Posted: 10/11/2014 at 10:55
Also helps if you use a non-peat compost and put a grit layer of at least 2 inches depth on top of the pots.
Single stem plants may be protected by putting a circle of plastic (like the things used to protect cabbage plants against cabbage root fly) round the stem. The weevil lays its eggs on or just around the base of the plant and if it cannot reach soil, it goes elsewhere.
Both Sedum and Heucheras can be re-grown very easily from the eaten remains. Just treat the pieces as cuttings. They both root very easily.