Habitat and Ecology
Ceratocentron fesselii is a critically endangered, miniature monopodial epiphyte that is endemic to the island of Luzon in the Philippines, specifically found in the Cordillera Mountain ranges. It grows on tree trunks and moss-covered branches in native and secondary montane forests at medium altitudes, often between 700 and 1,900 metres. Its habitat provides a cool-intermediate to warm climate, high humidity, and protection from direct midday sun. The species is listed as Critically Endangered (CR) primarily due to illegal over-collecting and habitat degradation.
Description
This is an exceptional mini-miniature orchid, which is the sole known species in its genus. It has an erect, compact growth habit with a very short stem, topped by a fan of three to five very leathery, dark green, elliptic leaves that are only 1-2.5 cm long. In contrast to the tiny plant, the flowers are surprisingly large in proportion, typically measuring 1-2 cm across. The blooms are a brilliant, crystalline orange with a waxy texture. The lip is inconspicuous, but features a short, distinctive horn-shaped spur (which the genus name Ceratocentron refers to, meaning 'horn spur'). Flowers appear in dense clusters on short spikes, often blooming in winter and spring, and are sometimes scented.
Cultivation
Ceratocentron fesselii is a warm-to-intermediate growing orchid that requires attentive care, best suited for a terrarium, humid cabinet, or well-managed greenhouse in the UK. It needs bright, filtered light; too little light will prevent flowering, but the small leaves are sensitive to strong direct sun. The orchid is best mounted on a small slab of cork or tree fern fibre with a small pad of sphagnum moss. If potted, use a very fine, aerated orchid mix. High humidity (75-90%) and strong air circulation are critical to prevent rot while meeting its moisture needs. It should be watered frequently, often daily when mounted, but must dry rapidly between waterings.
Optimal Daytime Temperature: 20-28 C (68-82 F)
Optimal Nighttime Temperature: A small drop is beneficial, ideally 16-19 C (61-66F).
Feed very lightly and sparingly (quarter-strength, balanced orchid feed) during the growing season.
Unique Features
This miniature orchid is a highly valued collector's item due to its Critically Endangered status and its miniature size coupled with remarkably bright, vibrant orange flowers. The striking colour, which is large in relation to the plant, makes it a true eye-catcher for miniature orchid displays. As the only species in its genus, it holds a unique taxonomic position, making it a highly desirable addition for the specialist grower. Please ensure all stock is sourced from reputable, nursery-grown sources only.
Specifications
Plant Size: Deflasked as flowering sized plants in 2025. 2-3 leaves.
Plant Family: Orchidaceae
Plant Passport: A Ceratocentron fesselii B 140084 C [user input] D GB
