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When to Plant Pomegranate in Starr County, TX

Starr County, Texas Zone 9b May

Your May game plan for Starr County, Texas

Each item below is timed to Starr County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 3
Avg. first frost December 16
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.3 hrs

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Pomegranates are drought-tolerant shrubs or small trees producing fruits filled with jewel-like, sweet-tart arils. They thrive in hot, dry climates and make excellent hedges.

Starr County, Texas is in USDA Zone 9b. The average last spring frost is February 3 and the first fall frost is December 16, giving you a growing season of approximately 316 days.

At an elevation of 2,451 feet, Starr County receives approximately 55.4 inches of rainfall annually with predominantly loam soil. Summer highs average 98°F, so Pomegranate may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Pomegranate root diseases.

Starr County, TX (Zone 9b) Year-round
316 days
Last Spring Frost February 3
316 growing days
First Fall Frost December 16

Starr County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Feb 1
Recommended (50%) ✓ Fits season
Transplant: Feb 17
Safe Start (90%) ✓ Fits season
Transplant: Mar 17

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 Starr County

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

Soil pH

Your soil pH (6.8–7.5) is within Pomegranate's preferred range (5.5–7.5).

Soil Texture

The loam soil in Starr County is excellent for Pomegranate — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Pomegranate.

How to Plant Pomegranate

120"
Between Plants
144"
Between Rows

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/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 Pomegranate

Pomegranate needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Pomegranate Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 2.2" 1.9" 0.3" 💧 Light watering
Mar 2.2" 3.4" 0" ✅ Rainfall sufficient
Apr 2.2" 6.6" 0" ✅ Rainfall sufficient
May 2.2" 8.8" 0" ✅ Rainfall sufficient
Jun 2.2" 7.6" 0" ✅ Rainfall sufficient
Jul 2.2" 7" 0" ✅ Rainfall sufficient
Aug 2.2" 6.4" 0" ✅ Rainfall sufficient
Sep 2.2" 4.9" 0" ✅ Rainfall sufficient
Oct 2.2" 4" 0" ✅ Rainfall sufficient
Nov 2.2" 1.6" 0.6" 💧 Light watering
Dec 2.2" 1.6" 0.6" 💧 Light watering

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

Pomegranate 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.

Pomegranate needs ~21,444 GDD — county provides 7,449 GDD May not mature

Pomegranate Planting Timeline — Starr County, TX

Pomegranate Planting Calendar

Activity When Date Range
Transplant Outdoors February 17 Feb 17 – Mar 3

· 120" apart · Rows 144" apart

Month-by-Month Timeline

MonthActivities
January
February Transplant Outdoors
March Transplant Outdoors
April
May
June
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 9b

📆 Growing Season

316 days in Starr County

Growing Tips for Pomegranate in Starr County

Direct sow Pomegranate outdoors after February 03 in Starr County when soil has warmed and frost danger has passed.

With summer highs reaching 98°F in Starr County, provide afternoon shade for Pomegranate and water deeply in the morning.

Your 317.0-day growing season in Starr County is tight for Pomegranate (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in full sun with well-drained soil. Water deeply but infrequently. Prune to maintain shape and remove suckers. Harvest when fruits have developed full color and sound metallic when tapped.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pomegranate in Starr County, TX?

Starr County is in Zone 9b with an average last frost of February 3. Plan your Pomegranate planting based on this frost date — see the calendar above for exact timing.

What planting zone is Starr County, TX?

Starr County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 3 and first fall frost is December 16.

🌱

Your Starr County Garden Planner — Free

A 24-page printable planner built for Starr 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 Starr 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.