Green Bean
Phaseolus vulgaris
Green beans are the young pods of the common bean, picked while still slender before the seeds mature. They come in bush and pole forms and are among the most reliable and rewarding crops for home gardens.
- Light
- Full sun
- Water
- Regular, even moisture
- Difficulty
- Easy
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Overview
Green beans (Phaseolus vulgaris) are the immature pods of the common bean, a legume in the Fabaceae family. The same species, left to mature, produces dry beans such as kidney, pinto, and navy beans.
They grow in two habits: compact bush beans that bear a concentrated crop, and tall pole beans that climb and produce over a longer season.
As legumes, beans fix nitrogen from the air via root bacteria, enriching the soil. The plant is a warm-season annual.
How to identify it
Green bean is a leafy legume bearing slender pods, in bush or climbing form.
- Leaves: Compound with three broad, pointed leaflets, medium green
- Habit: Low bush (1 to 2 feet) or twining pole vine (6 to 10 feet) needing support
- Flowers: Small, white, pink, or purple, pea-like
- Pods: Long, slender, green (sometimes yellow or purple), picked before the seeds swell
- Roots: Bear nitrogen-fixing nodules
Care & growing
Green beans are easy, fast, and improve the soil.
- Light: Full sun, 6 to 8 hours
- Water: Regular, even moisture, especially during flowering and pod set
- Soil: Well-draining, moderately fertile soil; pH 6.0 to 7.0. Avoid excess nitrogen since beans make their own.
- Temperature: Warm-season; needs soil above 60 F and is frost-sensitive
- Feeding: Light feeding; too much nitrogen yields leaves over pods
- Propagation: Direct sow seed after frost. Provide a trellis for pole types. Pick often to keep plants producing.
Habitat & origin
The common bean was domesticated in the Americas, with separate centers in Mesoamerica and the Andes thousands of years ago, and spread globally after European contact.
Green beans are now grown in warm-season gardens and farms across the world. They are a popular beginner crop because they germinate readily and produce quickly and abundantly.
Frequently asked questions
Should I grow bush or pole beans?
Bush beans are compact and give a concentrated harvest. Pole beans climb, save ground space, and crop steadily over a longer period if you keep picking.
Why are my beans flowering but not setting pods?
Very high temperatures, drought, or poor pollination can cause flowers to drop. Water consistently and the plant usually resumes podding once heat eases.
Do beans need fertilizer?
Very little nitrogen, because beans fix their own through root bacteria. Too much nitrogen produces lush foliage at the expense of pods.
Green Bean guides
In-depth guides for identifying, growing, and caring for Green Bean.
