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When to Plant Radish in Coke 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.

Coke County, Texas is in USDA Zone 7b. The average last spring frost is March 24 and the first fall frost is November 12, giving you a growing season of approximately 233 days.

At an elevation of 3,031 feet, Coke County receives approximately 52.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Radish may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Radish will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radish root diseases.

Coke County, TX (Zone 7b) Long season
233 days
Last Spring Frost March 24
233 growing days
First Fall Frost November 12

Coke County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (183 days to spare)
Transplant: Mar 16 🍅 Harvest: Apr 13 – May 4
Recommended (50%) ✓ Fits season (184 days to spare)
Transplant: Mar 24 🍅 Harvest: Apr 21 – May 12
Safe Start (90%) ✓ Fits season (177 days to spare)
Transplant: Apr 14 🍅 Harvest: May 12 – Jun 2

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 Coke County

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

Soil pH

Your soil pH (7.5โ€“8.6) is more alkaline than Radish prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Coke County warms quickly in spring but drains fast. Radish will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.0%). Add 2-3 inches of compost before planting 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

13
successive plantings in your 233-day season

Sow every 2.4 weeks. Last sowing by Oct 08 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

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

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

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€” 3.5" 0" โ„๏ธ Dormant
Feb โ€” 3.4" 0" โ„๏ธ Dormant
Mar 2.2" 3.2" 0" โœ… Rainfall sufficient
Apr 2.2" 1.7" 0.5" ๐Ÿ’ง Light watering
May 2.2" 1.1" 1.1" ๐Ÿšฟ Regular watering
Jun 2.2" 1.9" 0.3" ๐Ÿ’ง Light watering
Jul 2.2" 8.4" 0" โœ… Rainfall sufficient
Aug 2.2" 11.8" 0" โœ… Rainfall sufficient
Sep 2.2" 6.7" 0" โœ… Rainfall sufficient
Oct 2.2" 4.1" 0" โœ… Rainfall sufficient
Nov 2.2" 2.7" 0" โœ… Rainfall sufficient
Dec โ€” 3.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Coke 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 ~627 GDD — county provides 5,126 GDD Excellent fit

Radish Planting Timeline โ€” Coke County, TX

Radish Planting Calendar

Activity When Date Range
Direct Sow March 10 Mar 10 โ€“ Mar 31
Harvest April 7 Apr 7 โ€“ Apr 28
Fall Sowing September 3 Sep 3 โ€“ Sep 17

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Direct Sow
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 7b

๐Ÿ“† Growing Season

233 days in Coke County

Growing Tips for Radish in Coke County

Direct sow Radish outdoors after March 24 in Coke County when soil has warmed and frost danger has passed.

Sandy soil in Coke County dries quickly โ€” mulch Radish with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in Coke County reach 96ยฐF โ€” grow Radish as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 233.0-day season in Coke 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 Coke County, TX?

Coke County is in Zone 7b with an average last frost of March 24. Plan your Radish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Coke County, TX?

Coke County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 24 and first fall frost is November 12.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Coke County gardeners in Zone 7b 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 Coke County, TX. Local conditions may vary. Last updated: April 2026.