3,144. How to Divide an Orchard

Hilchos Matnos Aniyim 3:19

When it comes to peah, only a tall fence that separates the trees’ branches can divide an orchard. If there’s a fence between trees below this, but the branches mingle above and touch the top of the fence, then the orchard counts as one and one peah is left for the whole thing.

Hilchos Matnos Aniyim 3:20

If two people jointly buy a tree, they leave one peah from it. If one bought the north side of the tree and the other the south, then each leaves his own peah.