Planting Disease-Resistant Roses Near Black Spot Infected Ones: Risk Assessment

Brian wanted to replace black spot-prone roses with resistant varieties but asked if proximity would infect the new plants. Jay needed more info to answer precisely:

Critical Questions

• What are the current rose varieties?
• What new varieties are planned?
• Does Brian want to spray or prefer no-spray?

General Principles

• Black spot spores travel on wind/rain—distance helps but isn't absolute.
• Resistant varieties tolerate infection better (drop leaves but maintain vigor).
• Removing infected plants reduces local spore load.
• Good air circulation and morning sun matter more than distance alone.

Jay's follow-up would tailor advice to specific varieties and spray preference.