How to Grow Pole Bean Scarlet Runner
Pole Bean Scarlet Runner
Phaseolus coccineus
vegetableThe Scarlet Runner Bean is a vigorous climbing bean with stunning bright red flowers and ornamental dark pods that are edible when young. This dual-purpose plant serves as both a productive vegetable crop and an attractive ornamental for trellises and garden structures. It produces tender beans that are excellent for cooking and seeds that can be dried for storage.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 6-10, prefers warm growing seasons
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Growth Stages
Germination & Emergence
1-2 weeksSeeds sprout within 7-10 days, cotyledons emerge above soil with developing true leaves
Keep soil warm (60°F+) and consistently moist. Provide strong support structure nearby as vines begin climbing immediately. Thin seedlings if overcrowded.
Vegetative Growth
3-4 weeksVigorous vine growth with heart-shaped leaves developing rapidly, climbing up supports, strong branching occurs
Guide vines onto trellis or support structure. Maintain consistent watering and fertilize every 2-3 weeks with balanced fertilizer. Pinch back excessive growth if needed to encourage bushier development.
Flowering
3-4 weeksShowy bright scarlet-red flowers appear in clusters, highly attractive to pollinators and hummingbirds
Maintain consistent moisture during flowering. Ensure adequate potassium and phosphorus for flower production. Remove any diseased foliage. Allow bees and hummingbirds to pollinate naturally.
Pod Development & Young Bean Harvest
3-4 weeksDark green, flat pods develop quickly after flower pollination, reaching 6-8 inches in length and harvestable for fresh consumption
Pick pods regularly when tender and snap easily to encourage continued production. Water more frequently as pods develop. Apply mulch to retain moisture and regulate soil temperature.
Seed Maturation & Drying
4-6 weeksPods darken and thicken, seeds inside enlarge and harden, pods transition from green to brown-purple if left on vine
For dried beans, allow pods to remain on vine until completely dry and brown. Stop watering to allow natural drying. Harvest when pods are brittle and rattle when shaken.
Common Pests
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Hand-pick adult beetles and egg clusters. Use row covers early in season. Apply neem oil or spinosad if infestation is severe. Encourage natural predators like parasitic wasps.
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Spray foliage with water to dislodge mites. Increase humidity around plants. Apply insecticidal soap or neem oil. Avoid over-fertilizing with nitrogen.
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Spray with strong water stream. Use reflective mulches to confuse insects. Apply insecticidal soap or neem oil. Introduce ladybugs and lacewings.
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Provide adequate air circulation by proper spacing. Remove infected foliage immediately. Avoid overhead watering. Apply sulfur dust if needed. Choose resistant varieties.
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Ensure good air circulation and spacing. Remove infected leaves. Spray with baking soda solution (1 tbsp per gallon water) or sulfur dust. Water at soil level only.
Uses
Fresh Pod Vegetable
CulinaryYoung tender pods are delicious steamed, boiled, or sautéed as a green vegetable, with a flavor similar to green beans but slightly more robust. The young pods contain minimal mature seeds and are best eaten whole. [source]
Dried Bean Protein Source
CulinaryMature dried beans are nutrient-dense and excellent for soups, stews, and bean dishes, offering high protein and fiber content similar to kidney beans. They can be stored for months when properly dried. [source]
Garden Ornament & Trellis Coverage
OrnamentalThe brilliant scarlet-red flowers and vigorous climbing vines make this plant an attractive addition to any garden structure, providing vertical interest and fast coverage for arbors, trellises, and fences. [source]
Pollinator & Hummingbird Plant
WildlifeThe bright red flowers are highly attractive to hummingbirds, bees, and other pollinators, making this an excellent choice for supporting beneficial insects and creating wildlife habitat. [source]
Nitrogen Fixation & Soil Improvement
HouseholdLike all legumes, Scarlet Runner Beans have nitrogen-fixing nodules on their roots that enrich the soil with available nitrogen, improving soil fertility for subsequent plantings without chemical fertilizer. [source]
Harvest Tips
For fresh eating, harvest pods when young and tender, 6-8 inches long, before seeds enlarge (50-60 days after planting). Snap pods off by hand or cut with scissors. Harvest regularly every 2-3 days to encourage continued production. For dried beans, wait until pods turn brown and papery on the vine (100+ days), then shell and dry indoors. Pods are also edible cooked whole when very young; larger mature beans are best shelled and cooked.
Fun Facts
- 🌱 Scarlet Runner Beans are native to Mexico and have been cultivated for over 2,000 years; they were introduced to Europe in the 16th century and became so popular for their ornamental flowers that they were initially grown as decorative plants rather than food crops.
- 🌱 The bright red flowers are specifically adapted to attract hummingbirds, which are their primary pollinators in their native range, making this plant an excellent choice for hummingbird gardens.
- 🌱 In cool climates, Scarlet Runner Beans can be grown as perennials from their tuberous roots; they will die back in winter but regrow from the tubers in spring, making them a long-lived investment in the garden.
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