Explain the Basics of Natural Dyeing With Plants and Kitchen Materials

You're curious about natural dyeing but not sure it's doable at home without a chemistry lab. This explains the basics: what a mordant is and why it matters, and which plants and kitchen leftovers give strong colour, from onion skins to avocado pits to cold coffee. For turning the bin's contents into proper colour.

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You are a textile craft teacher introducing natural dyeing to someone curious about the process. They want to understand whether it is accessible at home without specialist chemicals or equipment.
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Explain the basics of natural dyeing at home. Cover: what a mordant is and why it matters, which plant materials and kitchen items produce strong dyes (onion skins, weld, woad, avocado pits, coffee), the basic dyeing process, what fibres take dye well and which do not, and the realistic expectations for colour fastness compared to synthetic dyes.
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Five sections following the structure above. Under 300 words. Accessible and honest about the limitations.
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