Scarlet runner bean (Phaseolus coccineus)
Care, watering, light and tips for Scarlet runner bean on Floravia.
Quick facts
- Family: Fabaceae
- Difficulty: Easy to care for
- Watering: every 2 days
- Light: Full sun
- Temperature: 5–35 °C
- Toxicity: Toxic to pets
About Scarlet runner bean
Phaseolus coccineus, commonly known as runner bean or scarlet runner bean, is an annual climbing legume prized for both its showy red or bicolored flowers and its edible pods and seeds. It's an ideal plant for vertical gardens, pergolas, or trellises, where its vigorous stems can climb to create a vibrant and productive green screen. Its flowers attract pollinators and add an ornamental touch to the garden.
Native range
Mexico and Central America
Care tips
It requires full sun exposure for optimal flowering and fruiting, at least 6 hours daily. Watering should be regular and ample, especially during flowering and pod development, keeping the substrate consistently moist but not waterlogged. It prefers fertile, well-drained soils rich in organic matter. A common mistake is not providing adequate support for its climbing growth, which can limit its development and production.
How to save a dying Scarlet runner bean
- Warning signs
- Yellowing/spotted leaves, flower/pod drop, stunted growth, weak stems.
- First aid
- Check watering (keep moist, not soggy), light (full sun), and climbing support.
- What kills it
- Prolonged dryness, lack of support, poor/compacted soil, excess nitrogen.
- Can it be saved?
- Yes, if you act quickly. Correct the main issue and prune damaged parts. They are resilient!