Grandiflora roses blend the best traits of hybrid teas and floribundas. They produce the same elegantly shaped blooms as hybrid teas, but in long-stemmed clusters that continually repeat, like floribundas. The plants tend to be tall (up to 7 feet), hardy, and disease-resistant. Because of their size, grandifloras are suited to hedging and flower-border backgrounds. This rose category was created to accommodate the unique 'Queen Elizabeth' rose introduced in 1955.