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How to Grow Moth Beans Canada | Complete Growing Guide

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Moth Bean (Vigna aconitifolia)

Whole and split moth bean seeds on a white plate. Photo: Lalitstar at English Wikipedia, CC BY-SA 3.0, via Wikimedia Commons.

2 sources cited

The short answer

Ready in
75–90 days
Site
soil pH 6.5–7.5

In the UK, moth beans are ready to harvest 75–90 days after planting.

Moth beans (Vigna aconitifolia) — Frost-tender annual.

Quick Facts

Whole and split moth bean seeds on a white plate — “Matki” by Lalitstar at English Wikipedia is licensed under CC BY-SA 3.0. Source: Wikimedia Commons
“Matki” by Lalitstar at English Wikipedia is licensed under CC BY-SA 3.0. Source: Wikimedia Commons.
Factor Value
Soil pH 6.5 - 7.5
Optimal growing temp 24-32C
Time to harvest 75-90 days
Soil texture Particularly suitable for dry light sandy soils; will not tolerate waterlogging
Drainage Free-draining
Lifecycle Frost-tender annual; the most drought-resistant pulse crop known.

Soil & Growing Conditions

Moth bean plants trailing over stony red soil — “Vigna aconitifolia” by Siddarth Machado is licensed under CC BY 4.0. Source: iNaturalist
“Vigna aconitifolia” by Siddarth Machado is licensed under CC BY 4.0. Source: iNaturalist.

Water: Very low; the most drought-resistant pulse crop, succeeds on 200-300 mm

Soil pH range

6.5 7.5

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

Harvest & Storage

A moth bean flower and slender pod on sandy ground — “Vigna aconitifolia” by Aravinth is licensed under CC BY 4.0. Source: iNaturalist
“Vigna aconitifolia” by Aravinth is licensed under CC BY 4.0. Source: iNaturalist.

When to pick: Pods dry on the trailing stems; the whole plant is often cut once the majority have matured.

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 moth beans take to grow?

Typically 75–90 days, depending on cultivar and growing conditions.

What soil pH do moth beans need?

A pH of about 6.5–7.5. 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.

Plan next season before the problems start

Short-season growing is arithmetic before it is technique: days to maturity against frost-free days decides what will finish at all. The Canada Garden Planner does that subtraction for your region before you sow.

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SoilCommander Editorial Team

Canadian vegetable growing guides · Adapted for Canadian hardiness zones and frost dates

Every SoilCommander guide is written and maintained by our editorial team for real Canadian growing conditions, adapted to Canadian hardiness zones and frost-date data, with provincial agriculture and Canadian university extension guidance cited directly where a crop-specific source exists.

Vegetable Growing Guides Canada

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