Gardeners make substitutes for impatiens on Garden Walk Buffalo

by Connie Oswald Stofko During last year’s Garden Walk Buffalo, mounds of impatiens were flowering robustly at 689 West Delavan, Buffalo.  But just a few weeks later, the impatiens were dropping their leaves. By September, the impatiens were gone, a victim of downy mildew.  This year, Luis Martinez and Jeff Wilson were among the gardeners who had to find different plants to use in shady areas. I visited them during Garden Walk Buffalo, held July 27 and 28. With 376…