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How to Grow Urd Beans UK | Full-Season Growing Guide

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Urd Bean (Vigna mungo)

A handful of shiny black urd bean seeds. Photo: Bhaskaranaidu, CC BY-SA 3.0, via Wikimedia Commons.

Also known as: Black Gram · 2 sources cited

The short answer

Ready in
60–140 days
Site
soil pH 6–7

In the UK, urd beans are ready to harvest 60–140 days after planting.

Urd beans (Vigna mungo) — Frost-tender annual, intolerant of frost and of prolonged cloudiness.

Quick Facts

Pale split black gram dal, the husked and split seed — “Black gram dal Phaseolus mungo JEG3361” by PJeganathan is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Black gram dal Phaseolus mungo JEG3361” by PJeganathan is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.
Factor Value
Soil pH 6 - 7
Optimal growing temp 25-35C
Time to harvest 60-140 days
Soil texture Prefers heavier well-drained soils such as black-cotton soils
Drainage Well-drained
Lifecycle Frost-tender annual, intolerant of frost and of prolonged cloudiness.

Soil & Growing Conditions

A wide urd bean field under an open sky — “உளுந்து விளைச்சல் காலம் ” by Vkraja is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“உளுந்து விளைச்சல் காலம் ” by Vkraja is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

Water: Moderate; 600-1000 mm annual rainfall, quite drought resistant

Soil pH range

6 7

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

Harvest & Storage

Hairy young urd bean pods held above the leaves — “Larval Host Plant (Vigna mungo) of Euchrysops cnejus (Fabricius, 1798) – Gram Blue” by Butterflyrajib is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“Larval Host Plant (Vigna mungo) of Euchrysops cnejus (Fabricius, 1798) – Gram Blue” by Butterflyrajib is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

When to pick: Flowering starts 30-60 days after sowing; pods are picked as they blacken, over several harvests.

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

How long do urd beans take to grow?

Typically 60–140 days, depending on cultivar and growing conditions.

What soil pH do urd beans need?

A pH of about 6–7. 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.

Plan next season before the problems start

Most of the advice on this page comes down to timing and spacing — sowing at the right moment, rotating beds, and giving plants enough airflow. The UK Garden Planner lays your plot out month by month so those decisions are already made before the season starts.

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