I have a number of vetivers in my collection, and I grow it, so I was pleased to see Aura Cacia (they sell essential oils and blends) has a mini-documentary on the growing and harvesting of vetiver on the island of Madagascar. Madagascar vetiver has a soft and warm, nutty profile, with some lovely dark chocolate undertones and a whiff of smoke. Really nice. Here's the link to the short video:
Disclosure: I don't work for Aura Cacia and I received nothing from them for mentioning the video, too bad for me!