When there are many rose flowers assembled on a single stem, the grouping is referred to as a cluster-flowered (or cluster-flowering) rose. A huge benefit of cluster roses are the prolific number of blooms per spray and the ability to view different flower hues in that same spray of blooms. Some drawbacks of cluster flowered roses include a less specific bloom shape, in contrast to the rose types with beautifully shaped larger sized flowers, such as the Hybrid teas. With roses of the clustering habit, there certainly is a trade-off for the large sprays thrown in either bloom size or overall flower shapeliness.
Floribundas are the most widely popular cluster flowered roses. If you long for beautiful, well-behaved flowers that also provide you with plenty of cut flowers, then floribundas should be the perfect choice. They are found in a variety of shades and dimensions, enough to suit the tastes of a wide spectrum of rose aficionados. Several types have amazing scent, and throw abundant colorful blooms. Since floribundas thrive from the month of June to hard frost, they tend to make awesome scenic plantings. You get all of the color of Hybrid teas and all of the bloom-power of Polyanthas in this hybrid.
Indeed, Floribundas owe their existence to Dines Poulsen of southern Denmark, who was the first known breeder to cross a Polyantha rose with a Hybrid Tea in 1907. The very hardy and generously-flowering ‘Rödhätte’ (or Poulsen rose) was the result.
Although most Floribunda varieties develop from 2 to 4 feet in height, there are a few plants of this class that grow taller still. Grandifloras is the American name given to these plants. Quite a number of the new kinds have the capacity to yield more than 50 blooms in the same period of time, with the only period of non-flowering being the time between the repeat cycles.
Cluster Roses - Care
Cluster roses are ideal in group plantings. In fact, many public parks or rose gardens feature a wide variety of Floribundas for their showy prolific habit. You can also plant cluster roses individually for the mid-border pop of color in your garden. Plant 2 to 3 feet apart to accommodate for feeding and growth. Floribundas also can do very well in a large pot with adequate drainage and regular feedings.
To deadhead the rose and ensure continued blooms, wait until the cluster is nearly finished and then prune the whole spray with a single cut. For the sake of future bloom production, it is important to deadhead before a lot of noticeable hips develop or the spray production will at that point dramatically decrease. The rose itself will then choose a new location for continued growth.