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When to Plant Lima Beans in Ocean County, NJ

Ocean County, New Jersey Zone 7b May

Your May gardening checklist

Your garden in Ocean County, New Jersey is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost April 12
Avg. first frost October 31
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 14.2 hrs
Before June arrives, get these ready
  • First harvests: lima beans

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Lima beans are a warm-season legume producing large, creamy beans with a buttery texture. Both bush and pole varieties are available, with pole types yielding more.

Ocean County, New Jersey is in USDA Zone 7b. The average last spring frost is April 12 and the first fall frost is October 31, giving you a growing season of approximately 202 days.

At an elevation of 82 feet, Ocean County receives approximately 44 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Lima Beans during the growing season.

Ocean County, NJ (Zone 7b) Long season
202 days
Last Spring Frost April 12
202 growing days
First Fall Frost October 31

Ocean County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (95 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 4 – Jul 16
Recommended (50%) ✓ Fits season (97 days to spare)
Transplant: Apr 12 🍅 Harvest: Jun 14 – Jul 26
Safe Start (90%) ✓ Fits season (108 days to spare)
Transplant: May 1 🍅 Harvest: Jul 3 – Aug 14

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 Ocean County

How your county's soil matches Lima Beans's growing requirements.

Soil pH

Your soil pH (5.0–6.6) is more acidic than Lima Beans prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.5%). Annual compost additions will help Lima Beans.

How to Plant Lima Beans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Lima Beans

3
successive plantings in your 202-day season

Sow every 6.9 weeks. Last sowing by Aug 02 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Lima Beans

Lima Beans needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Lima Beans Needs Rainfall You Supplement Action
Jan 3" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 3.9" 0" ❄️ Dormant
Apr 3.9" 3.9" 0" ✅ Rainfall sufficient
May 3.9" 3.9" 0" ✅ Rainfall sufficient
Jun 3.9" 3.9" 0" ✅ Rainfall sufficient
Jul 3.9" 4.8" 0" ✅ Rainfall sufficient
Aug 3.9" 3.6" 0.3" 💧 Light watering
Sep 3.9" 4" 0" ✅ Rainfall sufficient
Oct 3.9" 3.4" 0.5" 💧 Light watering
Nov 3.7" 0" ❄️ Dormant
Dec 2.8" 0" ❄️ Dormant

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

Lima Beans 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.

Lima Beans needs ~1,256 GDD — county provides 3,383 GDD Excellent fit

Lima Beans Planting Timeline — Ocean County, NJ

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow April 19 Apr 19 – May 10
Harvest June 21 Jun 21 – Aug 2

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May Direct Sow
June Harvest
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7b

📆 Growing Season

202 days in Ocean County

Growing Tips for Lima Beans in Ocean County

Direct sow Lima Beans outdoors after April 12 in Ocean County when soil has warmed and frost danger has passed.

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

General growing tips

Direct sow after soil is thoroughly warm at 65F or above. Do not soak seeds before planting as they may crack. Harvest when pods are plump but still green for fresh limas.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lima Beans in Ocean County, NJ?

Ocean County is in Zone 7b with an average last frost of April 12. Plan your Lima Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ocean County, NJ?

Ocean County, New Jersey is in USDA Hardiness Zone 7b. The average last spring frost is April 12 and first fall frost is October 31.

🌱

Your Ocean County Garden Planner — Free

A 24-page printable planner built for Ocean 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 Ocean 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.