When to plant Daikon in Mercer County, KY
For Mercer County, gardeners: plant Daikon March 30 through April 20 once soil reads 50°F. A second sowing from August 17 to August 31 extends the harvest into fall.
When to Plant Daikon in Mercer County, KY
Daikon is a large, mild Japanese radish that can grow over a foot long. It is excellent for pickling, stir-fries, and as a soil-breaking cover crop.
Mercer County, Kentucky is in USDA Zone 7a. The average last spring frost is April 13 and the first fall frost is October 26, giving you a growing season of approximately 196 days.
At an elevation of 1,559 feet, Mercer County receives approximately 54.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Daikon during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Daikon root diseases.
Mercer County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Daikon Planting Timeline — Mercer County, KY
Daikon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 30 | Mar 30 – Apr 20 |
| Harvest | May 25 | May 25 – Jun 22 |
| Fall Sowing | August 17 | Aug 17 – Aug 31 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow |
| April | Direct Sow |
| May | 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
50–70 days
🧪 Soil pH
Needs 5.8–7 · Your soil: N/A
🗺️ USDA Zone
Zone 7a
📆 Growing Season
196 days in Mercer County
Growing Tips for Mercer County
Direct sow in late summer for fall harvest. Loosen soil deeply before planting. Thin seedlings to 6 inches apart. Harvest before hard freeze as exposed shoulders may crack.
Companion Planting
Good Companions
Avoid Planting Near
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Daikon in Other Locations
Frequently Asked Questions
When should I plant Daikon in Mercer County, KY?
Mercer County is in Zone 7a with an average last frost of April 13. Plan your Daikon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Mercer County, KY?
Mercer County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 13 and first fall frost is October 26.
When should I plant Daikon in Mercer County, KY?
In Mercer County, KY, plant Daikon after the last frost (around April 13) and before the first frost (around October 26). Best results when soil holds above 50°F.
What growing zone is Mercer County, KY for Daikon?
Mercer County sits in USDA Zone 7a. Daikon grows reliably in zones 2a through 11b, so it's a good fit here.
Can Daikon grow in Mercer County's climate?
Yes — Daikon grows well in Mercer County's temperate climate. Mercer County averages a 196-day frost-free season, with last frost around April 13 and first frost around October 26.
Your Mercer County Garden Planner — Free
A 22-page printable planner built for Mercer County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.