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Subspecies of wild mallow, belonging to the Malvaceae family, whose exact origin remains debated; it probably originates from the Mediterranean basin and the Near East, and has become widely naturalized in Europe over the centuries, particularly in gardens and around dwellings. It grows in the same ruderal environments as the type species, embankments, rubble, roadsides, but has mainly been maintained and spread through cultivation.
It is distinguished from common mallow by its taller size, reaching 1.2 to 1.5 meters, its erect and robust stems, and especially by its significantly larger flowers, of an intense rose-purple to deep magenta, with broad, crumpled, overlapping petals, traversed by clearly visible dark veins. Some forms have semi-double flowers. This intensity of color, clearly visible in the photographs, immediately distinguishes it from the type subspecies.
In its natural habitat and in cultivation, its flowering extends from June to September. It is very honey-producing and regularly visited by bees throughout the summer.
It is easily cultivated in full sun, in ordinary well-drained soil, even poor. Hardy down to about -15°C, it behaves as a short-lived perennial or vigorous biennial, self-seeding spontaneously with regularity.