Polyanthas. Most rose classifications have absorbed polyanthas into the floribunda class even though the older cultivars are distinctly different. Polyanthas are mostly low growing, continuous-blooming plants, producing large clusters of small flowers.
Heritage. The heritage class is a combination of all the “old” roses that were developed in the nineteenth century. Most are more important in a historical sense than in ahorticultural sense. The principal “old rose” types are Gallica, Damask, Alba, Centifolia (cabbage rose), Moss, Noisette,Bourbon and Musk. The hybrid perpetuals, tea roses and China roses, are from the heritage group of old roses, but their separate classification is often retained because many are still common today.
Shrub roses. This is a miscellaneous group of several wild species, hybrids and cultivars that vary widely botanically and develop large, dense bushes more closely resembling shrubs
used in landscape planting. Most of the shrub roses are vigorous, hardy and resistant to insects and diseases. Their attractive foliage, small flowers and fall seed pods (hips) make
them useful for hedge and screen plantings. Some of the more important and attractive roses in this
class include: Rugosas, Father Hugo rose, Sweetbriers, Nevada, Chestnut, Austrian copper and Kordesii. Tree roses. Tree, or standard, roses are distinctive because
of the form of the plant rather than the type of flower. They are used in formal plantings or to accent a particular part of the garden. Many of the better-known cultivars of bush roses are
available as tree roses. Tree roses are produced by grafting a
bush rose on an upright trunk (standard). The upper graft is difficult to protect during the winter.
Climbing roses. Climbing roses are not botanically true climbing plants since they do not form tendrils for self support. They need to be tied and trained to a trellis, fence, building or other structure. These roses produce long, heavy canes that grow from 8 to 15 feet. Climbers may be everbloomingor spring blooming. Flowers are produced in loose,
open clusters of 5 to 25 blooms and may take 2 years to reach full bloom after planting.
Climbing roses may be classified as climbing hybrid teas, climbing teas, climbing grandifloras, climbing floribundas, climbing polyanthas, large-flowered climbers, pillars, ramblers,
trailing and everblooming. There is much overlapping of
the various classes, and one climber may fit several classes.
Heritage. The heritage class is a combination of all the “old” roses that were developed in the nineteenth century. Most are more important in a historical sense than in ahorticultural sense. The principal “old rose” types are Gallica, Damask, Alba, Centifolia (cabbage rose), Moss, Noisette,Bourbon and Musk. The hybrid perpetuals, tea roses and China roses, are from the heritage group of old roses, but their separate classification is often retained because many are still common today.
Shrub roses. This is a miscellaneous group of several wild species, hybrids and cultivars that vary widely botanically and develop large, dense bushes more closely resembling shrubs
used in landscape planting. Most of the shrub roses are vigorous, hardy and resistant to insects and diseases. Their attractive foliage, small flowers and fall seed pods (hips) make
them useful for hedge and screen plantings. Some of the more important and attractive roses in this
class include: Rugosas, Father Hugo rose, Sweetbriers, Nevada, Chestnut, Austrian copper and Kordesii. Tree roses. Tree, or standard, roses are distinctive because
of the form of the plant rather than the type of flower. They are used in formal plantings or to accent a particular part of the garden. Many of the better-known cultivars of bush roses are
available as tree roses. Tree roses are produced by grafting a
bush rose on an upright trunk (standard). The upper graft is difficult to protect during the winter.
Climbing roses. Climbing roses are not botanically true climbing plants since they do not form tendrils for self support. They need to be tied and trained to a trellis, fence, building or other structure. These roses produce long, heavy canes that grow from 8 to 15 feet. Climbers may be everbloomingor spring blooming. Flowers are produced in loose,
open clusters of 5 to 25 blooms and may take 2 years to reach full bloom after planting.
Climbing roses may be classified as climbing hybrid teas, climbing teas, climbing grandifloras, climbing floribundas, climbing polyanthas, large-flowered climbers, pillars, ramblers,
trailing and everblooming. There is much overlapping of
the various classes, and one climber may fit several classes.
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