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How to Grow African Locust Beans | Complete Growing Guide

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African Locust Bean (Parkia biglobosa)

A bowl heaped with fermented African locust bean seeds. Photo: Imoini22, CC BY-SA 4.0, via Wikimedia Commons.

2 sources cited

African locust beans (Parkia biglobosa) — Long-lived savanna tree.

Quick Facts

A crimson African locust bean flower head against the sky — “Atakora-Parkia biglobosa (5)” by Ji-Elle is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
Atakora-Parkia biglobosa (5)” by Ji-Elle is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Factor Value
Soil pH 4.5 - 5.5
Soil texture Deep, well-drained fertile soils; also shallow lateritic soils, stony slopes and rocky hills
Drainage Well-drained
Lifecycle Long-lived savanna tree; first flowering at five to seven years.

Soil & Growing Conditions

African locust bean trees standing in open savanna farmland — “Atakora-Parkia biglobosa” by Ji-Elle is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
Atakora-Parkia biglobosa” by Ji-Elle is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

Water: Low; 500-800 mm in the Sahel, tolerating far higher, with a 5-7 month dry season

Soil pH range

4.5 5.5

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

Harvest & Storage

An African locust bean tree carrying long pods — “Atakora-Parkia biglobosa (2)” by Ji-Elle is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
Atakora-Parkia biglobosa (2)” by Ji-Elle is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

When to pick: A savanna tree that starts flowering at 5-7 years while still comparatively small. Pods are 12-35 cm with 5-23 seeds; the seed is fermented into the condiment known as dawadawa, iru or soumbala.

References

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.

Frequently Asked Questions

What soil pH do african locust beans need?

A pH of about 4.5–5.5. That span reflects genuine variation between the authorities we cite rather than a single agreed figure — the References section lists each source's exact range.

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SoilCommander Editorial Team

Science-based growing guides · Thresholds that hold in any climate

This guide states the conditions the plant itself responds to — soil temperature, frost tolerance, day length — rather than dates, because the same calendar month means opposite seasons in the northern and southern hemispheres. Anything genuinely restricted to one part of the world is named as such rather than presented as universal. Written and maintained by our editorial team against international horticultural research and extension sources.

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