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When to Plant Daikon in Bexar County, TX

Daikon is a large, mild Japanese radish that can grow over a foot long. It is excellent for pickling, stir-fries, and as a soil-breaking cover crop.

Bexar County, Texas is in USDA Zone 8b. The average last spring frost is March 11 and the first fall frost is November 17, giving you a growing season of approximately 251 days.

At an elevation of 3,197 feet, Bexar County receives approximately 52.1 inches of rainfall annually with predominantly loam soil. Summer highs average 93ยฐF, providing good warmth for Daikon during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Daikon root diseases.

Bexar County, TX (Zone 8b) Long season
251 days
Last Spring Frost March 11
251 growing days
First Fall Frost November 17

Bexar County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (172 days to spare)
Transplant: Mar 1 🍅 Harvest: Apr 26 – May 24
Recommended (50%) ✓ Fits season (167 days to spare)
Transplant: Mar 11 🍅 Harvest: May 6 – Jun 3
Safe Start (90%) ✓ Fits season (164 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 2 – Jun 30

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
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 286 gal / 100 sq ft
Daikon needs ~1,185 GDD — county provides 4,957 GDD Excellent fit

Daikon Planting Timeline โ€” Bexar County, TX

Daikon Planting Calendar

Activity When Date Range
Direct Sow February 25 Feb 25 โ€“ Mar 18
Fall Sowing September 8 Sep 8 โ€“ Sep 22
Harvest April 22 Apr 22 โ€“ May 20

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February Direct Sow
March Direct Sow
April Harvest
May Harvest
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

50โ€“70 days

Soil pH

5.8 โ€“ 7

USDA Zone

Zone 8b

Growing Season

251 days

Growing Tips for Bexar County

Direct sow in late summer for fall harvest. Loosen soil deeply before planting. Thin seedlings to 6 inches apart. Harvest before hard freeze as exposed shoulders may crack.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Level Up Your Garden

Frequently Asked Questions

When should I plant Daikon in Bexar County, TX?

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

What planting zone is Bexar County, TX?

Bexar County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 11 and first fall frost is November 17.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Bexar County gardeners in Zone 8b 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 Bexar County, TX. Local conditions may vary. Last updated: April 2026.