Deb is right about the hardy reliability of Stellas.
Thats why they are used in commercial landscaping. I see a doctor and his suite is in a cluster of professional buildings all have the same scape. The landscapers put down weed barrier then planted the stellas and some other plant that is struggling.
OHH forgot to mention they used pea gravel instead of mulch. Makes me sad to see the DL nubs trying to stem and bloom. ALL landscaping is for the convenience of the ease of labor and therefore cost.