R. coriaceum
Description: Handsome tall variety. Leathery dark green leaves, up to 25 cm long, covered below with an ash grey grey indumentum. Creamy white flowers, blotched with crimson, in trusses of 15-20 flowers. Needs shelter.
Ultimate Height: 8.0 meters after 10 years
Flowering Period: This plants flowers in the North Hemisphere around April
Availability: YES this is a stocked item
Hardiness
UK Zone
3/4RHS Zone
EGF Zone
US Zone
7B/7AMin Temp
-15 to -18°C (5°F to 0°F)Somewhere between Hardy in a sheltered site in most UK, Coastal France and northern Italy and Pacific Northwest gardens, but may be damaged in severest winters. Often early into flower and growth. AND Hardy in all but the coldest parts of Pacific Northwest and UK, France and northern Italy, around Bergen (Norway) and mildest parts of NE USA such as Cape Cod and parts of Long Island. (Please note.)