Every year I add a few roses to my garden. The Rose Walk has expanded, the Shed Bed was added and now I have a Rose Bank. Many of the roses are shades of pink; Blanc Double de Coubert, Mount Blanc and Madame Plantier are white, but aside from the spiny Harrison's Yellow, yellow roses have been missing. I am trying to add  that range of color this spring. April Moon is a soft yellow Griffith Buck hybrid…