Blog

When to Plant Pole Beans in Johnston County, OK

Pole beans are climbing varieties of green beans that produce over a much longer season than bush types. They require trellising but yield more per square foot.

Johnston County, Oklahoma is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 11, giving you a growing season of approximately 231 days.

At an elevation of 700 feet, Johnston County receives approximately 32.9 inches of rainfall annually with predominantly loam soil. Summer highs average 92Β°F, providing good warmth for Pole Beans during the growing season.

Johnston County, OK (Zone 7b) Long season
231 days
Last Spring Frost March 25
231 growing days
First Fall Frost November 11

Johnston County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.3

Drainage

Well Drained

Monthly Watering Guide for Pole Beans

Pole 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 Pole Beans Needs Rainfall You Supplement Action
Jan β€” 0.8" 0" ❄️ Dormant
Feb β€” 1" 0" ❄️ Dormant
Mar 4.3" 2.3" 2" πŸ’§ Light watering
Apr 4.3" 3.4" 0.9" πŸ’§ Light watering
May 4.3" 5.1" 0" βœ… Rainfall sufficient
Jun 4.3" 5.2" 0" βœ… Rainfall sufficient
Jul 4.3" 3.8" 0.5" πŸ’§ Light watering
Aug 4.3" 3.7" 0.6" πŸ’§ Light watering
Sep 4.3" 3.7" 0.6" πŸ’§ Light watering
Oct 4.3" 2.1" 2.2" 🚿 Regular watering
Nov 4.3" 1" 3.3" 🚿 Regular watering
Dec β€” 0.8" 0" ❄️ Dormant

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

Pole Beans Planting Timeline β€” Johnston County, OK

Pole Beans Planting Calendar

Activity When Date Range
Start Indoors February 4 Feb 4 – Feb 18
Transplant Outdoors April 8 Apr 8 – Apr 22
Direct Sow April 1 Apr 1 – Apr 22
Harvest June 3 Jun 3 – Jul 29

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

55–70 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7b

πŸ“† Growing Season

231 days in Johnston County

Growing Tips for Johnston County

Provide sturdy 6-8 foot poles, tepees, or trellises. Direct sow after last frost. Pick regularly to encourage continued production. Beans fix nitrogen benefiting following crops.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pole Beans in Johnston County, OK?

Johnston County is in Zone 7b with an average last frost of March 25. Plan your Pole Beans planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Johnston County, OK?

Johnston County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is March 25 and first fall frost is November 11.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Johnston County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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