Heirloom

Kentucky Wonder Pole

Phaseolus vulgaris 'Kentucky Wonder'

America's most beloved heirloom pole bean, cherished by gardeners since the 1850s for its incredible productivity and old-fashioned bean flavor. These vigorous climbing vines produce an abundance of long, curved pods that are best harvested young and tender, though they can also be left to mature for excellent shell beans. A true garden workhorse that keeps producing until frost.

Harvest

65-70d

Days to harvest

📅

Sun

Full sun

☀️

Zones

2–11

USDA hardiness

🗺️

Difficulty

Easy to Moderate

🌱

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct Sow

Harvest

Direct Sow

Harvest

Showing dates for Kentucky Wonder Pole in USDA Zone 7

All Zone 7 bean →

Zone Map

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Kentucky Wonder Pole · Zones 2–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy to Moderate

Spacing4-6 inches

SoilWell-drained fertile soil, enriched with compost

pH6.0-7.0

Water1 inch per week, deep watering preferred

SeasonWarm season

FlavorRich, traditional bean flavor with meaty texture

ColorMedium to dark green with purple streaking

Size7-10 inches long

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 3	—	—	June – July	September – October
Zone 4	—	—	June – July	September – October
Zone 5	—	—	May – June	August – October
Zone 6	—	—	May – June	August – September
Zone 7	—	—	April – June	July – September
Zone 8	—	—	April – May	July – August
Zone 9	—	—	March – April	June – July
Zone 10	—	—	February – April	May – July

Complete Growing Guide

Light: Full sun (6 or more hours of direct sunlight a day). Soil: High Organic Matter. Drainage: Good Drainage. Spacing: 6-feet-12 feet. Growth rate: Rapid. Maintenance: 'Rattlesnake'Pole Snap Bean, 'Rattlesnake'. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.

Harvesting

The boat-shaped seed pods are bilaterally symmetrical and can be green, yellow, white, or purple at maturity. There is a wide variety of color and shape choices among cultivars.

Color: Gold/Yellow, Green, Purple/Lavender, White. Type: Legume. Length: > 3 inches. Width: < 1 inch.

Garden value: Edible, Good Dried

Harvest time: Fall, Summer

Bloom time: Spring, Summer

Storage & Preservation

Fresh Kentucky Wonder beans maintain peak quality for 3-4 days when stored unwashed in perforated plastic bags in your refrigerator's crisper drawer. They prefer temperatures around 40°F with high humidity – wrapping them in slightly damp paper towels helps prevent moisture loss.

For longer storage, blanch whole pods in boiling water for 3 minutes, plunge into ice water, drain thoroughly, and freeze in airtight containers for up to 8 months. These beans also excel when pressure-canned using tested recipes, maintaining their meaty texture better than many modern varieties.

To preserve as shell beans, harvest mature pods and shell immediately, then freeze the beans on trays before packaging. For traditional dried beans, allow pods to cure completely on the vine, shell the beans, and store in airtight containers after ensuring they're thoroughly dry. Properly dried Kentucky Wonder beans can last 2-3 years and develop an even richer, nuttier flavor over time.

History & Origin

Origin: Tropical America

Advantages

+Fast-growing

Considerations

-Toxic (Seeds): Medium severity

Companion Plants

Plant Together

Corn

Provides natural support structure for beans to climb, classic Three Sisters companion

Squash

Large leaves provide ground cover and moisture retention, completes Three Sisters planting

Marigolds

Repel bean beetles, nematodes, and other harmful insects

Nasturtiums

Act as trap crop for aphids and cucumber beetles, repel squash bugs

Carrots

Benefit from nitrogen fixed by beans, don't compete for space

Radishes

Break up soil for bean roots, mature quickly before beans need full space

Summer Savory

Repels bean beetles and aphids, may improve bean flavor

Lettuce

Grows well in partial shade of bean plants, benefits from nitrogen fixation

Keep Apart

Onions

Can inhibit bean growth and nitrogen fixation by beneficial bacteria

Garlic

Allelopathic compounds can stunt bean growth and reduce yields

Sunflowers

Compete for nutrients and space, can shade beans excessively

Nutrition Facts

Protein

1.97g(4%)

Fiber

3.01g(11%)

Carbs

7.41g(3%)

Fat

0.275g(0%)

Vitamin K

43.9mcg(37%)

Iron

0.652mg(4%)

Calcium

40mg(3%)

Potassium

290mg(6%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #2346400)

Pests & Disease Resistance

Resistance

Moderate disease resistance, good heat tolerance

Common Pests

Bean beetles, spider mites, aphids

Diseases

Rust, bacterial blight, anthracnose

Frequently Asked Questions

How long do Kentucky Wonder pole beans take to grow?▼

Kentucky Wonder beans typically take 65-70 days from planting to first harvest of fresh pods. The vines begin flowering around 45-50 days and start producing pods about 2 weeks later. For shell beans, allow 85-90 days, and for fully mature dried beans, expect 100-110 days. Once production begins, you'll harvest continuously for 10-12 weeks until frost kills the vines.

Can you grow Kentucky Wonder beans in containers?▼

Yes, but you'll need large containers – at least 20 gallons per plant. Use containers that are 18+ inches wide and deep with excellent drainage. Install an 8-foot trellis or pole system before planting. Container plants need more frequent watering and feeding than garden-grown beans. Choose a location with 6-8 hours of direct sunlight and protection from strong winds that could topple the tall support structure.

Are Kentucky Wonder beans good for beginners?▼

Kentucky Wonder beans are excellent for beginners due to their forgiving nature and reliable production. They're easy to grow from seed, have good pest tolerance, and clearly show when they need water or nutrients. The main challenges are providing adequate support structures and keeping up with frequent harvesting. Start with 2-3 plants to learn their growth habits before expanding your planting.

What's the difference between Kentucky Wonder and Blue Lake beans?▼

Kentucky Wonder is an heirloom variety with superior flavor, heat tolerance, and triple-purpose use (fresh, shell, or dried), but requires tall pole support. Blue Lake beans come in both bush and pole varieties, have better disease resistance and more uniform pods, but less complex flavor. Kentucky Wonder produces continuously until frost, while Blue Lake bush types have concentrated harvests.

When should I plant Kentucky Wonder beans?▼

Plant Kentucky Wonder beans 2-3 weeks after your last frost date when soil temperature reaches 65°F consistently. This is typically late May to early June in zones 4-6, mid-May in zones 7-8, and April in zones 9-10. In short-season areas, you can start seeds indoors 2-3 weeks early, but direct sowing is preferred. Don't rush planting – cold soil will cause seeds to rot.

How much space do Kentucky Wonder beans need?▼

Space Kentucky Wonder bean poles or support structures 3-4 feet apart in all directions. Each support can accommodate 3-4 plants planted in a 6-inch circle around the base. The mature vines will create a dense canopy 6-8 feet tall and 3 feet wide per support structure. Allow walking space between supports for harvesting and maintenance access throughout the growing season.