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How to Grow African Locust Beans UK | 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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