Different Kinds of Roses
These are roses as nature gave them to us. They are the species of the genus Rosa found growing naturally throughout the Northern Hemisphere. These roses are an enormously varied group of plants. They are vigorous, thriving on minimal maintenance, and tend to be extremely hardy and disease-resistant. It should be noted however, that there is variability within species. Some may be more tolerant than others.
Old European Garden Roses
here are five classes of roses that make up what is known as the most venerable group of cultivated roses. They are Gallica, Damask, Alba, Centifolia, and Mosses, and represent the hybrid groups that prevailed in European gardens prior to the widespread trade of Rosa chinensis in the eighteenth century.
Hardy Repeat-Blooming Old Roses
hardy old garden roses offer just about everything a gardener could ask for in a rose: extreme winter-hardiness, excellent tolerance to disease, exquisite blooms, and outstanding fragrance. The one thing that is lacking is recurrent bloom throughout the summer. Gardeners wanting to combine all of the qualities mentioned above with rebloom capabilities need only to look toward the Bourbons, Portlands, and Hybrid Perpetuals.
The modern age of rose growing began officially when a new class of rose was developed from a tea/hybrid perpetual cross. The year was 1867, the hybridzer was Jean-Baptiste Guillot, the rose was ‘La France,’ and the class that was born was the hybrid tea. The most popular roses sold and the ones that have the most name recognition in the modern rose class are the hybrid tea, floribunda, and grandiflora.
“Shrub rose” may be a poor choice of words, and as a result the term is largely artificial because all roses are in fact shrubs –just as is a lilac or a forsythia. “Shrub,” as applied to roses, is more a case of definition by usage rather than by description.
Shrub roses are noted for their well-rounded shape, their exceptional winter hardiness, and their better than average disease resistance.