A member of the succulent family, Echeveria grow in a rosette form, and feature a variety of colors and sometimes flowers. Plant a group of them together in a container, or by themselves on a sunny windowsill.
Echeveria prefer full sun, and only need water when the soil is dry (during winter, you may only need to water once per month). Remove old/dead leaves to prevent pests, and take care not to let water sit inside the rosette (try to water at the base of the plants).