How to Grow Pigeon Peas USA | Planting & Establishment

Soil & Growing Conditions

Water: Drought-resistant once established via its deep taproot; needs full sun and no waterlogging for successful pod development; little response to fertiliser and tolerates low soil phosphorus (USDA NRCS)

Soil pH range

4.5 8.4

Span reflects genuine variation between the cited authorities, not a single agreed figure.

Growth Stages

Stage	BBCH	Notes
Sowing and establishment	0	Sow seed 1.5in deep in rows 1-3ft apart at 8-10lb/acre (USDA NRCS); UF/IFAS Extension gives the same 8-10lb/acre rate in slightly wider 3-4ft rows, thinned to 12-18in between plants. Needs a soil temperature of at least 64F (18C) at planting or establishment slows; seedlings emerge within about 3 weeks but grow slowly, so weeds must be closely managed for the first 6 weeks (USDA NRCS).
Vegetative growth	3	Deep, fast-growing taproot develops and forms nitrogen-fixing nodules with naturally occurring Rhizobium already present in most soils that have grown legumes recently, so inoculant is not usually necessary. Grow in full sun with no waterlogging; fertilisation is not usually needed since the plant tolerates low soil phosphorus (USDA NRCS).
Flowering	6	A short-day plant needing about 12.5 hours of daylight to begin flowering; takes 65-80 days from sowing to flower. Bi-laterally symmetrical, bell-shaped, yellow or yellow-and-red flowers form in the angle between stem and leaf (USDA NRCS).
Fruiting and harvest	8	A further 50-75 days after flowering for seed to mature. Pods are pointed and mottled red, and do not shatter in the field so they can withstand weather damage. Harvest after first frost, once leaf drop makes the pods easier to reach; in Florida this falls in October-November (USDA NRCS; UF/IFAS Extension).

Quick Facts

Factor	Value
Soil pH	4.5 - 8.4
Sunlight	6-8 hours direct sun
Germination temp	18C
Optimal growing temp	18-30C
Minimum survivable temp	5C
Time to harvest	115-155 days
Soil texture	Wide range of soil types (USDA NRCS)
Drainage	Well-drained; will not survive waterlogged conditions (USDA NRCS)
Lifecycle	Erect annual or short-lived perennial, usually grown as an annual; under good management can persist up to five years, though the stem grows woodier and seed production declines with age (UF/IFAS Extension; USDA NRCS Plant Guide).
Edible parts	seeds, pods

At a Glance

Harvest & Storage

When to pick: Pods are two-valved, pointed and mottled red, 2-3.5in (5-9cm) long, containing 2-9 round or oval seeds that may be light beige to dark brown; pods do not shatter in the field and can withstand weather damage. Harvest after first frost, once leaf drop eases access to the pods; methods are similar to soybean and can be mechanised with a combine (USDA NRCS). In Florida, harvest falls October-November (UF/IFAS Extension). Sowing-to-seed-maturity of 115-155 days is derived by summing USDA NRCS's separate flowering (65-80 days) and post-flowering seed-maturation (50-75 further days) figures.

Storage

Dry seed stores well as a pulse crop; unprocessed raw seed should not be eaten by humans or livestock since it contains tannins and trypsin inhibitors -- cooking removes the trypsin inhibitors (USDA NRCS).

Diseases

Fusarium wilt (pigeon pea)

moderate

Fusarium sp.

USDA NRCS states C. cajan "can develop Fusarium wilt, a common fungal disease" -- named only at genus level in the source, with no further detail on severity or regional prevalence given, so the pathogen is recorded…

Pests

Southern green stink bug

low

Nezara viridula

Named among the "other pests" listed by USDA NRCS alongside cutworms, thrips and mirids (no severity grading given in the source).

Cutworms

low

Noctuidae

Named among the "other pests" listed by USDA NRCS (Noctuidae, no severity grading given).

Thrips

low

Thysanoptera

Named among the "other pests" listed by USDA NRCS (Thysanoptera, no severity grading given).

Capsid bugs

low

Miridae

Named as "mirids (Miridae)" among the "other pests" listed by USDA NRCS (no severity grading given).

Heliothis spp. (pod borer moths)

high

Heliothis spp.

Named directly by USDA NRCS as attracting Heliothis spp., which "can significantly decrease yields"; the source separately notes C. cajan has been used as a trap crop for Heliothis spp. in affected cotton.

Pigeon Pea Photo Gallery

Pigeon pea bush in flower

A pigeon pea bush with its characteristic yellow and red bicolor flowers.

Pigeon pea flower

Close-up of a yellow and red pigeon pea flower.

Trifoliate leaf detail

Pigeon pea's slender, pointed trifoliate leaves.

Young plant in a field

A young pigeon pea plant growing in a field.

Mature shrub row

A row of mature pigeon pea shrubs.

Flower cluster

A cluster of pigeon pea flowers and buds among the leaves.

Flower buds opening

Pigeon pea flower buds opening on the plant.

Foliage detail

Pigeon pea foliage showing the trifoliate leaf pattern.

Plant in a garden bed

A pigeon pea plant growing in a garden bed.

References

1. University of Florida IFAS Extension - Pea, Pigeon -- Cajanus cajan (L.) Millsp. (HS641)

   Erect annual/short-lived perennial 3-10ft; deeply rooted, wide adaptability on semiarid land; trifoliate leaves, yellow/yellow-red flowers; pods green and pointed with reddish mottling. Seed sown 8-10lb/acre, rows 3-4ft apart, thinned to 12-18in. Some types killed by frost, others hardy. Florida: plant May, harvest Oct-Nov. Uses: human food (fresh shell beans and dry beans), fodder, browse, green manure, grain cash crop.

2. USDA Natural Resources Conservation Service (NRCS), Cape May Plant Materials Center - Plant Guide: Pigeonpea (Cajanus cajan)

   Detailed description, adaptation (soil pH 4.5-8.4, well-drained, 65-86F optimal, tolerates >95F, hardy to 41F, frost defoliates), establishment (1.5in deep, 1-3ft rows, 8-10lb/acre, needs 64F+ soil temp), management (annual or perennial to 5yr, harvest after first frost, resistant to root lesion nematodes), pests (Heliothis spp., cutworms, thrips, mirids, green stink bugs, pod borers, storage bean weevils), disease (Fusarium wilt), flowering biology (short-day, 12.5hr, 65-80 days to flower + 50-75 days to seed maturity), uses and toxicity note (raw seed contains tannins/trypsin inhibitors, removed by cooking).

2 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.