|When I purchased my home I was told that one of the trees is a key lime. It is about 20|
|I can't tell from your description exactly what the fruit might be. It sounds like a kiwi fruit (has black seeds in a starburst pattern when you cut the fruit in half) but kiwi doesn't have thorns, and it's a vine rather than a tree. Key lime fruit has the same rind and texture of a citrus fruit so I'm guessing you are growing some other subtropical fruit tree. I'd take a sample of the mature fruits into the cooperative extension office for identification. contact University of Georgia Brantley County Cooperative Extension, 10303 North Main St. , Nahunta , GA 31553 , phone 912-462-5724.