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When to Plant Horseradish in Gulf County, FL

Gulf County, Florida Zone 9b May

Your May game plan for Gulf County, Florida

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Avg. last frost February 25
Avg. first frost November 28
Soil temp (4") 74°F
Watering Moderate
Pest pressure High
Daylight 13.5 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.

Gulf County, Florida is in USDA Zone 9b. The average last spring frost is February 25 and the first fall frost is November 28, giving you a growing season of approximately 276 days.

At an elevation of 313 feet, Gulf County receives approximately 51.7 inches of rainfall annually with predominantly sand soil. Summer highs average 92°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.

Gulf County, FL (Zone 9b) Year-round
276 days
Last Spring Frost February 25
276 growing days
First Fall Frost November 28
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Gulf County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (76 days to spare)
Transplant: Feb 22 🍅 Harvest: Jun 28 – Sep 6
Recommended (50%) ✓ Fits season (66 days to spare)
Transplant: Mar 11 🍅 Harvest: Jul 15 – Sep 23
Safe Start (90%) ✓ Fits season (67 days to spare)
Transplant: Mar 31 🍅 Harvest: Aug 4 – Oct 13

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 Gulf County

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

Soil pH

Your soil pH (4.8–5.9) is more acidic than Horseradish prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Gulf 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 (1.4%). 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
0.5″/week
Watering frequency 1-2 times/week
Season total 1,272 gal / 100 sq ft

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 2" 0" ❄️ Dormant
Feb 4.3" 2.6" 1.7" 💧 Light watering
Mar 4.3" 3.1" 1.2" 💧 Light watering
Apr 4.3" 2.4" 1.9" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 7.1" 0" ✅ Rainfall sufficient
Jul 4.3" 8.4" 0" ✅ Rainfall sufficient
Aug 4.3" 7" 0" ✅ Rainfall sufficient
Sep 4.3" 6.6" 0" ✅ Rainfall sufficient
Oct 4.3" 4.6" 0" ✅ Rainfall sufficient
Nov 4.3" 2.2" 2.1" 💧 Light watering
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Nov in Gulf 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 ~2,850 GDD — county provides 5,263 GDD Excellent fit

Horseradish Planting Timeline — Gulf County, FL

Horseradish Planting Calendar

Activity When Date Range
Transplant Outdoors March 11 Mar 11 – Mar 25
Harvest July 15 Jul 15 – Sep 23

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May
June
July Harvest
August Harvest
September Harvest
October
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_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

276 days in Gulf County

Growing Tips for Horseradish in Gulf County

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

Sandy soil in Gulf 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 Gulf County, FL?

Gulf County is in Zone 9b with an average last frost of February 25. Plan your Horseradish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gulf County, FL?

Gulf County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 25 and first fall frost is November 28.

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Your Gulf County Garden Planner — Free

A 24-page printable planner built for Gulf County (Zone 9b). 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 Gulf County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

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