'Rosa triphylla Roxb. synonym' rose Description
Photo courtesy of Jonathan Windham
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White, near white or white blend Species.Exhibition name: R. laevigata
Introduced in Australia by Darling Nursery
in 1851 as 'Rosa sinica
White, yellow stamens. Strong fragrance. 5 petals. Average diameter 3.5". Large, single (4-8 petals), borne mostly solitary, cupped-to-flat bloom form. Moderate, once-blooming spring or summer. Medium buds.
Tall, armed with thorns / prickles, climbing, mounded, sends out runners. Large, glossy, dark green foliage. 3 to 5 leaflets.
Height of up to 25' (up to 760 cm). Width of up to 15' (up to 455 cm).
USDA zone 7a through 11. Very vigorous. can be grown as a shrub. can be trained as a climber. heat tolerant. produces decorative hips. Disease susceptibility: very disease resistant.
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André Michaux described Rosa laevigata in Flora Boreali-Americana (1803) from specimens located in the Southern state of Georgia in the USA. The same rose, from China, had been given the name Rosa sinica earlier, in 1789, and was described as in cultivation in 1759. But because the same name, R. sinica, was also used by Linneaus to describe the China rose Rosa chinensis, the name was found to be invalid by Crépin under the rules of taxonomy.
Rosa laevigata Michaux is native to the sub-tropical parts of S.E. China and Vietnam, is naturalized over large areas in the American South, and is not reliably hardy in the USA below Zone 7. See References.