When to plant Radish in Koochiching County, MN
For Radish in Koochiching County, the safe spring window opens around May 15 and closes around June 5. Last expected frost is May 22, first fall frost September 18, giving a 119-day growing season. A second sowing from June 26 to July 10 extends the harvest into fall.
When to Plant Radish in Koochiching County, MN
Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.
Koochiching County, Minnesota is in USDA Zone 3b. The average last spring frost is May 22 and the first fall frost is September 18, giving you a growing season of approximately 119 days.
At an elevation of 508 feet, Koochiching County receives approximately 41.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 79°F, so choose short-season varieties of Radish to ensure they mature before fall.
Koochiching County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Radish Planting Timeline — Koochiching County, MN
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 15 | May 15 – Jun 5 |
| Harvest | June 12 | Jun 12 – Jul 3 |
| Fall Sowing | June 26 | Jun 26 – Jul 10 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | Direct Sow Fall Sowing Harvest |
| July | Fall Sowing Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
22–35 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 3b
📆 Growing Season
119 days in Koochiching County
Growing Tips for Koochiching County
Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Radish in Other Locations
Frequently Asked Questions
When should I plant Radish in Koochiching County, MN?
Koochiching County is in Zone 3b with an average last frost of May 22. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Koochiching County, MN?
Koochiching County, Minnesota is in USDA Hardiness Zone 3b. The average last spring frost is May 22 and first fall frost is September 18.
When should I plant Radish in Koochiching County, MN?
In Koochiching County, MN, plant Radish after the last frost (around May 22) and before the first frost (around September 18). Best results when soil holds above 50°F.
What growing zone is Koochiching County, MN for Radish?
Koochiching County sits in USDA Zone 3b. Radish grows reliably in zones 2a through 11b, so it's a good fit here.
Can Radish grow in Koochiching County's climate?
Yes — Radish grows well in Koochiching County's temperate climate. Koochiching County averages a 119-day frost-free season, with last frost around May 22 and first frost around September 18.
Your Koochiching County Garden Planner — Free
A 22-page printable planner built for Koochiching County (Zone 3b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.