Plant guide
Pigeon Pea.
Cajanus cajan
Pronounced kuh-JAY-nus KAY-jan
Also known as Cajan, Catjan, Catjan Pea, Congo Pea, Congo-pea, Dhal Bean, Gungo Pea, No-Eye Pea
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The pigeon pea is a hardy perennial legume that is widely grown for its edible seeds. It is a fantastic choice for warm climates because it is quite drought tolerant. You will love how it adds a touch of tropical flair to your garden.

At a glance
- Care level
- Easy
- Plant type
- Perennial shrub
- Light
- Full sun
- Indoor light
- Direct sun
- Water
- Every 7 to 14 days
- Mature size
- 3 to 12 feet
- Growth rate
- Fast
- Hardiness
- USDA 9 to 12
- Bloom time
- Late summer to autumn
Care
Plant this shrub in a spot that gets plenty of sun and has well draining soil. Keep an eye out for yellowing leaves, which might mean the soil is staying too wet. It is a tough plant that handles heat well.
- Watering
- Water deeply once the top few inches of soil feel dry to the touch.
- Feeding
- Apply a balanced fertilizer sparingly since this plant fixes its own nitrogen.
- Pruning
- Trim back the branches after harvest to keep the plant bushy and productive.
- Repotting
- Repot only if you are growing it in a container, otherwise it prefers being in the ground.
- Soil
- Well draining sandy or loamy soil
- Soil pH
- 5.0 to 7.0
- Temperature
- 15 to 35°C
- Humidity
- 40 to 70%
- Drought tolerance
- High
- Lifespan
- Short-lived perennial, typically 3 to 5 years.
- Fragrance
- Light
- Deer and rabbits
- Moderate
Signs it needs repotting
- Roots growing out of the drainage holes.
- Stunted growth despite regular feeding.
- Soil drying out very rapidly.
Safety
- People
- The raw seeds contain compounds that can cause digestive distress if eaten in large quantities.
- Children
- The pods and seeds are not inherently dangerous, but they should be kept away from small children to prevent choking.
- Contact allergens
- The fine hairs on the pods may cause mild skin irritation in sensitive individuals.
- Airborne allergens
- Pollen from the flowers can trigger seasonal allergies in some people.
- Edibility
- Pigeon peas must be cooked thoroughly before consumption to neutralize anti-nutritional factors.
How to identify it
- Trifoliate leaves with silvery undersides
- Yellow flowers with red streaks
- Flat pods containing rounded seeds
- Woody stems on mature plants
- Height
- 1 to 3m
- Spread
- 0.5 to 1.5m
- Leaves
- green, grey-green, semi-evergreen
- Flowers
- yellow, red, 1 to 2cm
- Fruit
- green, brown, purple, Autumn to winter
Problems to watch for
- Fusarium WiltCommon
- Pod BorerCommon
- AphidsUncommon
- Leaf SpotUncommon
- Powdery MildewUncommon
- Root RotUncommon
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Growing it
- Propagation
- seed
- When to plant
- spring, early summer
- Overwintering
- In cooler climates, treat as an annual or bring pots indoors before the first frost. Protect from freezing temperatures to maintain the shrub structure.
- In containers
- It grows well in containers at least 40 centimeters deep.
Seed
- Soak seeds in water for 12 hours to improve germination.
- Plant seeds 2 centimeters deep in well-draining soil.
- Keep the soil moist until seedlings emerge in 1 to 2 weeks.
Plant pigeon peas alongside heavy feeders to naturally boost soil fertility.
Grows well with
Similar species
- Cowpea · Another legume that serves similar roles as a cover crop.
Science
- Family
- Fabaceae
- Genus
- Cajanus
- Order
- Fabales
- Class
- Magnoliopsida
- Native range
- Likely India or Africa, now pantropical.
- Conservation
- This species is widely cultivated and not of conservation concern.
It thrives in poor soils by forming a symbiotic relationship with nitrogen-fixing bacteria.
- Value to wildlife
- nectar source, nitrogen fixing
- Pollinators
- bees, butterflies
- Uses
- culinary legume, cover crop, green manure, ornamental shrub
Through the year
Ecological indicators
- Salinity
- 2/9
- Soil reaction
- 6/9
- Light
- 8/9
- Temperature
- 8/9
- Moisture
- 4/9
- Nutrients
- 3/9
Taxonomy resolved against GBIF.
Questions people ask
- Can I grow pigeon peas in a pot?
- Yes, they grow well in large containers if provided with full sun and good drainage.
- How do I know when to harvest?
- Harvest the pods when they are full and plump but still green for fresh use.
Where the name comes from
The name Cajanus comes from the Malay word 'katjang' for bean, while the common name pigeon pea refers to its historical use as feed for pigeons.
Good to know
- Pigeon peas are one of the most important pulse crops in the tropics.
- The plant is highly drought tolerant once established.
- It is a perennial shrub that is often grown as an annual.
- The leaves are sometimes used as fodder for livestock.
Also in
Keep your pigeon pea growing
This page is a general guide. Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked.
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This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.
