In Australis Sorrel is called curly leaf dock. It is usually regarded as a week but I eat it around once a week. I collected many seeds from one plant but I havent planted any yet.
Thanks I have 2 buckets of green walnuts that seem too mature to pickle so I might let them dry and see if they will germinate. One year many sprouted in my roof gutters when I had a walnut tree close to my house.