Don from Selma, Ca writes
According to the Bayer Advanced All-In-One Rose and Flower Care label, applications can be done every six weeks for a total of three applications per year. In areas where disease occurs frequently and the soil is sandy, the application interval can be shortened to 4 – 5 weeks for a total of 4 applications per year, except for flower beds, where you are limited to 3 applications.
Answer last updated on: 07/17/2019