Posted by shiny on April 21, 2018 at 22:38 and edited at April 24, 2018 at 23:13

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Beans, peas and corn: remove husks and allow seeds to dry out – this may take a couple of weeks, then remove casings and store.

Pumpkins and melons: seeds need to be washed and set aside to dry for a week or so before storage.

Lettuce, celery, parsnip, rocket, carrots, leeks, onions and radicchio: allow plants to set seed (tall stems of flowers will eventually appear), pick once the seed heads are brown and crisp sounding. Hang upside down in plastic bags for a week or so, rustle the remaining seeds out of the stems and store.

Cucumbers, tomatoes, zucchini, chillies and capsicums: scoop out flesh and wash through a sieve. Lay the seeds on a paper towel and place somewhere warm and dry for a week or two before storing. Be careful with chilli seeds as they can sting, so avoid touching your eyes after touching the seeds. Once completely dry, cut the paper towel into small pieces and store seeds on the towel in an envelope.