Containerized plants can be set out at any time, but early fall is best. Common pests on hollies are scale, bud moth, red mites and leafminers. Root rot diseases are a problem with several Japanese cultivars. They are usually 3 to 10 feet high, with a similar spread and look more like a boxwood than a holly. Japanese hollies tolerate severe pruning.
Many cultivars are available.
Roundleaf' is a male selection that does not produce berries. Plants grow 5 to 10 feet tall and 5 to 12 feet wide. Burfordii' or Burford holly grows to 20 feet tall and wide. Rotunda' or Dwarf Chinese holly grows only to 3 to 4 feet tall and 6 to 8 feet wide. American hollies grow into trees to 50 feet tall.