hi, i'm am trying to identify a tree that my sister has. she says that it is a mandarin orange. i am not sure. can anybody identify, and offer proper growing tips. thank you.
The petiole is wider than mandarins I am familiar with; more like something in the tangello/sour orange/grapefruit range.
I agree with David--the wide wings on the petiole is typical of grapefruit. My Minneola tangelo (which I think is a grapefruit cross) also has wide wing petioles. Skeet