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When to Plant Snap Peas in Dimmit County, TX

Dimmit County, Texas Zone 9a May

Your May game plan for Dimmit County, Texas

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Dimmit County, Texas.

Avg. last frost February 26
Avg. first frost December 1
Soil temp (4") 68°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Collect snap peas at their peak

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Coming up in June — start thinking about
  • First harvests: snap peas

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Snap peas have edible pods with plump, sweet peas inside, combining the best features of snow peas and garden peas. They are a garden favorite for fresh eating.

Dimmit County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is December 1, giving you a growing season of approximately 278 days.

At an elevation of 2,638 feet, Dimmit County receives approximately 63.2 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Snap Peas during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Snap Peas root diseases.

Dimmit County, TX (Zone 9a) Year-round
278 days
Last Spring Frost February 26
278 growing days
First Fall Frost December 1
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Dimmit County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (162 days to spare)
Start indoors: Jan 2 Transplant: Feb 20 🍅 Harvest: Apr 17 – Jun 12
Recommended (50%) ✓ Fits season (159 days to spare)
Start indoors: Jan 15 Transplant: Mar 5 🍅 Harvest: Apr 30 – Jun 25
Safe Start (90%) ✓ Fits season (153 days to spare)
Start indoors: Feb 8 Transplant: Mar 29 🍅 Harvest: May 24 – Jul 19

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 Dimmit County

How your county's soil matches Snap Peas's growing requirements.

Soil pH

Your soil pH (6.5–7.3) is within Snap Peas's preferred range (6.0–7.5).

Soil Texture

The loam soil in Dimmit County is excellent for Snap Peas — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Snap Peas.

How to Plant Snap Peas

1"
Planting Depth
4"
Between Plants
18"
Between Rows

Succession Planting Snap Peas

6
successive plantings in your 278-day season

Sow every 6.3 weeks. Last sowing by Sep 22 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Snap Peas

Snap Peas needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Snap Peas Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 3" 2" 1" 💧 Light watering
Mar 3" 4" 0" ✅ Rainfall sufficient
Apr 3" 6.3" 0" ✅ Rainfall sufficient
May 3" 9.1" 0" ✅ Rainfall sufficient
Jun 3" 11.3" 0" ✅ Rainfall sufficient
Jul 3" 8.6" 0" ✅ Rainfall sufficient
Aug 3" 8.1" 0" ✅ Rainfall sufficient
Sep 3" 5.3" 0" ✅ Rainfall sufficient
Oct 3" 3.5" 0" ✅ Rainfall sufficient
Nov 3" 2" 1" 💧 Light watering
Dec 3" 1.4" 1.6" 🚿 Regular watering

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

Snap Peas 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.

Snap Peas needs ~1,281 GDD — county provides 5,719 GDD Excellent fit

Snap Peas Planting Timeline — Dimmit County, TX

Snap Peas Planting Calendar

Activity When Date Range
Start Indoors January 15 Jan 15 – Jan 29
Transplant Outdoors March 5 Mar 5 – Mar 19
Direct Sow February 26 Feb 26 – Mar 19
Harvest April 30 Apr 30 – Jun 25

Plant 1" deep · 4" apart · Rows 18" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

55–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 9a

📆 Growing Season

278 days in Dimmit County

Growing Tips for Snap Peas in Dimmit County

Direct sow Snap Peas outdoors after February 26 in Dimmit County when soil has warmed and frost danger has passed.

Summer highs in Dimmit County reach 94°F — grow Snap Peas as a spring or fall crop. Use shade cloth if planting in summer.

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

General growing tips

Direct sow in early spring as soon as soil can be worked. Provide a trellis 4-6 feet tall. Harvest when pods are plump and snap cleanly when bent.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Snap Peas in Dimmit County, TX?

Dimmit County is in Zone 9a with an average last frost of February 26. Plan your Snap Peas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dimmit County, TX?

Dimmit County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is December 1.

🌱

Your Dimmit County Garden Planner — Free

A 24-page printable planner built for Dimmit County (Zone 9a). 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 Dimmit 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.