When to Plant Salsify in Houghton County, MI
Salsify is a root vegetable with a subtle oyster-like flavor, earning it the nickname "oyster plant." It produces long, slender, cream-colored roots.
Houghton County, Michigan is in USDA Zone 4a. The average last spring frost is May 19 and the first fall frost is October 2, giving you a growing season of approximately 136 days.
At an elevation of 956 feet, Houghton County receives approximately 34.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Salsify to ensure they mature before fall.
Houghton County Soil Profile
Soil Type
Silt Loam
Soil pH
5.9-7.2
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 — Houghton County, MI
Salsify Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 12 | May 12 – Jun 2 |
| Fall Sowing | July 10 | Jul 10 – Jul 24 |
| Harvest | August 25 | Aug 25 – Oct 6 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | Direct Sow |
| July | Fall Sowing |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| 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 4a
Growing Season
136 days
Growing Tips for Houghton 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 Houghton County, MI?
Houghton County is in Zone 4a with an average last frost of May 19. Plan your Salsify planting based on this frost date — see the calendar above for exact timing.
What planting zone is Houghton County, MI?
Houghton County, Michigan is in USDA Hardiness Zone 4a. The average last spring frost is May 19 and first fall frost is October 2.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Houghton County gardeners in Zone 4a organize planting dates, track what's growing, and never miss a planting window.
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