Succulents are not new. Are they a fad? Maybe. But it might be a mistake to not take advantage of the species available at this present time. They are definitely a gardening experience that can take you outside of the box! It's like a new Olympic sport....the rules are made on the fly and the book hasn't been written on where, with what or how they should be planted. Perennial or annual, mix or match? Rule #1: be original!