Blog

When to Plant Horseradish in Deaf Smith County, TX

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.

Deaf Smith County, Texas is in USDA Zone 7a. The average last spring frost is April 16 and the first fall frost is October 24, giving you a growing season of approximately 191 days.

At an elevation of 4,473 feet, Deaf Smith County receives approximately 49 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Horseradish may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Horseradish will need more frequent watering and organic matter to retain nutrients.

Deaf Smith County, TX (Zone 7a) Moderate season
191 days
Last Spring Frost April 16
191 growing days
First Fall Frost October 24

Deaf Smith County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.7-8.4

Drainage

Well Drained

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 โ€” 3.5" 0" โ„๏ธ Dormant
Feb โ€” 2.7" 0" โ„๏ธ Dormant
Mar โ€” 2.9" 0" โ„๏ธ Dormant
Apr 4.3" 1.6" 2.7" ๐Ÿšฟ Regular watering
May 4.3" 1.2" 3.1" ๐Ÿšฟ Regular watering
Jun 4.3" 1.8" 2.5" ๐Ÿšฟ Regular watering
Jul 4.3" 8.9" 0" โœ… Rainfall sufficient
Aug 4.3" 9.6" 0" โœ… Rainfall sufficient
Sep 4.3" 6.4" 0" โœ… Rainfall sufficient
Oct 4.3" 4.4" 0" โœ… Rainfall sufficient
Nov โ€” 2.6" 0" โ„๏ธ Dormant
Dec โ€” 3.3" 0" โ„๏ธ Dormant

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

Horseradish Planting Timeline โ€” Deaf Smith County, TX

Horseradish Planting Calendar

Activity When Date Range
Transplant Outdoors April 30 Apr 30 โ€“ May 14
Harvest September 3 Sep 3 โ€“ Nov 12

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May Transplant Outdoors
June โ€”
July โ€”
August โ€”
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

Moderate โ€” regular watering

๐Ÿ“… Days to Maturity

120โ€“180 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: N/A

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

191 days in Deaf Smith County

Growing Tips for Deaf Smith County

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 Deaf Smith County, TX?

Deaf Smith County is in Zone 7a with an average last frost of April 16. Plan your Horseradish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Deaf Smith County, TX?

Deaf Smith County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 16 and first fall frost is October 24.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Deaf Smith County gardeners in Zone 7a 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 Deaf Smith County, TX. Local conditions may vary. Last updated: April 2026.