A lid for a flower pot

Before a longer trip, it is worth equipping all pots with plants with thin plastic lids. They will significantly extend the drying time of the earth. In the lid, in a strictly defined place, cut a hole for the stem of the plant and cut the lid, so that after opening both parts you can slide the lid over the pot, without damaging the plant. The diameter of the lid should be exactly matched to the size of the pot.