When to Plant Radish in Mahoning County, OH
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.
Mahoning County, Ohio is in USDA Zone 5b. The average last spring frost is April 30 and the first fall frost is October 18, giving you a growing season of approximately 171 days.
At an elevation of 759 feet, Mahoning County receives approximately 37.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Radish during the growing season.
Mahoning County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Radish Planting Timeline — Mahoning County, OH
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 16 | Apr 16 – May 7 |
| Harvest | May 14 | May 14 – Jun 4 |
| Fall Sowing | August 9 | Aug 9 – Aug 23 |
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 | — |
| August | Fall Sowing |
| 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 5b
📆 Growing Season
171 days in Mahoning County
Growing Tips for Mahoning 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 Mahoning County, OH?
Mahoning County is in Zone 5b with an average last frost of April 30. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Mahoning County, OH?
Mahoning County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is April 30 and first fall frost is October 18.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Mahoning County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.
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