Blog

When to Plant Jicama in Haskell County, TX

Haskell County, Texas Zone 8a May

May to-do list for Haskell County, Texas

May is a pivotal month for Haskell County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 26
Avg. first frost November 11
Soil temp (4") 62°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
  1. Fire up the seed-starting tray: jicama

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

Instant PDF download. No spam, unsubscribe any time.

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.

Haskell County, Texas is in USDA Zone 8a. The average last spring frost is March 26 and the first fall frost is November 11, giving you a growing season of approximately 230 days.

At an elevation of 3,062 feet, Haskell County receives approximately 54.8 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Jicama during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Jicama root diseases.

Haskell County, TX (Zone 8a) Long season
230 days
Last Spring Frost March 26
230 growing days
First Fall Frost November 11

Haskell County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (18 days to spare)
Start indoors: Jan 29 Transplant: Apr 2 🍅 Harvest: Aug 6 – Oct 15
Recommended (50%) ✓ Fits season (20 days to spare)
Start indoors: Feb 5 Transplant: Apr 9 🍅 Harvest: Aug 13 – Oct 22
Safe Start (90%) ✓ Fits season (15 days to spare)
Start indoors: Feb 25 Transplant: Apr 29 🍅 Harvest: Sep 2 – Nov 11

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 Haskell County

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

Soil pH

Your soil pH (6.4–7.5) is within Jicama's preferred range (6.0–7.5).

Soil Texture

The loam soil in Haskell 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 (2.4%). 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
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 613 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 1.3" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 4.3" 3.1" 1.2" 💧 Light watering
Apr 4.3" 5.2" 0" ✅ Rainfall sufficient
May 4.3" 8.5" 0" ✅ Rainfall sufficient
Jun 4.3" 9.3" 0" ✅ Rainfall sufficient
Jul 4.3" 7" 0" ✅ Rainfall sufficient
Aug 4.3" 7.1" 0" ✅ Rainfall sufficient
Sep 4.3" 4.7" 0" ✅ Rainfall sufficient
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4.3" 1.7" 2.6" 🚿 Regular watering
Dec 1.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Haskell 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 ~2,738 GDD — county provides 4,197 GDD Excellent fit

Jicama Planting Timeline — Haskell County, TX

Jicama Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors April 9 Apr 9 – Apr 23
Direct Sow April 2 Apr 2 – Apr 23
Harvest August 13 Aug 13 – Oct 22

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 8a

📆 Growing Season

230 days in Haskell County

Growing Tips for Jicama in Haskell County

Direct sow Jicama outdoors after March 26 in Haskell County when soil has warmed and frost danger has passed.

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 Haskell County, TX?

Haskell County is in Zone 8a with an average last frost of March 26. Plan your Jicama planting based on this frost date — see the calendar above for exact timing.

What planting zone is Haskell County, TX?

Haskell County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 26 and first fall frost is November 11.

🌱

Your Haskell County Garden Planner — Free

A 24-page printable planner built for Haskell 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Haskell County, TX. 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.