The floribunda rose is a hardy hybrid of the hybrid tea and the polyantha roses, and was created to be used as an ornamental in the garden. They come in single and double-flower varieties and bloom continuously all season. Very easy to care for, floribunda roses are hardy in USDA zones 6 to 10, although there are some varieties suitable for zones 5 and 11.
Choose an area in your garden that gets sun all day. If you live in an area that gets hot in the summer, afternoon shade for the floribunda will help to keep it from getting too stressed.
Prepare the soil for your rose tree by mixing together the existing topsoil, compost and a handful of bonemeal.
Dig a hole 8 to 10 inches deep and place the rose bush in the hole, backfilling and tamping the soil down as you go. When the plant is in the ground, use your hands or feet to firm the soil around the base. Add a 2-inch layer of mulch.
Water daily until it is established in the garden, usually for the first month, then water weekly. Generally, 1 inch of water a week should be sufficient.
Fertilize the floribunda once in early spring and again in early summer. There are many brands of rose food commercially available, just be sure to follow the package directions.
Attack any pest infestations with an all-purpose rose insecticide. According to horticulturists at North Dakota State University, applying insecticide weekly, and after rainfall, will help prevent an infestation.
Prune the rose bush in the late winter, cutting no more than 18 inches of new growth. Horticulturists at the University of Missouri suggest that, when cutting roses, whether for cut flowers or dead-heading, you should leave at least two, five-leaflet leaves remaining on each shoot.