When to plant Potatoes in Watonwan County, MN
In Watonwan County, plant Potatoes in spring between May 6 and May 27, once soil temps hold above 50°F. Watonwan County's last frost averages April 29, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between and — roughly 70–120 days before the first frost on October 6.
When to Plant Potatoes in Watonwan County, MN
Potatoes are a versatile staple crop that produces tubers underground. They come in hundreds of varieties with varying colors, textures, and maturity dates.
Watonwan County, Minnesota is in USDA Zone 5a. The average last spring frost is April 29 and the first fall frost is October 6, giving you a growing season of approximately 160 days.
At an elevation of 984 feet, Watonwan County receives approximately 33.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Potatoes to ensure they mature before fall.
Watonwan County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Potatoes to Grow
For a family of 4, plant approximately 20 potatoes plants in about 40 sq ft. In Watonwan County's 160-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Potatoes Planting Timeline — Watonwan County, MN
Potatoes Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 4 | Mar 4 – Mar 18 |
| Transplant Outdoors | May 13 | May 13 – May 27 |
| Direct Sow | May 6 | May 6 – May 27 |
| Harvest | July 22 | Jul 22 – Sep 30 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
70–120 days
🧪 Soil pH
Needs 5–6.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
160 days in Watonwan County
Growing Tips for Watonwan County
Plant seed potatoes (not grocery store potatoes) 4 inches deep in spring. Hill soil around stems as plants grow to prevent greening. Stop watering when plants die back.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Potatoes in Other Locations
Frequently Asked Questions
When should I plant Potatoes in Watonwan County, MN?
Watonwan County is in Zone 5a with an average last frost of April 29. Plan your Potatoes planting based on this frost date — see the calendar above for exact timing.
What planting zone is Watonwan County, MN?
Watonwan County, Minnesota is in USDA Hardiness Zone 5a. The average last spring frost is April 29 and first fall frost is October 6.
When should I plant Potatoes in Watonwan County, MN?
In Watonwan County, MN, plant Potatoes after the last frost (around April 29) and before the first frost (around October 6). Best results when soil holds above 50°F.
What growing zone is Watonwan County, MN for Potatoes?
Watonwan County sits in USDA Zone 5a. Potatoes grows reliably in zones 3a through 10b, so it's a good fit here.
Can Potatoes grow in Watonwan County's climate?
Yes — Potatoes grows well in Watonwan County's temperate climate. Watonwan County averages a 160-day frost-free season, with last frost around April 29 and first frost around October 6.
Your Watonwan County Garden Planner — Free
A 22-page printable planner built for Watonwan County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.