I am going to try to plant Olive tree from seed, I have extracted the inner seeds by carefully crushing the hard shell using a hammer. I will post the results (success or failure). Here are some photos of the seeds. I like their texture:
Good luck liono. I have a feeling you'll manage to get at least some of those seeds to germinate for you.
Thanks Coppice. No they are picked right off the tree that I have in my back garden. I put the seeds in water with small amount of Hydrogen Peroxide. I will post the progress after I plant them.
Update of the seeds. I put them in paper tissue inside a plastic container (on 23 Nov. 2016), after about a month and a half (~ 10 Jan 2017) I found that most of the seeds got mold. However, few survived and sprouted. Here are photos (taken 26 Jan 2017):