Question
Hi, Could you please let me know how much Urea I should give each rose bush this spring.  I also will be giving them Rose Tone Organics + 4 mo release Osmocote at one time.  I do this once then supplement with water solubles like Miracle Grow, etc. till August.
Thanks!  Zone 6 - suburb of Detroit, Michigan

Answer
Roses do not need that amount of fertilizer. What happens is that it encourages soft growth which in turn attracts insects and diseases. Your slow release Osmocote is ideal as roses don't benefit from instant type fertilizers. Urea is usually never used on roses.