I found a Wild Grow Fruit tree

I haven't found any wild trees though I did check all these lots being mentioned. I found Jasmine and started growing my own tree but it hasn't given any fruit yet. I tried taking a cutting and adding it to another tree, but that tree doesn't show it (even though it took the cutting) and after shrinking then regrowing my growfruit tree still hasn't produced any fruit. I'm wondering if I'm doing something wrong?