Chillies
If you are planning to save seeds and want the same variety next year, it’s best to grow just one variety of chilli pepper:
Chives
Chive flowers produce masses of tiny seeds which dry quickly on the plant:
Lettuce
Seeds can be collected from lettuces that have deliberately been left to go over:
Peas
Dried pea pods which have been missed and not picked are great to harvest for seeds:
Runner beans
As runner beans are likely to cross-pollinate with other plants up to 800m away, it’s important to isolate them and pollinate by hand:
Tomatoes
Tomatoes can cross-pollinate but are most likely to grow true to type:
Storing the seeds