This year I used a mixture of Hydrogen Peroxide and water on my rose’s. This mixture offers an excellent source of oxygen for plants. As the picture show’s my rose’s bloomed beautifully this year. To make the mixture fill a spray bottle about 1/3 full of hydrogen peroxide and the remainder with water. Then spray all over the plant including the leaves. You can use this mixture on just about any flower or plant indoors and outdoors. I applied two times a week starting in the spring until the first roses started to bloom.