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When to Plant Horseradish in Winkler County, TX

Winkler County, Texas Zone 8a May

Winkler County, Texas gardeners: here's your May plan

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 25
Avg. first frost November 10
Soil temp (4") 66°F
Watering Critical
Pest pressure Moderate
Daylight 13.6 hrs

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Horseradish is a vigorous perennial grown for its pungent, spicy roots used as a condiment. Once established, it can be difficult to eradicate, so choose its location carefully.

Winkler County, Texas is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 10, giving you a growing season of approximately 230 days.

At an elevation of 1,153 feet, Winkler County receives approximately 51.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Horseradish during the growing season. Sandy soil warms quickly in spring — great for early planting — but Horseradish will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Horseradish root diseases.

Winkler County, TX (Zone 8a) Long season
230 days
Last Spring Frost March 25
230 growing days
First Fall Frost November 10
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Winkler County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (16 days to spare)
Transplant: Mar 29 🍅 Harvest: Aug 2 – Oct 11
Recommended (50%) ✓ Fits season (20 days to spare)
Transplant: Apr 8 🍅 Harvest: Aug 12 – Oct 21
Safe Start (90%) ✓ Fits season (13 days to spare)
Transplant: May 2 🍅 Harvest: Sep 5 – Nov 14

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 Winkler County

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

Soil pH

Your soil pH (7.5–8.2) is more alkaline than Horseradish prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Winkler County warms quickly in spring but drains fast. Horseradish will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Horseradish.

Organic Matter

Organic matter is low (1.0%). Add 2-3 inches of compost before planting Horseradish.

How to Plant Horseradish

1"
Planting Depth
30"
Between Plants
42"
Between Rows

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 897 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Horseradish

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

Month Horseradish Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4.3" 3.3" 1" 💧 Light watering
Apr 4.3" 1.5" 2.8" 🚿 Regular watering
May 4.3" 1" 3.3" 🚿 Regular watering
Jun 4.3" 2" 2.3" 🚿 Regular watering
Jul 4.3" 8.1" 0" ✅ Rainfall sufficient
Aug 4.3" 10.2" 0" ✅ Rainfall sufficient
Sep 4.3" 6.7" 0" ✅ Rainfall sufficient
Oct 4.3" 5" 0" ✅ Rainfall sufficient
Nov 4.3" 3.3" 1" 💧 Light watering
Dec 3.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Winkler County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Horseradish 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" — every day above 50°F 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.

Horseradish needs ~2,738 GDD — county provides 4,197 GDD Excellent fit

Horseradish Planting Timeline — Winkler County, TX

Horseradish Planting Calendar

Activity When Date Range
Transplant Outdoors April 8 Apr 8 – Apr 22
Harvest August 12 Aug 12 – Oct 21

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May
June
July
August Harvest
September Harvest
October Harvest
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

230 days in Winkler County

Growing Tips for Horseradish in Winkler County

Direct sow Horseradish outdoors after March 25 in Winkler County when soil has warmed and frost danger has passed.

Sandy soil in Winkler County dries quickly — mulch Horseradish with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Horseradish in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Plant root cuttings at a 45-degree angle in early spring. Harvest roots in late fall for strongest flavor. Contain the plant with barriers or grow in large containers.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Horseradish in Winkler County, TX?

Winkler County is in Zone 8a with an average last frost of March 25. Plan your Horseradish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Winkler County, TX?

Winkler County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 10.

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Your Winkler County Garden Planner — Free

A 24-page printable planner built for Winkler County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Winkler County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.