[If] someone plants one row within his own property, and there is one row within his neighbor’s property, and there is a private road or a public road in the middle, or a wall which is lower than ten handbreadths, then these [rows] combine. [If the wall is] higher than ten handbreadths, [the rows] do not combine. R’ Yehudah says: If he intertwined them above, then they combine.