Blog

When to Plant Scarlet Runner Beans in Washington County, OH

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.

Washington County, Ohio is in USDA Zone 6b. The average last spring frost is April 28 and the first fall frost is October 19, giving you a growing season of approximately 174 days.

At an elevation of 803 feet, Washington County receives approximately 30.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Scarlet Runner Beans during the growing season.

Washington County, OH (Zone 6b) Moderate season
174 days
Last Spring Frost April 28
174 growing days
First Fall Frost October 19

Washington County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Scarlet Runner Beans Planting Timeline — Washington County, OH

Scarlet Runner Beans Planting Calendar

Activity When Date Range
Start Indoors March 3 Mar 3 – Mar 17
Transplant Outdoors May 12 May 12 – May 26
Direct Sow May 5 May 5 – May 26
Harvest July 14 Jul 14 – Aug 18

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

174 days in Washington County

Growing Tips for Washington 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Scarlet Runner Beans in Washington County, OH?

Washington County is in Zone 6b with an average last frost of April 28. Plan your Scarlet Runner Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Washington County, OH?

Washington County, Ohio is in USDA Hardiness Zone 6b. The average last spring frost is April 28 and first fall frost is October 19.

🌱

Your Washington County Garden Planner — Free

A 22-page printable planner built for Washington County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Washington County, OH. Local conditions may vary. Last updated: June 2026.

Sources & credits

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