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Common Bean imported image

Crop details

Common Bean

Phaseolus vulgaris
Family: Fabaceae

Quick stats

Family Fabaceae
Typical harvest 1.4 t/ha
Varieties 1
Pests & diseases 2
Seasons 1

Crop profile

Growth habit annual
Days to harvest 95
Main uses Dry grain pulse and green pod vegetable for household and market use.
Pollination insect
Origin / where it grows Major pulse crop in East African highland and mid-altitude mixed farms.

Weather, soil & spacing

Best temperature 15–23 °C
Rainfall 500–1500 mm/yr
Altitude 0–3000 m
Best pH 5.8–7.2
Soil type Wide range; best in well-drained soils
Row spacing 40 cm
Plant spacing 20 cm
Planting depth 1.5 cm
Seed rate 4 kg/ha
Nursery days

Simple notes for farmers

About the crop: This crop is annual. You plant, grow and harvest it in one main season, then plant again. You can normally start harvesting about 95 days after planting, depending on care and variety.

Main use: Farmers mostly grow this crop for dry grain pulse and green pod vegetable for household and market use..

Pollination: This crop is mainly pollinated by insect. Keeping flowers healthy and having insects like bees in the field helps improve fruit set and yields.

Where it grows: Major pulse crop in East African highland and mid-altitude mixed farms. It is grouped under: Legumes & Pulses.

Best climate: This crop does well in warm areas where the temperature is usually between 15 and 23 degrees Celsius. It prefers places that receive around 500 to 1500 millimetres of rain in a year. It can grow from near sea level up to about 3000 metres above sea level.

Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 5.8 to 7.2. Choose a fertile, well-drained soil. Avoid places where water stands for long periods.

Plant spacing: Plant in rows about 40 centimetres apart, and leave about 20 centimetres between plants in the row. This gives each plant enough space for roots and canopy to spread.

Planting depth: Dig planting holes or furrows about 1.5 centimetres deep so the roots sit firmly in the soil but are not buried too deep.

Seed or planting material: Use around 4 kilograms of seed or planting material per hectare. Spread or plant evenly so the field has a good stand without being overcrowded.

Farmer guide (mwongozo wa mkulima)

Planting: Establish Common Bean in a fine weed-free seedbed and keep emergence moisture steady.
Transplanting: Direct seed or transplant depending on production system.
Irrigation: Maintain even soil moisture for steady Common Bean growth and quality.
Fertigation: Use split nitrogen and potassium for market-quality Common Bean.
Pest scouting: Scout Common Bean weekly for chewing pests, sap suckers, and foliar diseases.
Pruning: No pruning required unless sanitation or staking is needed.
Harvest: Harvest Common Bean at market maturity for the intended use.
Postharvest: Cool and shade Common Bean promptly after harvest.

Nutrient schedule (mbolea kwa hatua)

# Stage DAP Product Rate Targets (kg/ha) Notes
1 Basal 0 NPK 17-17-17 200 kg/ha N: 34, P₂O₅: 34, K₂O: 34 Basal fertilizer for Common Bean.
2 Topdress 21 CAN 100 kg/ha N: 26, P₂O₅: —, K₂O: — Support active Common Bean vegetative growth.

Nutrient requirements

Nutrient Stage Amount Unit
N Basal 35 kg/ha
P₂O₅ Basal 30 kg/ha
K₂O Basal 35 kg/ha
N Topdress 25 kg/ha
K₂O Topdress 20 kg/ha

Field images (picha shambani)

Common Bean imported image
Common Bean imported image
Primary
Common Bean imported image
Common Bean imported image
Common Bean imported image
Common Bean imported image
Name Country Maturity Traits
Rosecoco KE 95 Popular market class with good acceptance.
Stage Product Rate (kg/ha) Notes
Planting Well-rotted manure 5000 Improve soil structure before Common Bean planting.
Vegetative growth CAN 100 Split topdress for Common Bean production.
Name Type Symptoms Management
Aphids pest Leaf curling and sticky honeydew. Scout frequently and use selective control when pressure builds.
Leaf spot complex disease Necrotic spotting and reduced leaf quality. Improve airflow, rotate crops, and avoid prolonged leaf wetness.
System Typical Min Max Notes
rainfed smallholder 1 0.5 1.5
Managed fresh-market production 1.8 1.3 2.7 Typical marketable Common Bean yield under irrigated or well-managed conditions.
Country Region Planting Harvest
KE Highland Vegetable Zones Mar-Apr or Oct-Nov Year-round depending on irrigation
Country Region Suitability
KE Highland Vegetable Zones High