When to Plant Radish in Crawford 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.
Crawford County, Ohio is in USDA Zone 5b. The average last spring frost is April 26 and the first fall frost is October 22, giving you a growing season of approximately 179 days.
At an elevation of 819 feet, Crawford County receives approximately 30.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Radish to ensure they mature before fall.
Crawford County Soil Profile
Soil Type
Silt Loam
Soil pH
5.8-7
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.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Radish Planting Timeline — Crawford County, OH
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 12 | Apr 12 – May 3 |
| Fall Sowing | August 13 | Aug 13 – Aug 27 |
| Harvest | May 10 | May 10 – May 31 |
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 | — |
| 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
6 – 7
USDA Zone
Zone 5b
Growing Season
179 days
Growing Tips for Crawford 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
Level Up Your Garden
Radish in Other Locations
Frequently Asked Questions
When should I plant Radish in Crawford County, OH?
Crawford County is in Zone 5b with an average last frost of April 26. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Crawford County, OH?
Crawford County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is April 26 and first fall frost is October 22.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Crawford County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.
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