When to plant Radish in Olmsted County, MN
For Radish in Olmsted County, the safe spring window opens around April 26 and closes around May 17. Last expected frost is May 3, first fall frost October 4, giving a 154-day growing season. A second sowing from July 12 to July 26 extends the harvest into fall.
When to Plant Radish in Olmsted 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.
Olmsted County, Minnesota is in USDA Zone 4b. The average last spring frost is May 3 and the first fall frost is October 4, giving you a growing season of approximately 154 days.
At an elevation of 992 feet, Olmsted County receives approximately 32.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81°F, so choose short-season varieties of Radish to ensure they mature before fall.
Olmsted County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Radish Planting Timeline — Olmsted County, MN
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 26 | Apr 26 – May 17 |
| Harvest | May 24 | May 24 – Jun 14 |
| Fall Sowing | July 12 | Jul 12 – Jul 26 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Direct Sow |
| May | Direct Sow Harvest |
| June | Harvest |
| July | Fall Sowing |
| 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 4b
📆 Growing Season
154 days in Olmsted County
Growing Tips for Olmsted 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 Olmsted County, MN?
Olmsted County is in Zone 4b with an average last frost of May 3. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Olmsted County, MN?
Olmsted County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is May 3 and first fall frost is October 4.
When should I plant Radish in Olmsted County, MN?
In Olmsted County, MN, plant Radish after the last frost (around May 3) and before the first frost (around October 4). Best results when soil holds above 50°F.
What growing zone is Olmsted County, MN for Radish?
Olmsted County sits in USDA Zone 4b. Radish grows reliably in zones 2a through 11b, so it's a good fit here.
Can Radish grow in Olmsted County's climate?
Yes — Radish grows well in Olmsted County's temperate climate. Olmsted County averages a 154-day frost-free season, with last frost around May 3 and first frost around October 4.
Your Olmsted County Garden Planner — Free
A 22-page printable planner built for Olmsted 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.