Small in size, big in charisma: Ascocentre pumilum is a miniature orchid with a strikingly elegant inflorescence. This botanical species from Southeast Asia is extremely rare in culture and is especially prized by advanced lovers of epiphytic orchids and micro-orchids. Despite its size, this species has remarkably rich blooms, often in subtle shades of lilac, pink or orange.
Ascocentrum pumilum is native to mountainous forests of Thailand, Laos and Cambodia. There it grows as an epiphyte on tree branches in warm, moist conditions with plenty of air circulation. The species is special because of its compact habit and fine, delicate flowers. In recent taxonomic classifications it is often placed under the genus Vanda, but among enthusiasts the name Ascocentrum remains common for this unique miniature species.
The plant forms a compact, upright rosette of short, stiff leaves with a light gray-green to deep green color. The roots are thinner than in larger Vanda-like plants, but remain strong and well-developed with adequate humidity. The inflorescence usually appears on the side of the plant and bears dozens of small flowers, often in soft pink to lavender-purple hues with a yellow accent at the center.
Flowering is subtle but impressive for the size of the plant.
Lots of bright, indirect light to light morning sun. This species needs a relatively large amount of light for its size. Too little light hinders flowering.
Between 20-28 C during the day and preferably not below 15 C at night. Can handle slight cooling, but then grows slower.
Best tied up on cork or bark, possibly with a thin layer of sphagnum around the root base to prevent drying out. In a basket with coarse bark is also possible, provided there is adequate air circulation.
Between 70% and 90%. A tropical microclimate is desirable. Suitable for greenhouse, growth cabinet or humid vitrine.
Spray daily in warm months; in winter or lower temperatures 3-4 times a week. Always use demineralized water to prevent mineral accumulation.
Feed weekly during active growth with an orchid fertilizer at strength. During dormancy, 1 every 2-3 weeks is sufficient.
Flowers usually in spring or early summer. Under stable conditions, the plant can flower several times a year. Flowers last a long time and, in some clones, emit a slight odor.
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