Bred by M.S. Viraraghavan (India, before 2000).

Hybrid China, Cl., Tea Noisette.  

Pink blend, deep pink shading.  None / no fragrance.  up to 5 petals.  Average diameter 2".  Small, single (4-8 petals), borne mostly solitary, cupped-to-flat bloom form.  Continuous (perpetual) bloom throughout the season.  Small buds.  

Tall, climbing.  Medium, glossy, medium green foliage.  

Disease susceptibility: very disease resistant.  

In India , Science Day is celebrated every year on February 28th, because this day honours the discovery of the ‘Raman Effect’ by Sir C V Raman (1888-1970), well known physicist who won the Nobel Prize for this in 1930. The ‘Raman Effect' is a phenomenon in spectroscopy, which involves a change in wavelength of light when a light beam is deflected by molecules – while most of the scattered light has the same wave length a small part has different wavelengths. Sir C V Raman discovered this phenomenon in 1928.

Viru had a rose seedling from the early 1990s, a cross between Reve d’Or and R. chinensis spontanea (the latter plant sent to us by Martyn Rix of the U.K. who along with Roger Phillips had collected this species in China, perhaps near where Mikinori Ogisu had earlier found it) which showed this scattering of light in its petals and so he nicknamed it early on as ‘Raman Effect’. Viru always had a penchant for roses which had the feature of allowing light to pass through their petals, as opposed to opaque petals.

The plant has grown hugely, climbing up and covering an entire bedroom roof and working its way onto the adjacent dining room roof and chimney. It is fairly constantly in flower, with scattered blooms, but in spring and summer and often, even into autumn, the roof is a mass of reddish single blooms.

I thought it appropriate that we baptise this rose climber with Viru’s code name for it. So today being ‘C V Raman Day’ it gives me happiness to release this rose as ‘RAMAN EFFECT'

Prickles: small size, triangular, brown colour. Pointed foliage.