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RE: Edible finds - Citrus fruits
This had to be upvoted and resteemed! Very good article! Any recommendations for zone 7b in USA , middle Georgia that might survive and maybe produce outdoors in the ground?
Most citrus are zone 9 or 10, but if you want to experiment I would say try growing a hardier citrus (kumquat, key lime, that sort of thing) against a south-facing wall. That will allow it to store up heat during the daytime and keep it warm at night. There have been some successes in growing citrus in coastal, southern areas of Georgia but your zone may be worth a try!
Happy growing!