Hi - I am a new lover of succulents. I am wondering whether succulents are often carried in chain stores (ex: Home Depot) or nurseries - either year round, or seasonally. I found some at a Home Depot in another state, but when I checked my local store, there were limited succulents available. If not, in your experiences, what are some good online stores to look at?

I'm also looking for a Gibbaeum plant, but haven't been able to find anything online. I found seeds, but wanted to see what the more experienced gardeners thought about growing it from seed. :)

Thanks in advance for your help!