Dendrobium purpureum is native to Vanuatu, Fiji, Bougainville, New Guinea, the Caroline Islands and the islands of the Malay Archipelago. This plants occur on coastal lowlands and in mountain forests, from sea level up to 1150 m. They were also encountered on trees in the forest at an altitude of 800 m, on Mt.Klabat (Minahassa). Flowering size plant on sale.