The species roses are the wild and original roses, many of which are still grown and have a well-deserved spot in the garden. Most species roses have five-petaled single flowers, although some have double flowers, with 25 petals or more. Depending on the species, flowers may be white, pink, red, or yellow. Most are large, low-care plants; many can tolerate cold winters. Most species roses bloom only once in summer, although a few repeat their bloom. They are typically referred to by their botanical names; for example, Rosa multiflora.