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When to Plant Radish in Freestone County, TX

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.

Freestone County, Texas is in USDA Zone 8a. The average last spring frost is March 11 and the first fall frost is November 13, giving you a growing season of approximately 247 days.

At an elevation of 398 feet, Freestone County receives approximately 71.4 inches of rainfall annually with predominantly clay soil. Summer highs average 93ยฐF, 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.

Freestone County, TX (Zone 8a) Long season
247 days
Last Spring Frost March 11
247 growing days
First Fall Frost November 13

Freestone County Soil Profile

Soil Type

Clay

Soil pH

6.9-7.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (195 days to spare)
Transplant: Mar 6 🍅 Harvest: Apr 3 – Apr 24
Recommended (50%) ✓ Fits season (198 days to spare)
Transplant: Mar 11 🍅 Harvest: Apr 8 – Apr 29
Safe Start (90%) ✓ Fits season (193 days to spare)
Transplant: Apr 3 🍅 Harvest: May 1 – May 22

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 Freestone County

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

Soil pH

Your soil pH (6.9โ€“7.9) is more alkaline than Radish prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Your soil has 46% clay, which can cause forked or stunted roots for Radish. Use raised beds with loose, sandy mix for best results.

Organic Matter

Organic matter is moderate (3.1%). 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 247-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
1.2″/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€” 1.8" 0" โ„๏ธ Dormant
Feb โ€” 2.7" 0" โ„๏ธ Dormant
Mar 2.2" 4.8" 0" โœ… Rainfall sufficient
Apr 2.2" 7" 0" โœ… Rainfall sufficient
May 2.2" 12.2" 0" โœ… Rainfall sufficient
Jun 2.2" 10.3" 0" โœ… Rainfall sufficient
Jul 2.2" 8.2" 0" โœ… Rainfall sufficient
Aug 2.2" 9.1" 0" โœ… Rainfall sufficient
Sep 2.2" 6.1" 0" โœ… Rainfall sufficient
Oct 2.2" 5" 0" โœ… Rainfall sufficient
Nov 2.2" 2.3" 0" โœ… Rainfall sufficient
Dec โ€” 1.9" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Freestone 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 ~563 GDD — county provides 4,878 GDD Excellent fit

Radish Planting Timeline โ€” Freestone County, TX

Radish Planting Calendar

Activity When Date Range
Direct Sow February 25 Feb 25 โ€“ Mar 18
Harvest March 25 Mar 25 โ€“ Apr 15
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 Direct Sow
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: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

247 days in Freestone County

Growing Tips for Radish in Freestone County

Direct sow Radish outdoors after March 11 in Freestone County when soil has warmed and frost danger has passed.

With Freestone County's clay soil (46% clay), work in 3-4 inches of compost before planting Radish. Avoid tilling when soil is wet to prevent compaction.

Summer highs in Freestone County reach 93ยฐF โ€” grow Radish as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 247.0-day season in Freestone 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 Freestone County, TX?

Freestone County is in Zone 8a with an average last frost of March 11. Plan your Radish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Freestone County, TX?

Freestone County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 11 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Freestone 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 Freestone County, TX. Local conditions may vary. Last updated: April 2026.