Habitat and Ecology
​Sobralia valida is a medium-sized, terrestrial or epiphytic orchid native to Central and South America, with a wide distribution encompassing Panama, Colombia, Venezuela, Ecuador, Guyana, and Brazil. It is found in tropical wet forests and montane areas, ranging from near sea level up to 1,500 metres. This orchid typically grows on the forest floor, on steep embankments, or on trees, thriving in environments with high rainfall and humidity but requiring excellent drainage to prevent root rot in its rich, organic substrate.
​Description
​This orchid is a vigorous, clump-forming perennial with tall, slender, reed-like stems (canes) that can reach up to 1 metre in height. These canes are sheathed by the bases of its plicate (pleated), thin, elliptic leaves. The flowers are borne apically on short, terminal racemes, typically appearing in succession. The blooms are fragrant, relatively compact (around 5 cm long), and distinctively cupped. The colour is often described as ochre-yellow to bright orange, with the sepals and petals having a slightly waxy or velvety texture. The lip is often marked with a deeper yellow or orange band and may have white tips or margins on the petals, creating a subtle but appealing contrast. Like many Sobralia species, the individual flowers are ephemeral, lasting only a short time.
​Cultivation
​Sobralia valida is a warm-to-intermediate growing orchid that requires constant moisture and good light. It needs bright, filtered light to encourage strong canes and blooming, but should be protected from harsh, direct midday sun. It is best grown in a large container using a rich, well-draining terrestrial mix of fine orchid bark, leaf mould, and a small amount of synthetic peat or coir. The plant is a heavy drinker during its active growth period (spring to autumn); the substrate must be kept consistently moist and must not be allowed to dry out completely. High humidity (70%+) is preferred, alongside strong air circulation.
​Optimal Daytime Temperature: 21-28 C (70-82 F)
​Optimal Nighttime Temperature: 15-20 C (59-68 F).
​Feed regularly (weekly) with a balanced liquid fertiliser during active growth. Avoid unnecessary repotting as these terrestrial orchids resent root disturbance.
​Unique Features
​The species name valida means 'strong' or 'sturdy,' referring to its vigorous growth habit and robust canes. This orchid is prized for its attractive ochre-yellow to orange, cupped flowers and its subtle, sweet fragrance. Its ability to form large, impressive clumps of tall canes and the succession of blooms over a long period make it a handsome and rewarding specimen for the warm greenhouse or conservatory floor.
​Specifications
​Plant Size: as seen in the picture
​Plant Family: Orchidaceae
​Plant Passport: A Sobralia valida B 140084 C [user input] D GB