When to plant Salsify in Polk County, MN
Aim to plant Salsify in Polk County on or after May 4; the window stays open through May 25. Polk County's 143-day frost-free season gives you a single solid spring crop with a brief fall option. A second sowing from July 9 to July 23 extends the harvest into fall.
When to Plant Salsify in Polk County, MN
Salsify is a root vegetable with a subtle oyster-like flavor, earning it the nickname "oyster plant." It produces long, slender, cream-colored roots.
Polk County, Minnesota is in USDA Zone 4a. The average last spring frost is May 11 and the first fall frost is October 1, giving you a growing season of approximately 143 days.
At an elevation of 1,053 feet, Polk County receives approximately 35.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 78°F, so choose short-season varieties of Salsify to ensure they mature before fall.
Polk County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Salsify Planting Timeline — Polk County, MN
Salsify Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 4 | May 4 – May 25 |
| Harvest | August 17 | Aug 17 – Sep 28 |
| Fall Sowing | July 9 | Jul 9 – Jul 23 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | — |
| July | Fall Sowing |
| August | 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
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 4a
📆 Growing Season
143 days in Polk County
Growing Tips for Polk 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
Check more plant combinations with our Companion Planting Checker →
Salsify in Other Locations
Frequently Asked Questions
When should I plant Salsify in Polk County, MN?
Polk County is in Zone 4a with an average last frost of May 11. Plan your Salsify planting based on this frost date — see the calendar above for exact timing.
What planting zone is Polk County, MN?
Polk County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 11 and first fall frost is October 1.
When should I plant Salsify in Polk County, MN?
In Polk County, MN, plant Salsify after the last frost (around May 11) and before the first frost (around October 1). Best results when soil holds above 50°F.
What growing zone is Polk County, MN for Salsify?
Polk County sits in USDA Zone 4a. Salsify grows reliably in zones 3a through 9b, so it's a good fit here.
Can Salsify grow in Polk County's climate?
Yes — Salsify grows well in Polk County's temperate climate. Polk County averages a 143-day frost-free season, with last frost around May 11 and first frost around October 1.
Your Polk County Garden Planner — Free
A 22-page printable planner built for Polk County (Zone 4a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.