Bulbophyllum falcatum

RHS Plant Profile
sickle-shaped leaf bulbophyllum
sickle-shaped leaf bulbophyllum Valeria Valkova
Conservatory Greenhouse

A miniature, warm-growing orchid, found growing on trees and occasionally rocks, producing angled, swollen stems, which store water and nutrients called pseudobulbs, growing to 10cm high. Each are adorned with two sickle-shaped leaves at their tips produced along a creeping stem which roots onto the bark or rock to provide support. Up to 14 flowers are produced along each side of a maroon coloured, flattened flower stem, appearing in winter and spring. They have an unpleasant smell. The dorsal petal is yellow and white on the inside and purple on the outside. The inner petals are wrapped in whorls around the base of the flower and are purple. There is a pronounced, purple, tongue-like lip called a labellum

Position

Partial shade

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
Up to 10 cm

Growing Conditions

Moisture
Moist but well–drained
pH
Neutral

Position

Partial shade
Aspect
East–facing or North–facing or West–facing
Exposure
Sheltered
Hardiness
H1A

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Orchidaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming, Spreading branched
Genus
A large, diverse genus of mainly epiphytic, sympodial tropical orchids, producing a clump of small pseudobulbs, which serve as plant’s storage for water and nutrients. Most species carry one leaf on top of each pseudobulb. Over 2000 species have been described and accepted
Name Status
Correct
Plant Range
C Africa

How to Grow

Cultivation

Grow in an open, well drained but moisture-retentive mix of medium orchid bark, sphagnum moss and perlite. Shallow, wide pots or baskets are best used to accommodate its spreading habit. Bright filtered light is best as direct sunlight through glass can scorch its leaves. Prefers a minimum night temperature of 15°C and a maximum of 30°C in the daytime. Nighttime temperatures should be 10°C lower than daytime temperatures for good growth and is beneficial to induce flowering. High humidity is required along with gentle air movement. Allow plants to freely drain when watering and avoid plants sitting in water as this can cause roots to rot. Plants may be intolerant of hard tap water, so irrigate with rainwater at room temperature. Orchid fertiliser can be applied regularly throughout the growing season, March to September. Reduce watering and feeding in winter months. See indoor orchid cultivation for further advice

Propagation

Propagation by seed is only possible in a controlled laboratory environment. Mature plants may be divided when the plant overgrows its container. Each division should have at least 3 older pseudobulbs with a sufficient amount of stored energy and water, to support new growth and reduce stress after repotting

Suggested planting locations and garden types

  • Conservatory and greenhouse

Pruning

No pruning required. Remove spent flower stem at the base

Pests

May be susceptible to mealybugs and scale insects

Diseases

Generally disease-free