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When to Plant Kidney Beans in Nassau County, NY

Nassau County, New York Zone 7b April

April in Nassau County, New York — your action list

Each item below is timed to Nassau County, New York's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 29
Avg. first frost November 12
Soil temp (4") 58°F
Watering Low
Pest pressure Moderate
Daylight 13.1 hrs
  1. Direct-sow kidney beans

    Rake a smooth bed, make a shallow furrow, drop seeds at the spacing on the packet, water gently, walk away.

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Kidney beans are a popular dry bean variety named for their shape, available in red and white types. They are the classic bean for chili and red beans and rice.

Nassau County, New York is in USDA Zone 7b. The average last spring frost is March 29 and the first fall frost is November 12, giving you a growing season of approximately 228 days.

At an elevation of 746 feet, Nassau County receives approximately 44.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Kidney Beans during the growing season.

Nassau County, NY (Zone 7b) Long season
228 days
Last Spring Frost March 29
228 growing days
First Fall Frost November 12

Nassau County Soil Profile

Soil Type

Silt Loam

Soil pH

5.1-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (102 days to spare)
Transplant: Mar 25 🍅 Harvest: Jun 24 – Jul 29
Recommended (50%) ✓ Fits season (102 days to spare)
Transplant: Mar 29 🍅 Harvest: Jun 28 – Aug 2
Safe Start (90%) ✓ Fits season (111 days to spare)
Transplant: Apr 9 🍅 Harvest: Jul 9 – Aug 13

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 Nassau County

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

Soil pH

Your soil pH (5.1–6.7) is more acidic than Kidney Beans prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Kidney Beans.

Organic Matter

Organic matter is excellent (4.0%) — Kidney Beans will thrive.

How to Plant Kidney Beans

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

Plant Water Budget

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

Monthly Watering Guide for Kidney Beans

Kidney Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Kidney Beans Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 4.3" 4.1" 0.2" 💧 Light watering
Apr 4.3" 4.3" 0" ✅ Rainfall sufficient
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 3.7" 0.6" 💧 Light watering
Jul 4.3" 4.3" 0" ✅ Rainfall sufficient
Aug 4.3" 3.6" 0.7" 💧 Light watering
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 3.8" 0.5" 💧 Light watering
Dec 3.8" 0" ❄️ Dormant

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

Kidney 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.

Kidney Beans needs ~1,633 GDD — county provides 3,819 GDD Excellent fit

Kidney Beans Planting Timeline — Nassau County, NY

Kidney Beans Planting Calendar

Activity When Date Range
Direct Sow April 5 Apr 5 – Apr 26
Harvest July 5 Jul 5 – Aug 9

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

85–110 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7b

📆 Growing Season

228 days in Nassau County

Growing Tips for Kidney Beans in Nassau County

Direct sow Kidney Beans outdoors after March 29 in Nassau County when soil has warmed and frost danger has passed.

Common pests for Kidney 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 frost. Allow pods to dry completely on the plant. Kidney beans must be thoroughly cooked as raw or undercooked beans contain harmful lectins.

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 Kidney Beans in Nassau County, NY?

Nassau County is in Zone 7b with an average last frost of March 29. Plan your Kidney Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Nassau County, NY?

Nassau County, New York is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 12.

🌱

Your Nassau County Garden Planner — Free

A 24-page printable planner built for Nassau 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.

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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 Nassau County, NY. Local conditions may vary. Last updated: April 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.