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When to Plant Jostaberry in Lincoln County, WI

Jostaberry is a thornless hybrid of black currant and gooseberry, producing medium-sized, dark berries with a complex, tart-sweet flavor. It is vigorous and disease-resistant.

Lincoln County, Wisconsin is in USDA Zone 4a. The average last spring frost is May 19 and the first fall frost is September 28, giving you a growing season of approximately 132 days.

At an elevation of 1,129 feet, Lincoln County receives approximately 37.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81ยฐF, so choose short-season varieties of Jostaberry to ensure they mature before fall.

Lincoln County, WI (Zone 4a) Short season
132 days
Last Spring Frost May 19
132 growing days
First Fall Frost September 28

Lincoln County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Jun 10
Recommended (50%) ✓ Fits season
Transplant: Jun 16
Safe Start (90%) ✓ Fits season
Transplant: Jun 30

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
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Jostaberry needs ~9,809 GDD — county provides 1,419 GDD May not mature

Jostaberry Planting Timeline โ€” Lincoln County, WI

Jostaberry Planting Calendar

Activity When Date Range
Transplant Outdoors June 16 Jun 16 โ€“ Jun 30

ยท 48" apart ยท Rows 72" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

730โ€“1095 days

Soil pH

6 โ€“ 6.5

USDA Zone

Zone 4a

Growing Season

132 days

Growing Tips for Lincoln County

Plant in rich, well-drained soil. No special pruning required beyond removing old wood. Self-fertile but yields improve with a second bush. Berries ripen midsummer.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Jostaberry in Lincoln County, WI?

Lincoln County is in Zone 4a with an average last frost of May 19. Plan your Jostaberry planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lincoln County, WI?

Lincoln County, Wisconsin is in USDA Hardiness Zone 4a. The average last spring frost is May 19 and first fall frost is September 28.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lincoln County gardeners in Zone 4a organize planting dates, track what's growing, and never miss a planting window.

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Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Lincoln County, WI. Local conditions may vary. Last updated: April 2026.