Name: Dendrobium kingianum Bidwill ex Lindl. 'Compact' Synonyms: Thelychiton kingianus (Bidwill ex Lindl.) M.A.Clem. & D.L.Jones; Callista kingiana (Bidwill ex Lindl.) Kuntze.
Etymology: kingianum — in honor of Admiral Philip Parker King (1791–1856), an Australian explorer and naturalist. 'Compact' denotes a horticultural selection with a particularly compact, low growth habit.
Origin / Distribution: Eastern Australia (Queensland and New South Wales).
Location / Habitat: Lithophytic (growing on rocks). The species inhabits open rock formations and cliffs, often in full sun or partial shade. It is extremely robust and adapted to seasonal dry periods as well as strong temperature fluctuations.
Description & Notes: Dendrobium kingianum is one of the most variable and popular species of the genus. The 'Compact' cultivar is characterized by short, thick, conical pseudobulbs, which usually do not grow higher than 10–15 cm. The leaves are leathery and arranged apically. The fragrant flowers appear on upright inflorescences and vary in color from pale pink to deep purple (rarely white).
In cultivation, this species is virtually indestructible, but requires a pronounced temperature drop in autumn and winter (a cool dormant period at approx. 5–12 °C) as well as a significant reduction in watering to stimulate flower induction. Without this cold period, the plant usually produces only keikis instead of flowers. It prefers a very airy medium made of coarse bark or lava rock.