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Leaves 5–7 × 3–4 cm, ovate, broadest near the base; margin jagged with deep, irregular, forward-pointing teeth; base usually rounded, less often truncate or cuneate; apex acute; white stellate hairs very sparse, most apparent on midvein beneath. Petals white, obovate, at least the basal half overlapping. Styles and stigmas white. Carpels 5–12; mericarps with only rudimentary wings. (Pers. obs. 2021)
USDA Hardiness Zone 8-10
RHS Hardiness Rating H4
A large-flowered, more or less evergreen hybrid apparently involving H. lyallii or H. glabrata as well as H. angustifolia or H. sexstylosa. Its very jagged leaf outline is distinctive. The flowers, peaking in late July or early August, have the rounded rather than starry outline of the deciduous species. Like ‘Glory of Amlwch’ which has a similar supposed parentage, it is semi-evergreen, losing most of its leaves in cold winters. Garden origin, probably in Britain, before 2012.