Polyanthas have large flower clusters but each flower smaller than floribundas. Grandifloras have long-stemmed flowers. Growth rate is fast. Can spread up to 15 feet in a few years. Good for city and seaside.
Growth rate is fast.
Excellent for highway slopes. Not prone to leaf diseases. Not well suited for coastal area. Growth rate is fast. Plants in swampy areas taller than those in drier locations.