There’s a new book out on “chia,” Salvia hispanica, a “forgotten crop of the Aztecs.” I haven’t seen it, but it seems pretty comprehensive. There’s a review here. Chia is interesting among other reasons because although a good source of omega-3 fatty acid it doesn’t give off a “fishy” flavour.
Can salba be grown in anywhere in Africa?
If you mean Salvia, then yes, it can.