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When to Plant Daikon in Victoria 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.

Victoria County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is November 28, giving you a growing season of approximately 275 days.

At an elevation of 3,908 feet, Victoria County receives approximately 57.3 inches of rainfall annually with predominantly loam soil. Summer highs average 101ยฐF, so Daikon may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Daikon root diseases.

Victoria County, TX (Zone 9a) Year-round
275 days
Last Spring Frost February 26
275 growing days
First Fall Frost November 28

Victoria County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (196 days to spare)
Transplant: Feb 12 🍅 Harvest: Apr 9 – May 7
Recommended (50%) ✓ Fits season (191 days to spare)
Transplant: Feb 26 🍅 Harvest: Apr 23 – May 21
Safe Start (90%) ✓ Fits season (188 days to spare)
Transplant: Mar 21 🍅 Harvest: May 16 – Jun 13

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 Victoria County

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

Soil pH

Your soil pH (6.7โ€“7.4) is more alkaline than Daikon prefers (5.8โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Victoria County is excellent for Daikon โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Daikon.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Daikon.

How to Plant Daikon

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Daikon

6
successive plantings in your 275-day season

Sow every 5.7 weeks. Last sowing by Sep 19 to harvest before frost.

For a dedicated fall crop, sow by Oct 03.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 1,051 gal / 100 sq ft

Monthly Watering Guide for Daikon

Daikon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Daikon Needs Rainfall You Supplement Action
Jan โ€” 1.7" 0" โ„๏ธ Dormant
Feb 4.3" 2.1" 2.2" ๐Ÿšฟ Regular watering
Mar 4.3" 3.8" 0.5" ๐Ÿ’ง Light watering
Apr 4.3" 5.6" 0" โœ… Rainfall sufficient
May 4.3" 10" 0" โœ… Rainfall sufficient
Jun 4.3" 8.8" 0" โœ… Rainfall sufficient
Jul 4.3" 6.6" 0" โœ… Rainfall sufficient
Aug 4.3" 6.3" 0" โœ… Rainfall sufficient
Sep 4.3" 5.7" 0" โœ… Rainfall sufficient
Oct 4.3" 3.4" 0.9" ๐Ÿ’ง Light watering
Nov 4.3" 1.9" 2.4" ๐Ÿšฟ Regular watering
Dec โ€” 1.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Febโ€“Nov in Victoria County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Daikon 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.

Daikon needs ~1,545 GDD — county provides 7,107 GDD Excellent fit

Daikon Planting Timeline โ€” Victoria County, TX

Daikon Planting Calendar

Activity When Date Range
Direct Sow February 5 Feb 5 โ€“ Feb 26
Harvest April 2 Apr 2 โ€“ Apr 30
Fall Sowing October 3 Oct 3 โ€“ Oct 17

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Direct Sow
March โ€”
April Harvest
May โ€”
June โ€”
July โ€”
August โ€”
September โ€”
October Fall Sowing
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

50โ€“70 days

๐Ÿงช Soil pH

Needs 5.8โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

275 days in Victoria County

Growing Tips for Daikon in Victoria County

Direct sow Daikon outdoors after February 26 in Victoria County when soil has warmed and frost danger has passed.

With summer highs reaching 101ยฐF in Victoria County, provide afternoon shade for Daikon and water deeply in the morning.

Common pests for Daikon 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 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Daikon in Victoria County, TX?

Victoria County is in Zone 9a with an average last frost of February 26. Plan your Daikon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Victoria County, TX?

Victoria County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is November 28.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Victoria County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Victoria County, TX. Local conditions may vary. Last updated: April 2026.