I know that I can get good results with Bayer 3 in 1 but it cost $30 per gallon. I know that something is being used on some roses because they are in commericial and they look really good. The big companies are not going to do monthly fertrilize on them or in fact even little companies. This is an example of Bayer on Belendia dream roses. And you can see how it affects Lantana.