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When to Plant Horseradish in Maverick County, TX

Maverick County, Texas Zone 9a May

What to do in May

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Maverick County, Texas.

Avg. last frost March 5
Avg. first frost November 21
Soil temp (4") 61°F
Watering Critical
Pest pressure High
Daylight 13.4 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.

Maverick County, Texas is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 21, giving you a growing season of approximately 261 days.

At an elevation of 4,473 feet, Maverick County receives approximately 48.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Horseradish may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Horseradish will need more frequent watering and organic matter to retain nutrients.

Maverick County, TX (Zone 9a) Long season
261 days
Last Spring Frost March 5
261 growing days
First Fall Frost November 21
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Maverick County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (58 days to spare)
Transplant: Mar 3 🍅 Harvest: Jul 7 – Sep 15
Recommended (50%) ✓ Fits season (51 days to spare)
Transplant: Mar 19 🍅 Harvest: Jul 23 – Oct 1
Safe Start (90%) ✓ Fits season (50 days to spare)
Transplant: Apr 10 🍅 Harvest: Aug 14 – Oct 23

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 Maverick County

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

Soil pH

Your soil pH (7.3–8.3) is more alkaline than Horseradish prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Maverick 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 (0.9%). 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
0.8″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,457 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 3.2" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 4.3" 2.9" 1.4" 💧 Light watering
Apr 4.3" 1.5" 2.8" 🚿 Regular watering
May 4.3" 1.2" 3.1" 🚿 Regular watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 7.5" 0" ✅ Rainfall sufficient
Aug 4.3" 10.7" 0" ✅ Rainfall sufficient
Sep 4.3" 7" 0" ✅ Rainfall sufficient
Oct 4.3" 4.2" 0.1" 💧 Light watering
Nov 4.3" 2.5" 1.8" 💧 Light watering
Dec 3.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Maverick 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 ~3,188 GDD — county provides 5,546 GDD Excellent fit

Horseradish Planting Timeline — Maverick County, TX

Horseradish Planting Calendar

Activity When Date Range
Transplant Outdoors March 19 Mar 19 – Apr 2
Harvest July 23 Jul 23 – Oct 1

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May
June
July Harvest
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 9a

📆 Growing Season

261 days in Maverick County

Growing Tips for Horseradish in Maverick County

Direct sow Horseradish outdoors after March 05 in Maverick County when soil has warmed and frost danger has passed.

Sandy soil in Maverick 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 Maverick County, TX?

Maverick County is in Zone 9a with an average last frost of March 5. Plan your Horseradish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Maverick County, TX?

Maverick County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 21.

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Your Maverick County Garden Planner — Free

A 24-page printable planner built for Maverick County (Zone 9a). 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 Maverick 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.