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When to Plant Radish in Victoria 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.

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 Radish may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radish 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 (231 days to spare)
Transplant: Feb 12 🍅 Harvest: Mar 12 – Apr 2
Recommended (50%) ✓ Fits season (226 days to spare)
Transplant: Feb 26 🍅 Harvest: Mar 26 – Apr 16
Safe Start (90%) ✓ Fits season (223 days to spare)
Transplant: Mar 21 🍅 Harvest: Apr 18 – May 9

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 Radish's growing requirements.

Soil pH

Your soil pH (6.7โ€“7.4) is more alkaline than Radish prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Radish.

Organic Matter

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

How to Plant Radish

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

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

Succession Planting Radish

15
successive plantings in your 275-day season

Sow every 2.4 weeks. Last sowing by Oct 24 to harvest before frost.

For a dedicated fall crop, sow by Oct 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

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€” 1.7" 0" โ„๏ธ Dormant
Feb 2.2" 2.1" 0.1" ๐Ÿ’ง Light watering
Mar 2.2" 3.8" 0" โœ… Rainfall sufficient
Apr 2.2" 5.6" 0" โœ… Rainfall sufficient
May 2.2" 10" 0" โœ… Rainfall sufficient
Jun 2.2" 8.8" 0" โœ… Rainfall sufficient
Jul 2.2" 6.6" 0" โœ… Rainfall sufficient
Aug 2.2" 6.3" 0" โœ… Rainfall sufficient
Sep 2.2" 5.7" 0" โœ… Rainfall sufficient
Oct 2.2" 3.4" 0" โœ… Rainfall sufficient
Nov 2.2" 1.9" 0.3" ๐Ÿ’ง Light 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.

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 ~734 GDD — county provides 7,107 GDD Excellent fit

Radish Planting Timeline โ€” Victoria County, TX

Radish Planting Calendar

Activity When Date Range
Direct Sow February 5 Feb 5 โ€“ Feb 26
Harvest March 5 Mar 5 โ€“ Mar 26
Fall Sowing October 3 Oct 3 โ€“ Oct 17

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

Month-by-Month Timeline

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

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 9a

๐Ÿ“† Growing Season

275 days in Victoria County

Growing Tips for Radish in Victoria County

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

Summer highs in Victoria County reach 101ยฐF โ€” grow Radish as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 276.0-day season in Victoria 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.

With 57" of annual rainfall in Victoria County, ensure good drainage for Radish โ€” excess moisture can promote root rot and fungal diseases.

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 Victoria County, TX?

Victoria County is in Zone 9a with an average last frost of February 26. Plan your Radish 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.