When to Plant Serviceberries in Oconto 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.
Oconto County, Wisconsin is in USDA Zone 4b. The average last spring frost is May 9 and the first fall frost is October 4, giving you a growing season of approximately 148 days.
At an elevation of 794 feet, Oconto County receives approximately 37.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80°F, so choose short-season varieties of Serviceberries to ensure they mature before fall.
Oconto County Soil Profile
Soil Type
Silt Loam
Soil pH
6-7
Drainage
Well Drained
Plant Planting Risk Windows
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
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Serviceberries Planting Timeline — Oconto County, WI
Serviceberries Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 6 | Jun 6 – Jun 20 |
· 120" apart · Rows 144" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | Transplant Outdoors |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
730–1095 days
Soil pH
5.5 – 7
USDA Zone
Zone 4b
Growing Season
148 days
Growing Tips for Oconto 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
Serviceberries in Other Locations
Frequently Asked Questions
When should I plant Serviceberries in Oconto County, WI?
Oconto County is in Zone 4b with an average last frost of May 9. Plan your Serviceberries planting based on this frost date — see the calendar above for exact timing.
What planting zone is Oconto County, WI?
Oconto County, Wisconsin is in USDA Hardiness Zone 4b. The average last spring frost is May 9 and first fall frost is October 4.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Oconto County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.
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