I am considering planting roses around the base of my Serviceberry to provide some additional visual interest in my garden. However I believe Serviceberry and roses are from the same genus – are they ok to plant together from a disease perspective?
Roses and Serviceberry are from the same family (Rosaceae) but do not share the same genus. Serviceberry is of the Amelanchier genus and roses are of the Rosa genus. They do suffer from similar diseases and as such one has the potential to influence the health of the other. However, Serviceberry is less susceptible to diseases than are roses.
One of the best planting considerations is to keep them away from Juniper species (Juniperus sp.) to avoid the Cedar-Apple Rust. Other considerations for Serviceberry are outlined in the links below.