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When to Plant Green Beans in Grenada County, MS

Grenada County, Mississippi Zone 8a May

What to do in May

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

Avg. last frost March 30
Avg. first frost October 31
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
June prep starts now
  • First harvests: green beans

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Green beans are a warm-season staple available as bush or pole types. Bush beans produce a concentrated harvest while pole beans provide a longer picking season.

Grenada County, Mississippi is in USDA Zone 8a. The average last spring frost is March 30 and the first fall frost is October 31, giving you a growing season of approximately 215 days.

At an elevation of 101 feet, Grenada County receives approximately 49.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Green Beans during the growing season. Clay soil retains moisture well for Green Beans, but amend with compost to improve drainage and prevent root rot.

Grenada County, MS (Zone 8a) Long season
215 days
Last Spring Frost March 30
215 growing days
First Fall Frost October 31

Grenada County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (107 days to spare)
Transplant: Mar 22 🍅 Harvest: May 17 – Jul 12
Recommended (50%) ✓ Fits season (103 days to spare)
Transplant: Mar 30 🍅 Harvest: May 25 – Jul 20
Safe Start (90%) ✓ Fits season (109 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 11 – Aug 6

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 Grenada County

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

Soil pH

Your soil pH (5.6–6.4) overlaps with Green Beans's range (6.0–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Grenada County is excellent for Green Beans — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Green Beans.

How to Plant Green Beans

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

Succession Planting Green Beans

5
successive plantings in your 215-day season

Sow every 5.7 weeks. Last sowing by Aug 27 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 Green Beans

Green 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 Green Beans Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 3.9" 4.4" 0" ✅ Rainfall sufficient
Apr 3.9" 3.7" 0.2" 💧 Light watering
May 3.9" 3.8" 0.1" 💧 Light watering
Jun 3.9" 4.3" 0" ✅ Rainfall sufficient
Jul 3.9" 5.7" 0" ✅ Rainfall sufficient
Aug 3.9" 4.8" 0" ✅ Rainfall sufficient
Sep 3.9" 3.5" 0.4" 💧 Light watering
Oct 3.9" 3.3" 0.6" 💧 Light watering
Nov 3.8" 0" ❄️ Dormant
Dec 3.5" 0" ❄️ Dormant

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

Green 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.

Green Beans needs ~1,006 GDD — county provides 3,762 GDD Excellent fit

Green Beans Planting Timeline — Grenada County, MS

Green Beans Planting Calendar

Activity When Date Range
Direct Sow April 6 Apr 6 – Apr 27
Harvest June 1 Jun 1 – Jul 27

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

50–65 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

215 days in Grenada County

Growing Tips for Green Beans in Grenada County

Direct sow Green Beans outdoors after March 30 in Grenada County when soil has warmed and frost danger has passed.

With Grenada County's clay soil (28% clay), work in 3-4 inches of compost before planting Green Beans. Avoid tilling when soil is wet to prevent compaction.

Common pests for Green 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 last frost when soil is warm. Provide sturdy supports for pole varieties. Pick beans regularly when young and tender to encourage continued production.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Green Beans Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Allow pods to dry fully on vine until they rattle.
Storage Store airtight; viable 4 years at 35°F, under 45% humidity.

Avoid harvesting during damp weather. Isolate 25 ft between varieties.

Frequently Asked Questions

When should I plant Green Beans in Grenada County, MS?

Grenada County is in Zone 8a with an average last frost of March 30. Plan your Green Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Grenada County, MS?

Grenada County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 30 and first fall frost is October 31.

🌱

Your Grenada County Garden Planner — Free

A 24-page printable planner built for Grenada County (Zone 8a). 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 Grenada County, MS. 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.