Hahaha, have fun with it! But then I laugh because a friend sent me some socatranum seeds, almost to my dismay. One inch tall is a year's growth. Dr. Dimmit's plant was a scrawny three foot stick when it finally had one blossom, at EIGHT years of age! Hahahaha.
That photo might be of a much older plant than 100 years. Too bad they don't have growth rings so their age can be determined. Another haha at the length of my link below! It's photos from the island, with the amazing Dragon Trees, as well as the Adeniums. Off the coast of Africa, near the pointy 'nose' bit of Africa, east.
https://www.google.com/search?...