How to plant this design this long garden
I'm not the best at garden design and this one has me wondering what to do. I have an enclosed bed - about 4' wide by 25' long. I want to plant a bunch of irises, lillies and some smaller annuals. My question is - should I just plant in rows (for example one long row of theh taller lillies, with shorter plants in front or should I clumb/group mixes of these? Not sure the best approach...