I was given a gift of seedballs in June. These are little balls of clay embedded with seeds, which you scatter on top of soil or compost. I was keen to try them out. I had three varieties - herb, tea and salad. All three were successful and it was interesting to see what was going to grow out of the little balls of clay. The salad leaves were varied, the herbs were primarily dill, with a scattering of parsley and basil. The tea was mostly chamomile - as seen in this image. I now need to work out how to make tea from the plant but I believe it's the flowers that you use, not the leaves.
Chamomile is a wonderful herb. The flowers are edible. You can use them to decorate salads or soups. Chamomile infusion is very good. Pour boiling water over the flowers themselves and wait 15 minutes.
What a lovely idea. I made some 'seed bombs' with the grandkids one year with seeds from my garden. Poppies, aquilegia, foxgloves etc. I never heard if they were successful or not, but I liked the idea.
I guess you use the yellow part after it has dried