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When to Plant Scarlet Runner Beans in Jones County, MS

Jones County, Mississippi Zone 8b May

May in the garden — Jones County, Mississippi

Your Jones County, Mississippi garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 8
Avg. first frost November 15
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. It's harvest week for scarlet runner beans

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

June prep starts now
  • First harvests: scarlet runner beans

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Scarlet runner beans are ornamental and edible climbing beans with vivid red flowers that attract hummingbirds. Both the young pods and mature beans are edible.

Jones County, Mississippi is in USDA Zone 8b. The average last spring frost is March 8 and the first fall frost is November 15, giving you a growing season of approximately 252 days.

At an elevation of 392 feet, Jones County receives approximately 58.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Scarlet Runner Beans may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Scarlet Runner Beans, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Scarlet Runner Beans root diseases.

Jones County, MS (Zone 8b) Long season
252 days
Last Spring Frost March 8
252 growing days
First Fall Frost November 15

Jones County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (138 days to spare)
Start indoors: Jan 13 Transplant: Mar 17 🍅 Harvest: May 19 – Jun 23
Recommended (50%) ✓ Fits season (140 days to spare)
Start indoors: Jan 18 Transplant: Mar 22 🍅 Harvest: May 24 – Jun 28
Safe Start (90%) ✓ Fits season (132 days to spare)
Start indoors: Feb 11 Transplant: Apr 15 🍅 Harvest: Jun 17 – Jul 22

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 Jones County

How your county's soil matches Scarlet Runner Beans's growing requirements.

Soil pH

Your soil pH (5.4–6.2) is more acidic than Scarlet Runner Beans prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Scarlet Runner Beans.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Scarlet Runner Beans.

How to Plant Scarlet Runner Beans

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

Succession Planting Scarlet Runner Beans

5
successive plantings in your 252-day season

Sow every 6.9 weeks. Last sowing by Aug 27 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Scarlet Runner Beans

Scarlet Runner 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 Scarlet Runner Beans Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 4.3" 6.3" 0" ✅ Rainfall sufficient
Apr 4.3" 4.9" 0" ✅ Rainfall sufficient
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4.8" 0" ✅ Rainfall sufficient
Jul 4.3" 6.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.4" 0" ✅ Rainfall sufficient
Oct 4.3" 4.1" 0.2" 💧 Light watering
Nov 4.3" 4.8" 0" ✅ Rainfall sufficient
Dec 4.6" 0" ❄️ Dormant

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

Scarlet Runner 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.

Scarlet Runner Beans needs ~1,540 GDD — county provides 5,544 GDD Excellent fit

Scarlet Runner Beans Planting Timeline — Jones County, MS

Scarlet Runner Beans Planting Calendar

Activity When Date Range
Start Indoors January 18 Jan 18 – Feb 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 15 Mar 15 – Apr 5
Harvest May 24 May 24 – Jun 28

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

252 days in Jones County

Growing Tips for Scarlet Runner Beans in Jones County

Direct sow Scarlet Runner Beans outdoors after March 08 in Jones County when soil has warmed and frost danger has passed.

With Jones County's clay soil (30% clay), work in 3-4 inches of compost before planting Scarlet Runner Beans. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96°F in Jones County, provide afternoon shade for Scarlet Runner Beans and water deeply in the morning.

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

General growing tips

Provide tall trellising for vigorous vines. Direct sow after frost. Harvest pods young for snap beans or let mature for shelling beans. Tubers are perennial in mild climates.

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 Scarlet Runner Beans in Jones County, MS?

Jones County is in Zone 8b with an average last frost of March 8. Plan your Scarlet Runner Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jones County, MS?

Jones County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 8 and first fall frost is November 15.

🌱

Your Jones County Garden Planner — Free

A 24-page printable planner built for Jones County (Zone 8b). 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 Jones 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.