Sempervivum literally means "live forever" as they can be divided and propagated almost effortlessly. However, don't think that you can just set-it-and-forget-it. Each individual plant has a three-year life cycle and produces off-shoots for two of those years, so you will need to pull out those baby "chicks" and replenish the mother "hen" spot periodically.
These easy-to-grow succulents are great for indoor or outdoor containers. They can also be grouped with other cactus/succulents for a nice layered or contrasting look.
Sempervivum prefer full to part sun and very well draining (sandy/rocky) soils. They need little water and are very drought-tolerant.
Note that there are winter hardy varieties available here in the Mid-Atlantic. They are great in rock gardens and thrive in stone containers or concrete troughs. If you select a tender variety, you must bring it indoors for the winter and they should be kept as container plants to save you from digging and re-planting them out every growing season.
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