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When to Plant Radish in Lowndes County, AL

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.

Lowndes County, Alabama is in USDA Zone 8a. The average last spring frost is March 15 and the first fall frost is November 13, giving you a growing season of approximately 243 days.

At an elevation of 392 feet, Lowndes County receives approximately 57.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95ยฐF, so Radish may need afternoon shade and extra watering during peak heat. 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.

Lowndes County, AL (Zone 8a) Long season
243 days
Last Spring Frost March 15
243 growing days
First Fall Frost November 13

Lowndes County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (192 days to spare)
Transplant: Mar 7 🍅 Harvest: Apr 4 – Apr 25
Recommended (50%) ✓ Fits season (194 days to spare)
Transplant: Mar 15 🍅 Harvest: Apr 12 – May 3
Safe Start (90%) ✓ Fits season (185 days to spare)
Transplant: Apr 7 🍅 Harvest: May 5 – May 26

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 Lowndes County

How your county's soil matches Radish's growing requirements.

Soil pH

Your soil pH (5.5โ€“6.5) overlaps with Radish's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The clay loam soil in Lowndes County is excellent for Radish โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Radish.

How to Plant Radish

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Radish

14
successive plantings in your 243-day season

Sow every 2.4 weeks. Last sowing by Oct 09 to harvest before frost.

For a dedicated fall crop, sow by Sep 04.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Radish

Radish needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Radish Needs Rainfall You Supplement Action
Jan โ€” 4.8" 0" โ„๏ธ Dormant
Feb โ€” 4" 0" โ„๏ธ Dormant
Mar 2.2" 5.2" 0" โœ… Rainfall sufficient
Apr 2.2" 4.1" 0" โœ… Rainfall sufficient
May 2.2" 4.6" 0" โœ… Rainfall sufficient
Jun 2.2" 4.9" 0" โœ… Rainfall sufficient
Jul 2.2" 6" 0" โœ… Rainfall sufficient
Aug 2.2" 6.2" 0" โœ… Rainfall sufficient
Sep 2.2" 4.6" 0" โœ… Rainfall sufficient
Oct 2.2" 3.9" 0" โœ… Rainfall sufficient
Nov 2.2" 4.9" 0" โœ… Rainfall sufficient
Dec โ€” 4.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Lowndes County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Radish Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Radish needs ~606 GDD — county provides 5,163 GDD Excellent fit

Radish Planting Timeline โ€” Lowndes County, AL

Radish Planting Calendar

Activity When Date Range
Direct Sow March 1 Mar 1 โ€“ Mar 22
Harvest March 29 Mar 29 โ€“ Apr 19
Fall Sowing September 4 Sep 4 โ€“ Sep 18

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Direct Sow Harvest
April Harvest
May โ€”
June โ€”
July โ€”
August โ€”
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

22โ€“35 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

243 days in Lowndes County

Growing Tips for Radish in Lowndes County

Direct sow Radish outdoors after March 15 in Lowndes County when soil has warmed and frost danger has passed.

With Lowndes County's clay soil (26% clay), work in 3-4 inches of compost before planting Radish. Avoid tilling when soil is wet to prevent compaction.

Summer highs in Lowndes County reach 95ยฐF โ€” grow Radish as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 243.0-day season in Lowndes 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

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in Lowndes County, AL?

Lowndes County is in Zone 8a with an average last frost of March 15. Plan your Radish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lowndes County, AL?

Lowndes County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 15 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lowndes County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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 Lowndes County, AL. Local conditions may vary. Last updated: April 2026.