פירוש על כלאים 4:6

Introduction This mishnah deals with various formations of vines that either do or do not constitute a vineyard.

One who plants two [vines] opposite two [other vines], and one [other vine] forming a “tail” behold this is a vineyard. The easiest way to understand this mishnah is through a few simple illustrations (as you probably know by now, I don’t know how to make complicated illustrations, so the simple kind will have to suffice). The following set up of vines counts as a vineyard:
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The bottom vine is the “tail” and hence we have here a vineyard. Also the following set up will count as a vineyard, because again, the bottom vine counts as a tail:
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Two [vines] opposite two [other vines], and one [other vine] in between, or two opposite two, and one in the middle, these are not a vineyard until there are two opposite two with one [other] forming a tail. However, the following setups do not constitute vineyards:
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Or this:
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In order for there to be a vineyard, there must be a tail at the end and not a single vine in the middle.