Diligent oversight and strict breeding guidelines for the Leonberger have preserved the general health of the breed. In addition , the Leonberger is sensitive to anesthesia, and isofluorane is recommended in its place. The Leonberger is considered a rare breed in the United States, with just over 800 dogs registered in 1995. The relatively small number of Leos, coupled with strictly controlled breeding practices, can make becoming an owner of a Leo very time-intensive. Puppy training and beginning obedience training for both the dog and owner is highly recommended.
Grooming includes frequent brushing, with minimal trimming.
In addition, these dogs must have their toe-nails clipped, and require regular ear cleaning. However, except for its seasonal coat-blowing, shedding is minimal. Whether residing in a town or country setting, a fenced yard is a must. These dogs do need appropriate protection from the elements however.