Q.How soon should knockout roses bud in the spring?
I have three knockout rose bushes in my garden. Only one has budded and shows signs of growth. Is there anything I can do for the other two bushes to help them bud?
It really depends on the climatic conditions where you are. In colder climates it takes longer for the rosebushes to start getting with the program of growing. Until we get consistent 50 degree nights the growth will be spotty and slow to non-existent. In warmer climates the rosebushes will start forming leaf buds and leafing out far earlier. Since one is showing signs of growth and the others are not yet, I assume you are in a colder climate area. Give them more time in such a case. As the weather warms their soils home things will get energized and growth will start. Once they do start to set leaf buds and leaf out and the dangers of freezes and frosts are gone in your area, feed them and water them well. The rest should take care of itself.