'Iceberg (Climbing)' [Cant, 1968]. There are several sports of 'Iceberg', the best white Floribunda ever bred. Cant's form is the best, with large (9-10cm), pure white flowers, with a hint of pink in the half-open flower (plate 156). Cant's sport has distinctive incurved petals and more of them than in the bush form. The flowers are also strongly scented. The plant grows fairly vigorously to about 5 M and, after the first spectacular flowering, is never without one or two flowers for the rest of the year. Its bright green leaves suffer, like the bush form, from blackspot, but that never seems to affect its vigour or floriferousness.
(Charles Quest-Ritson. 2003. Climbing Roses of the World. Timer Press. U.K. p229)