Is a stonecrop flower a groundcover?
Sounds like dragon’s blood sedum. this is a flower that will product first light green swirly circle leaves near the ground and by late August will product tall stalks with a flat broad flower on top of each. These last a long time – all winter in Canada. Then cut the stalks right down next April or May. The Sedum Acre is a ground cover that has a yellowish folliage and spiky little leaves. It spreads more. The flower kind that I think you have do not spread.