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When to Plant Peas in Dallas County, TX

Dallas County, Texas Zone 8b May

Your May planting checklist for Dallas County, Texas

Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 8
Avg. first frost November 20
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Bring in the peas

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

A few tasks this May that'll pay off in June
  • First harvests: peas

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Peas are a cool-season legume that fixes nitrogen in the soil. Garden peas are shelled, while snap and snow peas are eaten pod and all.

Dallas County, Texas is in USDA Zone 8b. The average last spring frost is March 8 and the first fall frost is November 20, giving you a growing season of approximately 257 days.

At an elevation of 67 feet, Dallas County receives approximately 65.7 inches of rainfall annually with predominantly clay soil. Summer highs average 97°F, so Peas may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Peas, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Peas root diseases.

Dallas County, TX (Zone 8b) Long season
257 days
Last Spring Frost March 8
257 growing days
First Fall Frost November 20
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Dallas County Soil Profile

Soil Type

Clay

Soil pH

6.7-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (142 days to spare)
Start indoors: Jan 25 Transplant: Mar 1 🍅 Harvest: Apr 26 – Jun 21
Recommended (50%) ✓ Fits season (145 days to spare)
Start indoors: Feb 1 Transplant: Mar 8 🍅 Harvest: May 3 – Jun 28
Safe Start (90%) ✓ Fits season (130 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jun 4 – Jul 30

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 Dallas County

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

Soil pH

Your soil pH (6.7–8.4) is more alkaline than Peas prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (48% clay) in Dallas County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Peas.

How to Plant Peas

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Peas

5
successive plantings in your 257-day season

Sow every 6.3 weeks. Last sowing by Sep 11 to harvest before frost.

For a dedicated fall crop, sow by Sep 11.

Plant Water Budget

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

Monthly Watering Guide for Peas

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 Peas Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 2.5" 0" ❄️ Dormant
Mar 3" 4.4" 0" ✅ Rainfall sufficient
Apr 3" 7.1" 0" ✅ Rainfall sufficient
May 3" 9.2" 0" ✅ Rainfall sufficient
Jun 3" 10.4" 0" ✅ Rainfall sufficient
Jul 3" 7.4" 0" ✅ Rainfall sufficient
Aug 3" 8.3" 0" ✅ Rainfall sufficient
Sep 3" 6" 0" ✅ Rainfall sufficient
Oct 3" 4.6" 0" ✅ Rainfall sufficient
Nov 3" 2.4" 0.6" 💧 Light watering
Dec 1.7" 0" ❄️ Dormant

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

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.

Peas needs ~1,422 GDD — county provides 5,846 GDD Excellent fit

Peas Planting Timeline — Dallas County, TX

Peas Planting Calendar

Activity When Date Range
Start Indoors February 1 Feb 1 – Feb 15
Transplant Outdoors March 8 Mar 8 – Mar 22
Direct Sow February 22 Feb 22 – Mar 15
Harvest May 3 May 3 – Jun 28
Fall Sowing September 11 Sep 11 – Sep 25

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April
May Harvest
June Harvest
July
August
September Fall Sowing
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: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

257 days in Dallas County

Growing Tips for Peas in Dallas County

Direct sow Peas outdoors after March 08 in Dallas County when soil has warmed and frost danger has passed.

With Dallas County's clay soil (48% clay), work in 3-4 inches of compost before planting Peas. Avoid tilling when soil is wet to prevent compaction.

Summer highs in Dallas County reach 97°F — grow Peas as a spring or fall crop. Use shade cloth if planting in summer.

Common pests for 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 as early as soil can be worked in spring. Inoculate seeds with rhizobium for best nitrogen fixation. Provide trellising for climbing varieties.

Recommended Peas Varieties for Dallas County

Heat-tolerant peas — plant very early or as fall crop

Wando (68d) Oregon Sugar Pod (60d)

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Peas Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let pods dry brown and papery on the vine.
Storage Store airtight; viable 3 years at 35°F, under 45% humidity.

Very easy to save. Self-pollinating means varieties stay true.

Frequently Asked Questions

When should I plant Peas in Dallas County, TX?

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

What planting zone is Dallas County, TX?

Dallas County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 8 and first fall frost is November 20.

🌱

Your Dallas County Garden Planner — Free

A 24-page printable planner built for Dallas County (Zone 8b). 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 Dallas 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.