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Rosa rugosa (rugosa rose, beach rose, Japanese rose, Ramanas rose, or letchberry) is a species of rose native to eastern Asia, in northeastern China, Japan, Korea and southeastern Siberia, where it grows on beach coasts, often on sand dunes. [1] It is naturalized in much of Europe and parts of the United States and Canada. [2]
Roses which lack this ability are termed "summer flowering", "once flowering" or non-remontant. Few wild rose species possess remontancy; notable exceptions being Rosa chinensis, Rosa rugosa and Rosa fedtschenkoana. As remontancy is considered a desirable horticultural characteristic, it is preferentially selected for by rose hybridisers.
Rosa 'Sunsprite' (syn. ' KORresia ', ' Friesia ') is a rose variety developed by Reimer Kordes and introduced in 1973. The rose was derived from the cultivars 'Friedrich Wörlein' × 'Spanish Sun', and is one of the most successful floribunda roses.
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However, most cultivars will enter a dormant phase, during which they may experience leaf drop and reduced blooming. In frost-prone areas, bring plumeria indoors before freezing temperatures.
Many of the problems affecting roses are seasonal and climatic. [1] Some varieties of roses are naturally more resistant or immune than others to certain pests and diseases. Cultivation requirements of individual rose species and cultivars, when observed, often assist in the prevention of pests, diseases and disorders. [2]
Most varieties produce a single flower on a stem, but floribunda roses, introduced in the early 20th century, have a spray of several flowers, and are highly popular; they also have more continuous flowering. [6] Most garden varieties still have thorns, though fewer than those in wild species, but some are thornless.
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