Application of laws of Kilayim outside Israel

Hi,

Yesterday we began talking about the prohibition against planting two different types of seeds close together (Kilayim), and I mentioned that this is only applicable in Israel.

The Talmudic sages (Kiddushin 36b-37a) pointed out that land-dependent mitzvot - Tithes, the bringing of the first fruit to the Temple, leaving gleanings for the poor, etc - are Israel-linked. The Torah states for land-linked Mitzvot, "When you come into the land [Israel], you shall..."

There are two exceptions to this rule:

1. Arlah - The ban on the first three years of a tree's fruit is actually applicable outside Israel, too, by Sinaitic tradition.

2. Some of the laws against interbreeding plant species were expanded rabbinically to apply outside Israel, to protect them within Israel. Specifically, this refers to laws which are already more strict, with harsher punishments, within Israel. The case of planting seeds close together is not one of those cases.

Have a great day,
Mordechai