When to Plant Radish in Washington County, MS
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.
Washington County, Mississippi is in USDA Zone 8a. The average last spring frost is March 6 and the first fall frost is November 15, giving you a growing season of approximately 254 days.
At an elevation of 258 feet, Washington County receives approximately 55.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Radish during the growing season. Clay soil retains moisture well for Radish, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radish root diseases.
Washington County Soil Profile
Soil Type
Clay Loam
Soil pH
5.4-6.4
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
Radish Planting Timeline — Washington County, MS
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | February 20 | Feb 20 – Mar 13 |
| Fall Sowing | September 6 | Sep 6 – Sep 20 |
| Harvest | March 20 | Mar 20 – Apr 10 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Direct Sow |
| March | Direct Sow Harvest |
| April | Harvest |
| May | — |
| June | — |
| July | — |
| August | — |
| September | Fall Sowing |
| 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 8a
Growing Season
254 days
Growing Tips for Washington 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 Washington County, MS?
Washington County is in Zone 8a with an average last frost of March 6. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Washington County, MS?
Washington County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 6 and first fall frost is November 15.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Washington County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.
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