Red Gram (Pigeon Pea, Toor Dal)
Cajanus cajan
📖 About this plant
Red Gram (Cajanus cajan), known as toor dal or arhar dal in Hindi, thuvarum paruppu in Tamil, kandi in Telugu, and pigeon pea in English, is a perennial (often grown as annual) shrub in the Fabaceae (legume) family — one of the most important pulse crops in India and a staple food for over 1 billion people in the tropics. Native to the Indian subcontinent (where it has been cultivated for over 3,500 years), pigeon pea is now grown across the tropical and subtropical world — especially India (the worlds largest producer, with about 80% of global supply), Africa, the Caribbean, and parts of Southeast Asia. In India, pigeon pea is grown in Maharashtra (the largest producer — especially the Vidarbha and Marathwada regions), Karnataka, Andhra Pradesh, Telangana, Uttar Pradesh, Madhya Pradesh, and Gujarat. The plant is a tall (1-4 m) woody shrub with trifoliate compound leaves, small yellow flowers with red/maroon streaks (the characteristic pea-family flower shape), and long (5-10 cm) flattened pods containing 4-5 small beige/brown seeds with a characteristic white hilum (the “eye” — hence the related “Congo pea” or “Congo bean” names). The seeds are the part eaten — split and hulled (the familiar yellow “toor dal” or “arhar dal” of Indian cuisine) or whole (with skin) as “sabut toor.” Toor dal is one of the most important dals in Indian cuisine — the everyday dal of north India (the famous “dal tadka” or “dal fry” of dhaba and restaurant fame), the sambar of south India (sambars are made with toor dal as the base), and the varan of Maharashtra (a simple dal eaten daily with rice and ghee). The fresh green seeds are also eaten as a vegetable (green pigeon pea — “tuvar lilva” in Gujarat, “toor bhaji” in Maharashtra). Pigeon pea is exceptionally nutritious — rich in plant protein (about 20-22%), dietary fiber, complex carbohydrates, iron, potassium, magnesium, B vitamins (especially folate), and antioxidants. The plant is also one of the most valuable rotation and intercrop legumes in the world — it fixes 100-200 kg/ha of nitrogen (enriching soil for the next crop), its deep taproot (1-2 m) breaks up hardpan and brings up nutrients, and its leaves drop and add organic matter. In Ayurvedic medicine, toor dal is considered light, warming, and easy to digest — recommended for kapha dosha and as a balanced everyday dal for all doshas.
🧑🌾 Care requirements
Full sun
Drought-tolerant; minimal watering
Low to moderate (40-60%)
20-35°C
Well-draining loam; pH 5.0-7.5 (tolerates poor soil)
Inoculate with rhizobium; low-N, phosphorus/potassium
🌐 Common Names
📋 Plant facts
- 🌍 Origin
- Indian subcontinent
- 📏 Max height
- 1-4 m
- 📐 Spread
- 60-120 cm
- 🕰️ Bloom time
- Winter; small yellow-red pea-like flowers
- 🎨 Bloom color
- Yellow with red/maroon streaks
- 🍃 Foliage color
- Trifoliate compound green leaves (slightly hairy)
- ⏳ Lifespan
- Perennial (3-5 years); grown as annual in most regions
- 📈 Growth rate
- Fast — harvest in 130-180 days
- ☠️ Toxicity
- Non-toxic; safe for humans and pets
- 🌱 Propagation
- Seeds (direct sow)
🛡️ Health & Safety
Non-toxic; safe for humans and pets
Common issues
- Sterility mosaic disease (most serious — viral-like, transmitted by mites)
- fusarium wilt
- alternaria blight
- phytophthora blight
- Cercospora leaf spot
- powdery mildew
- pod borer (Helicoverpa — most serious insect pest)
- pod fly
- bruchid beetles (storage pest)
- nematodes
💡 Care tips
- Direct sow seeds 3-5 cm deep, 30-45 cm apart, in rows 60-90 cm apart, after soil has warmed to 25°C.
- In India, sow with the monsoon (June-July for kharif crop — the main crop), or in early spring (February-March for a summer crop in irrigated areas).
- Inoculate seeds with rhizobium bacteria before planting to boost nitrogen fixation.
- Plant in full sun in well-draining, even poor loam.
- Pigeon pea thrives in poor soils where other pulses fail and tolerates a wide pH range (5.0-7.5).
- Water sparingly — pigeon pea is exceptionally drought-tolerant (its deep taproot accesses water from 1-2 m deep) and suffers from overwatering.
- Water during germination and flowering if rainfall is inadequate
- otherwise rely on monsoon.
- Stop watering when pods turn brown and dry.
- Do NOT apply nitrogen — pigeon pea fixes its own.
- Apply phosphorus and potassium at planting if soil is poor.
- The plant grows rapidly — 1-2 m in 60-90 days.
- Flowers 80-100 days after sowing, pods mature 130-180 days after sowing.
- Pigeon pea has an indeterminate growth habit (pods mature over several weeks) — harvest when 70-80% of pods are dry (brown) and seeds rattle inside.
- Pull entire plants (or cut individual branches as pods mature) and dry in the sun for 5-7 days, then thresh to release seeds.
- Winnow to remove chaff.
- Dry grain to 12% moisture before storage.
- Store in airtight containers — add dried neem leaves to prevent bruchid beetle infestation.
- Save seeds for next year — they remain viable for 1-2 years.
- Pigeon pea is a great intercrop with cereals (sorghum, pearl millet, maize) — it provides nitrogen to the cereal and uses vertical space efficiently.
- Popular Indian varieties include ICPL-88039, BSMR-736, Asha (ICPL-87119), Maruti (ICP-8863), LRG-41, and the early-maturing UPAS-120.
- For home gardeners, pigeon pea is one of the most rewarding pulses to grow — fast, drought-tolerant, perennial (provides multiple harvests from one planting in frost-free climates), and beautiful with its yellow-red flowers and woody shrub form.
- The plant is also a great living trellis — it can support climbing plants like beans, yam, or pepper.
