There are certain ‘families’ of plants that I like to use and Sedum is one that will come up all the time.
Colourful, Hardy, unusual form, unusual leaf texture, all year round interest, easy to maintain and pollution resistant. If it had any decent smell, it would be a top 10 all-rounder. Spring is on its way and these are a great border filler but you’ll have to wait till the autumn to see it like it is above. You will get to enjoy it in its other forms for the rest of the year though.