R. protistum var giganteum
Description: Forms a huge rounded specimen. Leathery leaves are often 56x25cm. Large trusses of deep rose flowersFebruary-March. Must have a sheltered position.
Ultimate Height: 0.0 meters after 10 years
Availability:  This plant is not available. We are seeking plants of this form. Please contact us if you have it.
Hardiness
UK Zone
2/3
RHS Zone
EGF Zone
US Zone
8A/7B
Min Temp
-12 to -15°C (10°F to 5°F)
Somewhere between Hardy outdoors in milder parts of UK (such as Cornwall, Argyll), southern Ireland, most of California, also west Vancouver Island, Canada, most of New Zealand, Tasmania. amaged in severest winters. Often early into flower and growth. AND 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. (Please note.)