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When to Plant Scarlet Runner Beans in Trigg County, KY

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.

Trigg County, Kentucky is in USDA Zone 6b. The average last spring frost is April 5 and the first fall frost is October 30, giving you a growing season of approximately 208 days.

At an elevation of 1,825 feet, Trigg County receives approximately 48.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Scarlet Runner Beans during the growing season.

Trigg County, KY (Zone 6b) Long season
208 days
Last Spring Frost April 5
208 growing days
First Fall Frost October 30

Trigg County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (98 days to spare)
Start indoors: Feb 2 Transplant: Apr 13 🍅 Harvest: Jun 15 – Jul 20
Recommended (50%) ✓ Fits season (96 days to spare)
Start indoors: Feb 8 Transplant: Apr 19 🍅 Harvest: Jun 21 – Jul 26
Safe Start (90%) ✓ Fits season (97 days to spare)
Start indoors: Feb 21 Transplant: May 2 🍅 Harvest: Jul 4 – Aug 8

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 23 gal / 100 sq ft
Scarlet Runner Beans needs ~1,120 GDD — county provides 3,328 GDD Excellent fit

Scarlet Runner Beans Planting Timeline โ€” Trigg County, KY

Scarlet Runner Beans Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 โ€“ Feb 22
Transplant Outdoors April 19 Apr 19 โ€“ May 3
Direct Sow April 12 Apr 12 โ€“ May 3
Harvest June 21 Jun 21 โ€“ Jul 26

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“80 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6b

Growing Season

208 days

Growing Tips for Trigg County

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

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Frequently Asked Questions

When should I plant Scarlet Runner Beans in Trigg County, KY?

Trigg County is in Zone 6b with an average last frost of April 5. Plan your Scarlet Runner Beans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Trigg County, KY?

Trigg County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 5 and first fall frost is October 30.

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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 Trigg County, KY. Local conditions may vary. Last updated: April 2026.