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How to Grow Mung Beans | Full-Season Growing Guide

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How to Grow Mung Beans | Full-Season Growing Guide guide thumbnail

Mung Bean (Vigna radiata)

A whole mung bean plant showing its trifoliolate leaves against a plain background. Photo: Bff, CC BY-SA 4.0, via Wikimedia Commons.

Also known as: Green Gram · 2 sources cited

The short answer

Ready in
50–120 days
Site
soil pH 5.5–7

In the UK, mung beans are ready to harvest 50–120 days after planting.

Mung beans (Vigna radiata) — Frost-tender annual.

Quick Facts

Pale yellow mung bean flowers alongside developing green pods — “Hoa đậu xanh” by Bùi Thụy Đào Nguyên is licensed under CC BY-SA 3.0. Source: Wikimedia Commons
“Hoa đậu xanh” by Bùi Thụy Đào Nguyên is licensed under CC BY-SA 3.0. Source: Wikimedia Commons.
Factor Value
Soil pH 5.5 - 7
Optimal growing temp 28-30C
Time to harvest 50-120 days
Soil texture Well-drained loams or sandy loams
Drainage Well-drained
Lifecycle Frost-tender annual. Completes its cycle in one warm season and is killed by the first frost.

Soil & Growing Conditions

A stand of mung bean plants growing in a garden bed — “JfSanVicente9088SanMiguelfvf 20” by Judgefloro is licensed under CC BY-SA 4.0. Source: Wikimedia Commons
“JfSanVicente9088SanMiguelfvf 20” by Judgefloro is licensed under CC BY-SA 4.0. Source: Wikimedia Commons.

Water: Moderate; 600-1000 mm annual rainfall, tolerates less

Soil pH range

5.5 7

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

Harvest & Storage

Mature mung bean pods held on the plant, ready for harvest — “Mungbohne mit Fruchtstand” by M97995619 is licensed under CC BY-SA 3.0. Source: Wikimedia Commons
“Mungbohne mit Fruchtstand” by M97995619 is licensed under CC BY-SA 3.0. Source: Wikimedia Commons.

When to pick: Pods turn black or brown and dry; harvest before they shatter. Flowering starts 30-70 days after sowing and pods mature 3-4 weeks after flowering.

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 mung beans take to grow?

Typically 50–120 days, depending on cultivar and growing conditions.

What soil pH do mung beans need?

A pH of about 5.5–7. 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

This page gives you the thresholds; the planner turns them into your own calendar. It works from what you can observe and measure in your garden rather than from dates written for somebody else’s latitude.

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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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