Hybrid tea roses produce large numbers of very hardy roses. In some cases, hybrid teas are called by the name "ever-blooming" or a similar name due to their penchant for producing roses even if expired flowers are not removed. Although there are many patented hybrid tea roses, most nurseries carry older, less expensive varieties on which the patent has expired.
Hybrid tea roses were developed in the late 1800s by crossing hardy perpetual roses with less hardy, but higher blossom-producing, tea roses. Hybrid tea rose flowers are well-formed flowers with a high center in the bud and flower and a single bud as a terminal on the flowering stem. Hybrid tea roses are iconic; they came to define the rose during the 20th century.
It is almost impossible to know the total number of varieties of hybrid tea roses. New varieties are created and patented every year. As the rose varieties with the showiest blossoms, there are countless new varieties introduced each year including varieties named for and created by fashion houses like Christian Dior; and varieties created for celebrities who want a rose to be named after them.
Pruning hybrid tea roses will encourage flowering. Most hybrid tea roses grow on new growth, so a severe pruning will encourage more flowering on growth the plant creates to replace the pruned growth. A properly pruned hybrid tea rose may appear to have been severely pruned, but if pruned in the late winter or early spring, the bush that appears to have been cut back to the point of death will send out a lot of new growth in the spring that will result in more flowers than if the bush had not been pruned.
To achieve the most flowers, water your roses regularly. Roses require between 1 and 3 inches of water per week. Water every two or three days, or when the top 1/4 inch of soil has dried out.
Roses can benefit greatly from fertilizer. Use a balanced fertilizer to encourage flowering and flower growth. Organic fertilizers, like fish meal, fish pellets, or fish emulsion, often work very well with hybrid tea roses. If using a chemical rose fertilizer, follow the instructions on the package for quantity and timing. For organic fertilizers, fertilize according to package instructions once a month.