Does hemp use less water than cotton?
Hemp generally needs less irrigation than cotton, but the real footprint depends on climate, farming and processing.
In many climates, yes. Hemp is often grown with rainfall alone, while cotton is frequently irrigated. But a single number rarely tells the whole story.
Why comparisons vary
- Climate: cotton grown in a rainy region may need little irrigation.
- Processing: retting, scouring and dyeing use water too, for both fibres.
- Yield: how much usable fibre comes from a field changes the result.
- Lifespan: a garment worn for years spreads its footprint thin.
A fair way to choose
Pick items you will wear often and keep a long time. Look for clear fibre content, low-impact dyes and makers who explain their supply chain. Organic cotton can be a good choice too. The best fabric is the one that stays out of the bin.
Related: how durable hemp fabric is, and the hemp swaps list.