The Rosa genus, native exclusively to the Northern hemisphere, includes more than a hundred
species from Asia, Europe and North America. Many years of selection and hybridization have produced
over 20,000 cultivars in an amazing array of shapes and colours. Roses are available in every colour
except blue, from scarlet red to bright yellow and every possible shade of pink.
From the Montréal Botanical Garden Horticultural Leaflet 1F5 and 1F4.
This presentation is part of the Horticultural Leaflets WEB+ Series of the Green Pages.
