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When to Plant Lima Beans in Juniata County, PA

Juniata County, Pennsylvania Zone 7a May

This month in Juniata County, Pennsylvania

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

Avg. last frost April 24
Avg. first frost October 22
Soil temp (4") 62°F
Watering Moderate
Pest pressure Low
Daylight 14.3 hrs
  1. Outdoor sowing time: lima beans

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

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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.

Juniata County, Pennsylvania is in USDA Zone 7a. The average last spring frost is April 24 and the first fall frost is October 22, giving you a growing season of approximately 181 days.

At an elevation of 659 feet, Juniata County receives approximately 44.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Lima Beans during the growing season.

Juniata County, PA (Zone 7a) Moderate season
181 days
Last Spring Frost April 24
181 growing days
First Fall Frost October 22

Juniata County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (79 days to spare)
Transplant: Apr 17 🍅 Harvest: Jun 19 – Jul 31
Recommended (50%) ✓ Fits season (76 days to spare)
Transplant: Apr 24 🍅 Harvest: Jun 26 – Aug 7
Safe Start (90%) ✓ Fits season (68 days to spare)
Transplant: May 13 🍅 Harvest: Jul 15 – Aug 26

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 Juniata County

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

Soil pH

Your soil pH (5.0–6.3) is more acidic than Lima Beans prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.0%). 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 181-day season

Sow every 6.9 weeks. Last sowing by Jul 24 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.0″/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 3.1" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 4.1" 0" ❄️ Dormant
Apr 3.9" 3.2" 0.7" 💧 Light watering
May 3.9" 3.6" 0.3" 💧 Light watering
Jun 3.9" 4.4" 0" ✅ Rainfall sufficient
Jul 3.9" 4.7" 0" ✅ Rainfall sufficient
Aug 3.9" 4.2" 0" ✅ Rainfall sufficient
Sep 3.9" 4.2" 0" ✅ Rainfall sufficient
Oct 3.9" 3.8" 0.1" 💧 Light watering
Nov 3.4" 0" ❄️ Dormant
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Juniata 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 ~1,088 GDD — county provides 2,624 GDD Excellent fit

Lima Beans Planting Timeline — Juniata County, PA

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow May 1 May 1 – May 22
Harvest July 3 Jul 3 – Aug 14

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Direct Sow
June
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 7a

📆 Growing Season

181 days in Juniata County

Growing Tips for Lima Beans in Juniata County

Direct sow Lima Beans outdoors after April 24 in Juniata 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 Juniata County, PA?

Juniata County is in Zone 7a with an average last frost of April 24. Plan your Lima Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Juniata County, PA?

Juniata County, Pennsylvania is in USDA Hardiness Zone 7a. The average last spring frost is April 24 and first fall frost is October 22.

🌱

Your Juniata County Garden Planner — Free

A 24-page printable planner built for Juniata County (Zone 7a). 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 Juniata County, PA. 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.