Removing Vegetation Growing on Clay Vessels on Shabbat

I have a clay jug in the yard, and in winter, small grasses often grow on the side of the vessel's handle. Is it permissible to remove them on Shabbat due to muktzeh?

Hello, There is a prohibition against removing the grasses primarily due to the prohibition of tolesh, as this is considered a place of plant growth, and this prohibition is from the Torah. This is forbidden in any case, even with the back of the hand or body, or wiping the vessel with a fence or in another manner. Besides the prohibition of muktzeh, which indeed applies to these plants. However, if the grasses are already detached and you just want to clean the jug, there is indeed a prohibition of muktzeh, but the prohibition of muktzeh is only against removing the grasses by hand. You can, however, shake the jug or rub it with something else, thereby removing the muktzeh grasses from the jug.

Shulchan Aruch (Orach Chaim, Siman 336, Seif 5).