When to plant Onion in Pipestone County, MN
Aim to plant Onion in Pipestone County on or after April 27; the window stays open through May 18. Pipestone County's 151-day frost-free season gives you a single solid spring crop with a brief fall option. A second sowing from July 10 to July 24 extends the harvest into fall.
When to Plant Onion in Pipestone County, MN
Onions are a fundamental kitchen staple available in yellow, white, and red varieties. Choose long-day, short-day, or intermediate types based on your latitude.
Pipestone County, Minnesota is in USDA Zone 4b. The average last spring frost is May 4 and the first fall frost is October 2, giving you a growing season of approximately 151 days.
At an elevation of 906 feet, Pipestone County receives approximately 37.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Onion to ensure they mature before fall.
Pipestone County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Onion Planting Timeline — Pipestone County, MN
Onion Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 23 | Mar 23 – Apr 6 |
| Transplant Outdoors | May 4 | May 4 – May 18 |
| Direct Sow | April 27 | Apr 27 – May 18 |
| Harvest | August 3 | Aug 3 – Sep 21 |
| Fall Sowing | July 10 | Jul 10 – Jul 24 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors 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
90–120 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 4b
📆 Growing Season
151 days in Pipestone County
Growing Tips for Pipestone County
Start seeds indoors 8-10 weeks before transplanting. Match day-length type to your latitude. Stop watering when tops begin to fall over and cure bulbs for 2-3 weeks before storage.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Onion in Other Locations
Frequently Asked Questions
When should I plant Onion in Pipestone County, MN?
Pipestone County is in Zone 4b with an average last frost of May 4. Plan your Onion planting based on this frost date — see the calendar above for exact timing.
What planting zone is Pipestone County, MN?
Pipestone County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is May 4 and first fall frost is October 2.
When should I plant Onion in Pipestone County, MN?
In Pipestone County, MN, plant Onion after the last frost (around May 4) and before the first frost (around October 2). Best results when soil holds above 50°F.
What growing zone is Pipestone County, MN for Onion?
Pipestone County sits in USDA Zone 4b. Onion grows reliably in zones 3a through 10b, so it's a good fit here.
Can Onion grow in Pipestone County's climate?
Yes — Onion grows well in Pipestone County's temperate climate. Pipestone County averages a 151-day frost-free season, with last frost around May 4 and first frost around October 2.
Your Pipestone County Garden Planner — Free
A 22-page printable planner built for Pipestone County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.