A putative hybrid between M. coronaria and M. domestica. Differs from M. coronaria in its larger leaves, thornless branches and larger fruits about 5 cm in diameter. (Fiala 1994).
Distribution United States Georgia to North Carolina
USDA Hardiness Zone 5-9
RHS Hardiness Rating H6
Conservation status Not evaluated (NE)
As a typically pink flowered ornamental with somewhat flattened, yellow-green fruit, this is of marginal importance, although it is often used in the American South for making preserves (Fiala 1994). Seed-raised plants vary, but only one cultivar, ‘Hoopesii’ with large flowers and almost unlobed leaves has never been at all significant; now rare and commercially extinct (Jacobson 1996; Fiala 1994), there is a specimen at Kew dating from 1937, labelled ‘M. hopsii’ (5 m × 82 cm, 2019 – The Tree Register 2020). Trees labelled simply as M. × platycarpa are occasionally seen in botanically orientated collections, for example the Arnold Arboretum, MA (Arnold Arboretum 2020) and RHS Garden Wisley (6.4 m × 48 cm in 2019; planted 1988 – The Tree Register 2020).