When to Plant Salsify in Calumet County, WI
Salsify is a root vegetable with a subtle oyster-like flavor, earning it the nickname "oyster plant." It produces long, slender, cream-colored roots.
Calumet County, Wisconsin is in USDA Zone 4b. The average last spring frost is April 30 and the first fall frost is October 12, giving you a growing season of approximately 165 days.
At an elevation of 767 feet, Calumet County receives approximately 38.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Salsify to ensure they mature before fall.
Calumet County Soil Profile
Soil Type
Silt Loam
Soil pH
6-7.1
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
Salsify Planting Timeline — Calumet County, WI
Salsify Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 23 | Apr 23 – May 14 |
| Fall Sowing | July 20 | Jul 20 – Aug 3 |
| Harvest | August 6 | Aug 6 – Sep 17 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Direct Sow |
| May | Direct Sow |
| June | — |
| July | Fall Sowing |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
100–130 days
Soil pH
6 – 7.5
USDA Zone
Zone 4b
Growing Season
165 days
Growing Tips for Calumet County
Direct sow in spring in deeply worked, stone-free soil. Use fresh seed only as viability drops quickly. Harvest in late fall after frost for best flavor.
Companion Planting
Good Companions
Level Up Your Garden
Salsify in Other Locations
Frequently Asked Questions
When should I plant Salsify in Calumet County, WI?
Calumet County is in Zone 4b with an average last frost of April 30. Plan your Salsify planting based on this frost date — see the calendar above for exact timing.
What planting zone is Calumet County, WI?
Calumet County, Wisconsin is in USDA Hardiness Zone 4b. The average last spring frost is April 30 and first fall frost is October 12.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Calumet County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.
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