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When to Plant Serviceberries in Waushara County, WI

Serviceberries (saskatoons) are attractive native shrubs or small trees producing sweet, blueberry-like fruits. They have beautiful spring flowers and vibrant fall color.

Waushara County, Wisconsin is in USDA Zone 4b. The average last spring frost is April 30 and the first fall frost is October 9, giving you a growing season of approximately 162 days.

At an elevation of 560 feet, Waushara County receives approximately 37.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81ยฐF, so choose short-season varieties of Serviceberries to ensure they mature before fall.

Waushara County, WI (Zone 4b) Moderate season
162 days
Last Spring Frost April 30
162 growing days
First Fall Frost October 9

Waushara County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: May 23
Recommended (50%) ✓ Fits season
Transplant: May 28
Safe Start (90%) ✓ Fits season
Transplant: Jun 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
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 44 gal / 100 sq ft
Serviceberries needs ~9,809 GDD — county provides 1,741 GDD May not mature

Serviceberries Planting Timeline โ€” Waushara County, WI

Serviceberries Planting Calendar

Activity When Date Range
Transplant Outdoors May 28 May 28 โ€“ Jun 11

ยท 120" apart ยท Rows 144" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

730โ€“1095 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 4b

Growing Season

162 days

Growing Tips for Waushara County

Plant in well-drained soil. Minimal pruning needed beyond removing dead wood. Protect fruit from birds with netting. Berries ripen in early summer and are excellent fresh or in pies.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Serviceberries in Waushara County, WI?

Waushara County is in Zone 4b with an average last frost of April 30. Plan your Serviceberries planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Waushara County, WI?

Waushara County, Wisconsin is in USDA Hardiness Zone 4b. The average last spring frost is April 30 and first fall frost is October 9.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Waushara 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 Waushara County, WI. Local conditions may vary. Last updated: April 2026.