Catherine StewartSpecies rose leaves more medicinally valuable than cultivars

pink rose

The leaves of species roses have been found to have higher concentrations of medicinally valuable phenolic compounds than those of rose cultivars.

Rosa canina. Photo Roberta F

Rosa canina. Photo Roberta F

Researchers in Slovenia studied 4 rose species – Rosa canina, Rosa rubiginosa, Rosa glauca and Rosa sempervirens and compared them to 3 cultivars, Rosarium Uetersen, Ulrich Brunner Fils, and Schwanensee. Analysis looked at both anthocyanins and phenolic compounds in the petals and leaves.

The most marked differences were found in leaf phenolic compounds, with the species roses having consistently higher levels than the cultivars. Rosa canina, the most medicinally used rose, stood out with their high and varied phenolic content.

Study author Vlasta Cunja says that

“the traditional practice of using Rosa canina for medicinal purposes appears scientifically justified because (the species) contains significantly more phenolic antioxidants compared with other naturally occurring rose species of the region”.

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Catherine Stewart

About Catherine Stewart

Award-winning garden journalist, blogger and photographer; writer for garden magazines and co-author of 'Waterwise Gardening'; landscape designer turned landscape design judge and critic; compulsive networker and lover of generally putting fingers in lots of pies. Particularly mud pies. Original creator of GardenDrum. South Coast NSW.

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