Echeveria are usually small tight rosettes with triangular tips on chubby leaves. They grow well indoors in a window sill or in shade outdoors and since they sit very low on the soil are subject to rot if overwatered or if the soil does not drain. They stay small indoors but can grow into mounds of rosettes outdoors. They come in a variety of colors which change according to seasons and conditions. When they are more stressed you will see more colors. They tolerate some frost and can be propogated from pups or leaves.