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When to Plant Jicama in Cabell County, WV

Cabell County, West Virginia Zone 7a May

May in Cabell County, West Virginia — your action list

Here's what deserves your attention in Cabell County, West Virginia this month. Everything below is tailored to Zone 7a and timed around your local frost dates.

Avg. last frost April 20
Avg. first frost October 22
Soil temp (4") 54°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
  1. Set out jicama seedlings

    Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.

June prep starts now
  • Starting indoors: jicama

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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.

Cabell County, West Virginia is in USDA Zone 7a. The average last spring frost is April 20 and the first fall frost is October 22, giving you a growing season of approximately 185 days.

At an elevation of 3,444 feet, Cabell County receives approximately 45.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Jicama during the growing season.

Cabell County, WV (Zone 7a) Moderate season
185 days
Last Spring Frost April 20
185 growing days
First Fall Frost October 22
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Cabell County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 24 Transplant: Apr 28 🍅 Harvest: Sep 1 – Nov 10
Recommended (50%) ✗ May not fit
Start indoors: Mar 2 Transplant: May 4 🍅 Harvest: Sep 7 – Nov 16
Safe Start (90%) ✗ May not fit
Start indoors: Mar 22 Transplant: May 24 🍅 Harvest: Sep 27 – Dec 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 Cabell County

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

Soil pH

Your soil pH (5.5–6.8) overlaps with Jicama's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Jicama.

Organic Matter

Organic matter is moderate (2.8%). 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 3.7" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 3.7" 0" ❄️ Dormant
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 3.3" 1" 💧 Light watering
Jun 4.3" 4.1" 0.2" 💧 Light watering
Jul 4.3" 5.2" 0" ✅ Rainfall sufficient
Aug 4.3" 4" 0.3" 💧 Light watering
Sep 4.3" 3.7" 0.6" 💧 Light watering
Oct 4.3" 2.5" 1.8" 💧 Light watering
Nov 3.7" 0" ❄️ Dormant
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Cabell 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 ~2,288 GDD — county provides 2,821 GDD Good fit

Jicama Planting Timeline — Cabell County, WV

Jicama Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors May 4 May 4 – May 18
Direct Sow April 27 Apr 27 – May 18
Harvest September 7 Sep 7 – Nov 16

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Direct Sow
May Transplant Outdoors Direct Sow
June
July
August
September Harvest
October Harvest
November Harvest
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: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

185 days in Cabell County

Growing Tips for Jicama in Cabell County

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

Your 185.0-day growing season in Cabell County is tight for Jicama (120.0-180.0 days to maturity). Start indoors and choose early-maturing varieties.

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 Cabell County, WV?

Cabell County is in Zone 7a with an average last frost of April 20. Plan your Jicama planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cabell County, WV?

Cabell County, West Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 20 and first fall frost is October 22.

🌱

Your Cabell County Garden Planner — Free

A 24-page printable planner built for Cabell County (Zone 7a). 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 Cabell County, WV. 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.