Most plants are now completing their life cycle, and this is my time for collecting seeds. Some are edible, like poppy, nigella, sunflower and pumpkin. Others, like vegetable and annual flower seeds, I collect to sow next spring. They have to be collected on a dry day as soon as the seeds heads have ripened (they usually change colour to brown or black), but before they open and drop the seeds. I put them in paper bags and hang them up in the kitchen until the seeds drop out, though some pods have to be crushed to encourage this. Afterwards, they are put in small paper envelopes, labelled and stored in an airtight container.