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When to Plant Ground Cherry in Hancock County, IA

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

Hancock County, Iowa is in USDA Zone 4b. The average last spring frost is April 29 and the first fall frost is October 7, giving you a growing season of approximately 161 days.

At an elevation of 979 feet, Hancock County receives approximately 36.9 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.

Hancock County, IA (Zone 4b) Moderate season
161 days
Last Spring Frost April 29
161 growing days
First Fall Frost October 7

Hancock County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (9 days to spare)
Transplant: May 20 🍅 Harvest: Jul 29 – Sep 23
Recommended (50%) ✓ Fits season (7 days to spare)
Transplant: May 27 🍅 Harvest: Aug 5 – Sep 30
Safe Start (90%) ✓ Fits season (2 days to spare)
Transplant: Jun 10 🍅 Harvest: Aug 19 – Oct 14

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
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 54 gal / 100 sq ft
Ground Cherry needs ~888 GDD — county provides 1,972 GDD Excellent fit

Ground Cherry Planting Timeline โ€” Hancock County, IA

Ground Cherry Planting Calendar

Activity When Date Range
Transplant Outdoors May 27 May 27 โ€“ Jun 10
Harvest August 5 Aug 5 โ€“ Sep 30

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 โ€”
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 4b

Growing Season

161 days

Growing Tips for Hancock 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 Hancock County, IA?

Hancock County is in Zone 4b with an average last frost of April 29. Plan your Ground Cherry planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hancock County, IA?

Hancock County, Iowa is in USDA Hardiness Zone 4b. The average last spring frost is April 29 and first fall frost is October 7.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hancock County gardeners in Zone 4b 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 Hancock County, IA. Local conditions may vary. Last updated: April 2026.