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When to Plant Radish in Leon 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.

Leon County, Texas is in USDA Zone 8a. The average last spring frost is March 9 and the first fall frost is November 14, giving you a growing season of approximately 250 days.

At an elevation of 226 feet, Leon County receives approximately 72.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Radish during the growing season. 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.

Leon County, TX (Zone 8a) Long season
250 days
Last Spring Frost March 9
250 growing days
First Fall Frost November 14

Leon County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (202 days to spare)
Transplant: Mar 3 🍅 Harvest: Mar 31 – Apr 21
Recommended (50%) ✓ Fits season (201 days to spare)
Transplant: Mar 9 🍅 Harvest: Apr 6 – Apr 27
Safe Start (90%) ✓ Fits season (191 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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Radish needs ~520 GDD — county provides 4,562 GDD Excellent fit

Radish Planting Timeline โ€” Leon County, TX

Radish Planting Calendar

Activity When Date Range
Direct Sow February 23 Feb 23 โ€“ Mar 16
Fall Sowing September 5 Sep 5 โ€“ Sep 19
Harvest March 23 Mar 23 โ€“ Apr 13

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

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

22โ€“35 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

250 days

Growing Tips for Leon 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

Level Up Your Garden

Frequently Asked Questions

When should I plant Radish in Leon County, TX?

Leon County is in Zone 8a with an average last frost of March 9. Plan your Radish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Leon County, TX?

Leon County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 9 and first fall frost is November 14.

๐ŸŒฑ

Plan Your Garden with Confidence

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