I live in Amherst, NY.
I am new to taking care of roses .
I have 2 existing climbing rose bushes and I have started a whole new bed to plant 3 new hybrid tea rises . I had my soil tested and the ph is 7.3 .
My Savid Austin climber blooms beautiful in June but then throughout the season the leaves start to die back and looks terrible.
The other climber is fine .
I want to sprepare my new bed so my roses have an optimum growing condition. What should I do to the soil?