Yeah, like Fred said, ornamental would be your best chance. Poncirus trifoliata. It has fragrant flowers and ornamental fruit, but they are too oily and seedy to really eat out of hand and enjoy. May make a good jam or a drink? I’ve tried most of the “hardy” ones and killed them all in zone 7. Citrus cannot take durational freezes at all. They will straight up die to the ground. Should you protect with heat and moisture resistant cages, then anything is possible. I advise to getting some good tasting citrus in pots and enjoy them that way.
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