Making the Most of Hard line structure

Last summer we cut back the over growing canopy along this dry wall behind the house. I decided to make the most of the linear structure and sprayed out the top tier of agapathus,replacing it with tubs of tractor seat ligularia. The first tier with the boxes has old fashioned roses with a delightful perfume and old fashioned dahlias. Couldn't believe how expensive dahlia tubers had become. I got mine off pieces from my daughter.