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When to Plant Snap Peas in Hidalgo County, NM

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.

Hidalgo County, New Mexico is in USDA Zone 7b. The average last spring frost is April 22 and the first fall frost is October 28, giving you a growing season of approximately 189 days.

At an elevation of 2,926 feet, Hidalgo County receives approximately 11 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94ยฐF, providing good warmth for Snap Peas during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Snap Peas will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Snap Peas successfully. Mulch heavily to conserve soil moisture.

Hidalgo County, NM (Zone 7b) Moderate season
189 days
Last Spring Frost April 22
189 growing days
First Fall Frost October 28

Hidalgo County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (62 days to spare)
Start indoors: Feb 27 Transplant: May 1 🍅 Harvest: Jun 26 – Aug 21
Recommended (50%) ✓ Fits season (63 days to spare)
Start indoors: Mar 4 Transplant: May 6 🍅 Harvest: Jul 1 – Aug 26
Safe Start (90%) ✓ Fits season (53 days to spare)
Start indoors: Mar 29 Transplant: May 31 🍅 Harvest: Jul 26 – Sep 20

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 Hidalgo County

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

Soil pH

Your soil pH (7.2โ€“8.7) is more alkaline than Snap Peas prefers (6.0โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Hidalgo County warms quickly in spring but drains fast. Snap Peas will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Snap Peas.

Organic Matter

Organic matter is low (0.8%). Add 2-3 inches of compost before planting Snap Peas.

How to Plant Snap Peas

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

Succession Planting Snap Peas

4
successive plantings in your 189-day season

Sow every 6.3 weeks. Last sowing by Aug 19 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.2″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,343 gal / 100 sq ft
Drought risk

Water stress score is 10/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 0.9" 0" โ„๏ธ Dormant
Feb โ€” 0.6" 0" โ„๏ธ Dormant
Mar โ€” 0.7" 0" โ„๏ธ Dormant
Apr 3" 0.3" 2.7" ๐Ÿšฟ Regular watering
May 3" 0.3" 2.7" ๐Ÿšฟ Regular watering
Jun 3" 0.4" 2.6" ๐Ÿšฟ Regular watering
Jul 3" 1.7" 1.3" ๐Ÿ’ง Light watering
Aug 3" 2.1" 0.9" ๐Ÿ’ง Light watering
Sep 3" 1.4" 1.6" ๐Ÿšฟ Regular watering
Oct 3" 1.1" 1.9" ๐Ÿšฟ Regular watering
Nov โ€” 0.7" 0" โ„๏ธ Dormant
Dec โ€” 0.8" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Hidalgo County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 3,874 GDD Excellent fit

Snap Peas Planting Timeline โ€” Hidalgo County, NM

Snap Peas Planting Calendar

Activity When Date Range
Start Indoors March 4 Mar 4 โ€“ Mar 18
Transplant Outdoors May 6 May 6 โ€“ May 20
Direct Sow April 29 Apr 29 โ€“ May 20
Harvest July 1 Jul 1 โ€“ Aug 26

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.7"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

55โ€“70 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

189 days in Hidalgo County

Growing Tips for Snap Peas in Hidalgo County

Direct sow Snap Peas outdoors after April 22 in Hidalgo County when soil has warmed and frost danger has passed.

Sandy soil in Hidalgo County dries quickly โ€” mulch Snap Peas with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in Hidalgo County reach 94ยฐF โ€” 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 Hidalgo County, NM?

Hidalgo County is in Zone 7b with an average last frost of April 22. Plan your Snap Peas planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hidalgo County, NM?

Hidalgo County, New Mexico is in USDA Hardiness Zone 7b. The average last spring frost is April 22 and first fall frost is October 28.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hidalgo County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Hidalgo County, NM. Local conditions may vary. Last updated: April 2026.