I just wanted to get this topic out there because I believe this garcinia has a lot of potential for those who want to zone push. As far as I know, this species has only been sold by Marcus here on the forum and I happened to have the opportunity of buying 6 seeds of the “large fruited” variety. That being said, there is little to no information about this species online with the exception being the information provided by Marcus. He says they are hardy down to -5 C. I can attest to that claim. Without a doubt the most cold hardy garcinia I have come into contact with. Not only that but 3 of the plants are very vigorous, growing even during the winter months here. They have great flood tolerance as well as frost tolerance. The only issue being that I cannot test compatibility as a rootstock nor quality of fruit.
If anyone has information about the Latin name of this species or anything they know about the species I think that would be most invaluable especially for those trying to push the limits with this genus
(Do not tell me they are an achacha; they are clearly not)