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When to Plant Radish in Bosque 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.

Bosque County, Texas is in USDA Zone 8a. The average last spring frost is March 14 and the first fall frost is November 16, giving you a growing season of approximately 247 days.

At an elevation of 1,846 feet, Bosque County receives approximately 64.5 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.

Bosque County, TX (Zone 8a) Long season
247 days
Last Spring Frost March 14
247 growing days
First Fall Frost November 16

Bosque County Soil Profile

Soil Type

Clay

Soil pH

6.8-7.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (199 days to spare)
Transplant: Mar 6 🍅 Harvest: Apr 3 – Apr 24
Recommended (50%) ✓ Fits season (198 days to spare)
Transplant: Mar 14 🍅 Harvest: Apr 11 – May 2
Safe Start (90%) ✓ Fits season (188 days to spare)
Transplant: Apr 8 🍅 Harvest: May 6 – May 27

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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Radish needs ~563 GDD — county provides 4,878 GDD Excellent fit

Radish Planting Timeline โ€” Bosque County, TX

Radish Planting Calendar

Activity When Date Range
Direct Sow February 28 Feb 28 โ€“ Mar 21
Fall Sowing September 7 Sep 7 โ€“ Sep 21
Harvest March 28 Mar 28 โ€“ Apr 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

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

247 days

Growing Tips for Bosque 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 Bosque County, TX?

Bosque County is in Zone 8a with an average last frost of March 14. Plan your Radish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Bosque County, TX?

Bosque County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 14 and first fall frost is November 16.

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Plan Your Garden with Confidence

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