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When to Plant Ground Cherry in Osceola County, MI

Ground cherries produce small, sweet, tropical-tasting berries enclosed in papery husks. They are related to tomatillos and cape gooseberries and self-sow readily.

Osceola County, Michigan is in USDA Zone 5a. The average last spring frost is May 10 and the first fall frost is October 10, giving you a growing season of approximately 153 days.

At an elevation of 762 feet, Osceola County receives approximately 30.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Ground Cherry to ensure they mature before fall.

Osceola County, MI (Zone 5a) Moderate season
153 days
Last Spring Frost May 10
153 growing days
First Fall Frost October 10

Osceola County Soil Profile

Soil Type

Silt Loam

Soil pH

6.3-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (8 days to spare)
Transplant: May 21 🍅 Harvest: Jul 30 – Sep 24
Recommended (50%) ✓ Fits season (6 days to spare)
Transplant: May 31 🍅 Harvest: Aug 9 – Oct 4
Safe Start (90%) ✓ Fits season (12 days to spare)
Transplant: Jun 11 🍅 Harvest: Aug 20 – Oct 15

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 248 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Ground Cherry needs ~888 GDD — county provides 1,874 GDD Excellent fit

Ground Cherry Planting Timeline โ€” Osceola County, MI

Ground Cherry Planting Calendar

Activity When Date Range
Transplant Outdoors May 31 May 31 โ€“ Jun 14
Harvest August 9 Aug 9 โ€“ Oct 4

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Transplant Outdoors
June Transplant Outdoors
July โ€”
August Harvest
September Harvest
October Harvest
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

65โ€“80 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 5a

Growing Season

153 days

Growing Tips for Osceola County

Start seeds indoors 6-8 weeks before last frost. Let fruits fall to the ground naturally when ripe inside their husks. The husk turns brown and papery when the fruit is ready.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Level Up Your Garden

Frequently Asked Questions

When should I plant Ground Cherry in Osceola County, MI?

Osceola County is in Zone 5a with an average last frost of May 10. Plan your Ground Cherry planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Osceola County, MI?

Osceola County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 10 and first fall frost is October 10.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Osceola County gardeners in Zone 5a organize planting dates, track what's growing, and never miss a planting window.

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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 Osceola County, MI. Local conditions may vary. Last updated: April 2026.