its useful to know that it isnt just the seed that we are looking at in terms of revenue
That's the point I'm making though okyah, they EITHER produce oil from seeds OR make yellow die, firewood, medicine etc. If you are sitting in a cold room and decide to burn the chair you then have to sit on the floor. On a small scale people will take bits of plants at various times of the year but we are talking large scale production of oil which cannot be compromised by stripping parts of the plants. You cannot make elderberry wine if you picked all the flowers in the Spring to make elderflower cordial you dig?
I'm not going to invest without a clear example of profits possible either.