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When to plant Radish in Laurel County, KY

Plant Radish in Laurel County after April 19; the prime window is April 5–April 26. A second sowing from August 12 to August 26 extends the harvest into fall.

When to Plant Radish in Laurel County, KY

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.

Laurel County, Kentucky is in USDA Zone 7a. The average last spring frost is April 19 and the first fall frost is October 21, giving you a growing season of approximately 185 days.

At an elevation of 2,549 feet, Laurel County receives approximately 51 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Radish during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radish root diseases.

Laurel County, KY (Zone 7a) Moderate season
185 days
Last Spring Frost April 19
185 growing days
First Fall Frost October 21

Laurel County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.9

Drainage

Well Drained

Monthly Watering Guide for Radish

Radish needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Radish Needs Rainfall You Supplement Action
Jan 4" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.5" 0" ❄️ Dormant
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 4.4" 0" ✅ Rainfall sufficient
Jun 4.3" 4.8" 0" ✅ Rainfall sufficient
Jul 4.3" 5.6" 0" ✅ Rainfall sufficient
Aug 4.3" 5.3" 0" ✅ Rainfall sufficient
Sep 4.3" 3.7" 0.6" 💧 Light watering
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 3.8" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Laurel County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Radish Planting Timeline — Laurel County, KY

Radish Planting Calendar

Activity When Date Range
Direct Sow April 5 Apr 5 – Apr 26
Harvest May 3 May 3 – May 24
Fall Sowing August 12 Aug 12 – Aug 26

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

MonthActivities
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

Moderate — regular watering

📅 Days to Maturity

22–35 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 7a

📆 Growing Season

185 days in Laurel County

Growing Tips for Laurel 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

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in Laurel County, KY?

Laurel County is in Zone 7a with an average last frost of April 19. Plan your Radish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Laurel County, KY?

Laurel County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 19 and first fall frost is October 21.

When should I plant Radish in Laurel County, KY?

In Laurel County, KY, plant Radish after the last frost (around April 19) and before the first frost (around October 21). Best results when soil holds above 50°F.

What growing zone is Laurel County, KY for Radish?

Laurel County sits in USDA Zone 7a. Radish grows reliably in zones 2a through 11b, so it's a good fit here.

Can Radish grow in Laurel County's climate?

Yes — Radish grows well in Laurel County's temperate climate. Laurel County averages a 185-day frost-free season, with last frost around April 19 and first frost around October 21.

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Your Laurel County Garden Planner — Free

A 22-page printable planner built for Laurel 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Laurel County, KY. Local conditions may vary. Last updated: July 2026.

Sources & credits

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