activity When Date Range
Harvest December 4 Dec 4 – Mar 19
Fall Sowing September 4 Sep 4 – Sep 18

Plant 1" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

90–240 days

🧪 Soil pH

Needs 6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

169 days in Gratiot County

Growing Tips for Gratiot County

Plant individual cloves pointed end up in fall, 6 weeks before ground freezes. Mulch heavily with straw. Harvest when lower leaves begin to brown but 5-6 green leaves remain.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans
  • Asparagus

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Garlic in Gratiot County, MI?

Gratiot County is in Zone 6a with an average last frost of April 30. Plan your Garlic planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gratiot County, MI?

Gratiot County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is April 30 and first fall frost is October 16.

When should I plant Garlic in Gratiot County, MI?

In Gratiot County, MI, plant Garlic after the last frost (around April 30) and before the first frost (around October 16). Best results when soil holds above 50°F.

What growing zone is Gratiot County, MI for Garlic?

Gratiot County sits in USDA Zone 6a. Garlic grows reliably in zones 3a through 9b, so it's a good fit here.

Can Garlic grow in Gratiot County's climate?

Yes — Garlic grows well in Gratiot County's temperate climate. Gratiot County averages a 169-day frost-free season, with last frost around April 30 and first frost around October 16.

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Your Gratiot County Garden Planner — Free

A 22-page printable planner built for Gratiot County (Zone 6a). 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 Gratiot County, MI. Local conditions may vary. Last updated: June 2026.

Sources & credits

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