A peach (Prunus persica) was a sweet-tasting fruit, grown on a tree known by the same name, that originated on Earth. Starfleet field rations included freeze-dried peaches. (DS9: "Sons and Daughters")
Prior to their departure from Earth during the Xindi incident, in 2153, Tucker picked up a crate of Georgia peaches to bring aboard Enterprise, after which Chef kept them in stasis – where they, according to Tucker, "stayed as fresh as the day they were picked."
Tucker later gave T'Pol a bowl of peaches in exchange of her giving him neuro-pressure treatments. At first T'Pol avoided tasting them, stating she didn't usually eat that late, but would finally take a bite of one at Tucker's request. After T'Pol became infected with a mutagenic virus, Tucker was able to retrieve the peach she had bitten out of to help Phlox acquire a sample of her DNA. (ENT: "Extinction")