A vineyard that has been [partly] ruined: if it is still possible to harvest ten vines within a bet seah, and they are planted according to halakhah, behold this is called a “poor vineyard.” A vineyard planted in a mixed-up manner, if there remains an alignment of [one line of] two parallel [vines] opposite [a line of] three [vines], it constitutes a vineyard, but if not it is not a vineyard. Rabbi Meir says: since it is in appearance like a vineyard [in general], it is a vineyard.

A vineyard that has been planted with less than four cubits [in between rows of vines]: Rabbi Shimon says: this is not a vineyard. But the sages say: it is a vineyard, and we look at the middle [rows] as if they were not there.

A trench passing through a vineyard, ten [handbreadths] deep and four wide: Rabbi Eliezer ben Jacob says: if it runs right through from the beginning of the vineyard to the end, it looks like it is in between two [separately owned] vineyards, and it is permitted to sow in it. But if it is not, it is [regarded] as [if it were part of] a winepress. And as for a winepress in a vineyard, and [the winepress] is ten [handbreadths] deep and four wide: Rabbi Eliezer says: it is permitted to sow in it. But the sages prohibit. A watchman’s mound in a vineyard, ten handbreadths high and four wide: it is permitted to sow in it. But if the ends of the vine-branches become intertwined over it, it is forbidden.

A vine planted in a winepress or in a depression [in the ground], they leave it room to work on it, and one may sow on the rest. Rabbi Yose says: if there are not four cubits there, one may not bring seed there. As for a house that is within a vineyard, it is permitted to sow there.

One who plants a vegetable or leaves it to remain in a vineyard, he renders prohibited [as kilayim] forty-five vines. When is this so? When they were planted with either four or five [cubits between rows]. If they were planted with either six or seven [cubits between rows] he renders prohibited as kilayim [the vines within an area of] sixteen cubits in every direction, in the form of a circle, not of a square.

One who sees a vegetable in a vineyard, and said: “When I reach it I will pluck it,” it is permitted. [But if he says:] “When I come back I will pluck it,” if [the vegetable] has [in the meantime] increased by a two-hundredth, it is forbidden.

If he was passing through a vineyard, and seeds fell from him, or [seeds] went [into the field] with manure, or with [irrigation] water, or if he was [in a grain field] scattering seed and the wind blew some behind him [into a vineyard], everything is permitted. If the wind blew the seed in front of him [into a vineyard], Rabbi Akiba says: If it has produced small shoots, he must turn the soil. If it has reached the stage of green ears, he must beat them out. If it has grown into grain, it must be burnt.

One who allows thorns to remain growing in a vineyard: Rabbi Eliezer says: he [thereby] prohibits [the vineyard]. But the sages say: he does not prohibit except if it something that is generally allowed to grow. Iris, ivy, and the king’s lily, and all manner of seeds are not kilayim in a vineyard. [As for] hemp: Rabbi Tarfon said: it is not kilayim, But the sages say it is kilayim. Artichokes are kilayim in a vineyard.