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When to Plant Horseradish in Leflore County, MS

Leflore County, Mississippi Zone 8b May

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Avg. last frost March 8
Avg. first frost November 15
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 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.

Leflore County, Mississippi is in USDA Zone 8b. The average last spring frost is March 8 and the first fall frost is November 15, giving you a growing season of approximately 252 days.

At an elevation of 115 feet, Leflore County receives approximately 58.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Horseradish during the growing season. Clay soil retains moisture well for Horseradish, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Horseradish root diseases.

Leflore County, MS (Zone 8b) Long season
252 days
Last Spring Frost March 8
252 growing days
First Fall Frost November 15

Leflore County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (37 days to spare)
Transplant: Mar 16 🍅 Harvest: Jul 20 – Sep 28
Recommended (50%) ✓ Fits season (42 days to spare)
Transplant: Mar 22 🍅 Harvest: Jul 26 – Oct 4
Safe Start (90%) ✓ Fits season (38 days to spare)
Transplant: Apr 9 🍅 Harvest: Aug 13 – Oct 22

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 Leflore County

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

Soil pH

Your soil pH (5.3–6.4) is more acidic than Horseradish prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Leflore County is excellent for Horseradish — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Horseradish.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Horseradish.

How to Plant Horseradish

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 4.3" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 4.3" 6" 0" ✅ Rainfall sufficient
Apr 4.3" 5" 0" ✅ Rainfall sufficient
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 5.6" 0" ✅ Rainfall sufficient
Jul 4.3" 5.8" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 4.8" 0" ✅ Rainfall sufficient
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4.3" 4.2" 0.1" 💧 Light watering
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Leflore 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 ~3,075 GDD — county provides 5,166 GDD Excellent fit

Horseradish Planting Timeline — Leflore County, MS

Horseradish Planting Calendar

Activity When Date Range
Transplant Outdoors March 22 Mar 22 – Apr 5
Harvest July 26 Jul 26 – Oct 4

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

252 days in Leflore County

Growing Tips for Horseradish in Leflore County

Direct sow Horseradish outdoors after March 08 in Leflore County when soil has warmed and frost danger has passed.

With Leflore County's clay soil (31% clay), work in 3-4 inches of compost before planting Horseradish. Avoid tilling when soil is wet to prevent compaction.

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 Leflore County, MS?

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

What planting zone is Leflore County, MS?

Leflore County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 8 and first fall frost is November 15.

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Your Leflore County Garden Planner — Free

A 24-page printable planner built for Leflore County (Zone 8b). 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 Leflore County, MS. 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.