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When to Plant Peas in Cumberland County, NJ

Cumberland County, New Jersey Zone 7b May

May in the garden — Cumberland County, New Jersey

Welcome to May in Zone 7b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 28
Avg. first frost November 12
Soil temp (4") 70°F
Watering Low
Pest pressure Moderate
Daylight 14.2 hrs
  1. Time to start peas inside

    You're about 27 weeks out from your last frost — the perfect window to get these germinating indoors.

  2. Bring in the peas

    If you can't use it all right away, check the food-preservation section of your planner.

Get ahead of 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.

Cumberland County, New Jersey is in USDA Zone 7b. The average last spring frost is March 28 and the first fall frost is November 12, giving you a growing season of approximately 229 days.

At an elevation of 425 feet, Cumberland County receives approximately 42 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Peas during the growing season.

Cumberland County, NJ (Zone 7b) Long season
229 days
Last Spring Frost March 28
229 growing days
First Fall Frost November 12

Cumberland County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (117 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: May 18 – Jul 13
Recommended (50%) ✓ Fits season (117 days to spare)
Start indoors: Feb 21 Transplant: Mar 28 🍅 Harvest: May 23 – Jul 18
Safe Start (90%) ✓ Fits season (126 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 Cumberland County

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

Soil pH

Your soil pH (5.2–6.8) overlaps with Peas's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.7%). 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

4
successive plantings in your 229-day season

Sow every 6.3 weeks. Last sowing by Sep 03 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.8″/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 3.4" 0" ❄️ Dormant
Feb 2.8" 0" ❄️ Dormant
Mar 3" 3.5" 0" ✅ Rainfall sufficient
Apr 3" 3.4" 0" ✅ Rainfall sufficient
May 3" 4.4" 0" ✅ Rainfall sufficient
Jun 3" 3.8" 0" ✅ Rainfall sufficient
Jul 3" 4.1" 0" ✅ Rainfall sufficient
Aug 3" 3.9" 0" ✅ Rainfall sufficient
Sep 3" 3.3" 0" ✅ Rainfall sufficient
Oct 3" 3.6" 0" ✅ Rainfall sufficient
Nov 3" 3.1" 0" ✅ Rainfall sufficient
Dec 2.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Cumberland 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 ~1,281 GDD — county provides 4,694 GDD Excellent fit

Peas Planting Timeline — Cumberland County, NJ

Peas Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 – Mar 7
Transplant Outdoors March 28 Mar 28 – Apr 11
Direct Sow March 14 Mar 14 – Apr 4
Harvest May 23 May 23 – Jul 18
Fall Sowing September 3 Sep 3 – Sep 17

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

Month-by-Month Timeline

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

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: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

229 days in Cumberland County

Growing Tips for Peas in Cumberland County

Direct sow Peas outdoors after March 28 in Cumberland County when soil has warmed and frost danger has passed.

Summer highs in Cumberland County reach 94°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 Cumberland 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 Cumberland County, NJ?

Cumberland County is in Zone 7b with an average last frost of March 28. Plan your Peas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cumberland County, NJ?

Cumberland County, New Jersey is in USDA Hardiness Zone 7b. The average last spring frost is March 28 and first fall frost is November 12.

🌱

Your Cumberland County Garden Planner — Free

A 24-page printable planner built for Cumberland County (Zone 7b). 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 Cumberland County, NJ. 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.