Posted additional photo below.

The plant is about 4 ft tall now and woody with leaves arranged three to a node/branch, the largest on top and the two others opposite. As you can see this leaf is about 8" long. At first I was afraid it was poison ivy, but now this plant is growing straight up like a tree. It is to young to have grown any flowers/berries yet. I live in Southwest Florida and it is growing very fast near my Dwarf Cavendish Banana plant. This area gets a lot of morning sun right now. I suspect whatever this is will need more sun eventually as it is severely leaning that way as it grows. The closest thing we could come to by searching is it is some sort of Mulberry. I would like to know what it is and how to dig it up (if it is anything good) and transplant it as I can't have a tree growing three feet from my house.



Update: Could this be a rainier cherry tree? or some sort of berry tree? I threw some old rainier cherries out a couple of months ago and the squirrels could of buried one.

More pictures would definitely help.

jmpminfla!
Yes a pic of the whole plant/area could be very helpful...

The leaf could be Hydrangea, but your description doesn't fit well with that.

Ok second photo of the full plant, took me a couple days to get out there since it's been raining when I get home. It's the plant next to the banana leaf in the middle of the photo.

Aha, your plant has compound leaves of several leaflets. Not one I recognize.