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When to Plant Jicama in Quitman County, MS

Quitman County, Mississippi Zone 8a May

This month in Quitman County, Mississippi

Here's what deserves your attention in Quitman County, Mississippi this month. Everything below is tailored to Zone 8a and timed around your local frost dates.

Avg. last frost March 20
Avg. first frost November 5
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Sow jicama in trays indoors

    You're about 26 weeks out from your last frost — the perfect window to get these germinating indoors.

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Jicama is a tropical legume grown for its crisp, sweet, starchy root. It requires a very long, warm growing season but produces a refreshing, water chestnut-like tuber.

Quitman County, Mississippi is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 5, giving you a growing season of approximately 230 days.

At an elevation of 474 feet, Quitman County receives approximately 56.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, providing good warmth for Jicama during the growing season. Clay soil retains moisture well for Jicama, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Jicama root diseases.

Quitman County, MS (Zone 8a) Long season
230 days
Last Spring Frost March 20
230 growing days
First Fall Frost November 5
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Quitman County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (23 days to spare)
Start indoors: Jan 21 Transplant: Mar 25 🍅 Harvest: Jul 29 – Oct 7
Recommended (50%) ✓ Fits season (20 days to spare)
Start indoors: Jan 30 Transplant: Apr 3 🍅 Harvest: Aug 7 – Oct 16
Safe Start (90%) ✓ Fits season (20 days to spare)
Start indoors: Feb 20 Transplant: Apr 24 🍅 Harvest: Aug 28 – Nov 6

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 Quitman County

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

Soil pH

Your soil pH (5.5–6.2) is more acidic than Jicama prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Jicama.

How to Plant Jicama

0.5"
Planting Depth
6"
Between Plants
12"
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

Monthly Watering Guide for Jicama

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

Month Jicama Needs Rainfall You Supplement Action
Jan 4.7" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 4.3" 5.9" 0" ✅ Rainfall sufficient
Apr 4.3" 4.6" 0" ✅ Rainfall sufficient
May 4.3" 4.9" 0" ✅ Rainfall sufficient
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.3" 0" ✅ Rainfall sufficient
Aug 4.3" 4.8" 0" ✅ Rainfall sufficient
Sep 4.3" 4.8" 0" ✅ Rainfall sufficient
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4.3" 4.1" 0.2" 💧 Light watering
Dec 4.2" 0" ❄️ Dormant

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

Jicama 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.

Jicama needs ~2,850 GDD — county provides 4,370 GDD Excellent fit

Jicama Planting Timeline — Quitman County, MS

Jicama Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 – Feb 13
Transplant Outdoors April 3 Apr 3 – Apr 17
Direct Sow March 27 Mar 27 – Apr 17
Harvest August 7 Aug 7 – Oct 16

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Direct Sow
April Transplant Outdoors Direct Sow
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 · Natural rainfall sufficient

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

230 days in Quitman County

Growing Tips for Jicama in Quitman County

Direct sow Jicama outdoors after March 20 in Quitman County when soil has warmed and frost danger has passed.

With Quitman County's clay soil (29% clay), work in 3-4 inches of compost before planting Jicama. Avoid tilling when soil is wet to prevent compaction.

Common pests for Jicama in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8-10 weeks before last frost. Pinch off flowers to direct energy to root development. Harvest before first frost when roots are 3-6 inches across.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Jicama in Quitman County, MS?

Quitman County is in Zone 8a with an average last frost of March 20. Plan your Jicama planting based on this frost date — see the calendar above for exact timing.

What planting zone is Quitman County, MS?

Quitman County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 5.

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Your Quitman County Garden Planner — Free

A 24-page printable planner built for Quitman 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 Quitman 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.