I purchased 10 knockout roses nearly 2 years ago. Planted about 20' in from a narrow 2 lane private road (very light traffic). I created a bed used landscape fabric, and small white marble stones as a mulch bordered by decorative landscape blocks in front with a white picket fence behind. I fertilized them once with a fertilizer designed for roses. I would expect by now (?) the bushes would have filled in nicely. Wrong....they are alive but they haven't grown much larger than the day I bought them. What do you suggest? Thank you.
When rosebushes are not taking off, the first thing I think of is that there may be something not right about their soils home. I would dig out a soils sample in 3 to 4 places along the rose bed and have the soils tested. Let them know the problems you are having so they can look specifically for things that may be causing a problem. soils pH can be a big problem as the pH not being right can lock up available nutrients in the soils so that the root system just cannot take them up and use them properly.
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