When to Plant Radish in Ross 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.
Ross County, Ohio is in USDA Zone 6a. The average last spring frost is April 22 and the first fall frost is October 21, giving you a growing season of approximately 182 days.
At an elevation of 1,322 feet, Ross County receives approximately 36.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Radish during the growing season.
Ross County Soil Profile
Soil Type
Silt Loam
Soil pH
6.1-6.8
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Ross County
How your county's soil matches Radish's growing requirements.
Soil pH
Your soil pH (6.1–6.8) is within Radish's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Ross County is excellent for Radish — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.0%) — Radish will thrive.
How to Plant Radish
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Radish
Sow every 2.4 weeks. Last sowing by Sep 16 to harvest before frost.
For a dedicated fall crop, sow by Aug 12.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Radish Planting Timeline — Ross County, OH
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 8 | Apr 8 – Apr 29 |
| Fall Sowing | August 12 | Aug 12 – Aug 26 |
| Harvest | May 6 | May 6 – May 27 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Direct Sow |
| May | Harvest |
| June | — |
| July | — |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
22–35 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 6a
📆 Growing Season
182 days in Ross County
Growing Tips for Radish in Ross County
Direct sow Radish outdoors after April 22 in Ross County when soil has warmed and frost danger has passed.
Your generous 182.0-day season in Ross County allows multiple plantings of Radish. Sow every 11.0 days for continuous harvest.
Common pests for Radish in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
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
Level Up Your Garden
Radish in Other Locations
Frequently Asked Questions
When should I plant Radish in Ross County, OH?
Ross County is in Zone 6a with an average last frost of April 22. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Ross County, OH?
Ross County, Ohio is in USDA Hardiness Zone 6a. The average last spring frost is April 22 and first fall frost is October 21.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Ross County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.
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