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Kentucky Wonder Brown Pole Bean

Kentucky Wonder Brown · Fabaceae

Reliable heirloom pole bean that climbs strongly and produces long green stringless pods with brown seeds. One of the classic snap beans for fresh eating, canning, and freezing. Key facts: 65–72 days to maturity, 6+ hours of sun, 4–6 " spacing. Not recommended for containers. Requires trellis for best results.

Updated April 19, 2026 · Backed by 4 cited sources
Overview

At a Glance

The essentials first: timing, light, spacing, seed-starting, container fit, and overall size.

Days to maturity
65–72 days
Sun
6+ hours
Full Sun, 8+ Hours
Spacing
4–6 "
between plants
Seed start
0–1 weeks
before transplant
Container
Not recommended
Needs 10+ gal if attempted
Height
6–8 ft
at maturity
Planting window

Zone Planting Guide

Switch zones to see whether this plant is a strong fit, what frost timing looks like, and any extra notes worth planning around.

This card updates instantly with viability, frost timing, and any planting notes for your selected zone.

Care

Growing Guide

Everything in one place: seed starting, transplant timing, watering, soil, and structural support.

Seed starting
Germination
Time6–10 days
Optimal temperature80°F
Seed depth1"
Moving outdoors
Transplanting
Minimum soil temp65°F
Harden off3 days
Moisture
Watering
Weekly1–2 "
NeedsConsistent
Drip or soaker hose
Root zone
Soil
pH range6–7
PreferredWell Drained Loam With Moderate Fertility
Structure
Support
TypeTrellis — Needs a sturdy trellis, fence, or teepee for heavy pod loads over a long season.
Bean, Pole - Kentucky Wonder, Brown seeds

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When you shop through this link, SoilStack earns a small commission at no extra cost to you. It's how we keep the site free and the calendar ad-free. Every product on this page was hand-selected based on university extension research.

Bean, Pole - Kentucky Wonder, Brown seeds

Pole. 75-85 days. The Kentucky Wonder Brown-Seeded Pole Bean is a reliable and heavy yielder.

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Resilience

Plant Health

Stress tolerance, resistance notes, and the most common problems to watch for as plants mature.

Tolerance
Heat: Moderate Cold: Low Drought: Moderate

Common Issues

Poor Pod Set

Cause: High heat during flowering, especially above the upper 80s, can reduce pollination and pod set.

Prevention: Plant after soil warms but early enough to flower before extreme heat; keep soil evenly moist.

Bean Beetle Feeding

Cause: Mexican bean beetles and other leaf feeders skeletonize foliage and scar pods.

Prevention: Scout regularly, hand-pick when practical, and use row cover early if pressure is high.

Bacterial Blight

Cause: Warm wet foliage and splashing water spread bacterial spots.

Prevention: Rotate crops, avoid working wet plants, and water at soil level.

Flower Drop

Cause: Hot dry weather can reduce pod set on runner beans more than on standard bush beans.

Prevention: Water deeply, mulch, and keep vines growing steadily.

Feeding & picking

Nutrition & Harvest

How hungry the plant is, what ripe harvest looks like, and how long the crop keeps after picking.

Feeding
Nutrition
Feeding intensityLight feeder
RecipesRoot Drench, Worm Castings Topdress
Timing
Harvest

Pick pods at 6-8 inches while smooth, bright green, and nearly stringless for snap use; allow pods to mature further for shelling or dry beans.

Expected yield1–2.25 lbs/plant
Storage6 days — Refrigerate unwashed in a breathable bag and use promptly for best texture.
Plant relationships

Companion Planting

Helpful neighbors can support growth or deter pests. Keep antagonistic plants separated to reduce stress and competition.

What you'll need

Growing Supplies

Based on Kentucky Wonder Brown-Seeded Bean's growth profile -- recommendations matched to this variety's specific requirements.

Drip irrigation / soaker hose kit

Every gardener benefits from putting water at the root zone instead of on the leaves, because drip and soaker systems reduce foliar disease pressure by limiting leaf wetness and soil splash. A quality kit should include a backflow preventer, filter, pressure reducer, and UV-resistant tubing.

Source: Iowa State University Extension; Colorado State University Extension; UMass Extension

Soil test kit

A soil test gives a baseline for pH and nutrient status so gardeners can add only what the soil actually needs. Prioritize a mail-in or lab-affiliated kit whenever possible because extension guidance notes that laboratory testing is more accurate than instant readers.

Source: University of Maryland Extension; Purdue Extension; Montana State University Extension

Quality bypass pruners

Extension guidance favors bypass designs because they make cleaner, closer cuts on living tissue than anvil types. Look for hardened steel blades that can be sharpened, a comfortable grip, and a cutting capacity matched to real home-garden stems.

Source: University of New Hampshire Extension; Iowa State University Extension; Purdue University Extension

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Research

Sources

Reference material and extension guidance used to build this growing guide.

seed_catalog SeedsNow.comreference Ferry-Morseuniversity UMN Extensioninference Yield and stress-response notes were conservatively inferred from comparable Kentucky Wonder pole bean culture
Internal links

Kentucky Wonder Brown Pole Bean Planting Dates by Zone

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