Origin of Bulbophyllum Triste
Bulbophyllum triste is a species of orchid that is native to the Philippines. It can be found growing in cavities of rocks in montane forests and mossy forests at elevations of 1000 to 2100 meters above sea level.
Common Names
Bulbophyllum triste is commonly known as the "Sad Bulbophyllum" and "Dark Bulbophyllum" due to the color of its flowers. It is also known as "Pasiok" in the Philippines.
Uses of Bulbophyllum Triste
Bulbophyllum triste is primarily grown as an ornamental plant for its beautiful and unique flowers. It is a popular plant among collectors and is often grown in terrariums or as a houseplant. In traditional medicine, the plant is believed to have antipyretic properties and is used to treat fever and other ailments in some parts of the Philippines.
General Appearance of Bulbophyllum Triste
Bulbophyllum triste is a small epiphytic orchid that produces clustered pseudobulbs that are roughly 1.5 cm in length. The leaves grow from the pseudobulbs and are typically 2.5 to 7 cm in length. The flowers of the plant grow on a long inflorescence and are dark brown to black in color, resembling small sad faces. The lip of the flower is long and slender, and the sepals and petals are thin and twisted. The plant blooms in the summer and fall, and the flowers last for approximately two months.
Light Requirements
Bulbophyllum triste (Rolfe) Schltr. requires a bright to moderate light source but must be protected from direct sunlight. Direct sunlight can burn the foliage of the plant, and excessive shade can slow down its growth.
Temperature Requirements
The plant thrives best under warm to hot temperatures, ranging from 18°C to 28°C. It is important to avoid abrupt fluctuations in temperatures to prevent shock to the plant. Nighttime temperatures should be about 5-6°C lower than daytime temperatures.
Soil Requirements
Bulbophyllum triste (Rolfe) Schltr. grows well in an orchid mix, which contains material such as sphagnum moss, perlite, and coconut coir. It requires a well-draining medium that can hold sufficient moisture for the plant's roots. It is essential to keep the medium evenly moist but not waterlogged.
Cultivation Methods
Bulbophyllum triste (Rolfe) Schltr., commonly known as the 'Sad Bulbophyllum,' is an orchid species found mainly in South and Central America. When it comes to cultivation, this plant requires a humid and warm environment to grow, similar to its natural habitat. It is recommended to grow this orchid in a hanging basket or mounted on a tree trunk, as it requires good air-circulation around its roots.
This orchid prefers a partially shaded spot in your indoor garden or greenhouse, where it can get filtered sunlight. Direct sunlight can lead to the scorching of the leaves. Also, make sure to place the orchid away from any air conditioning vents or drafty areas.
Watering Needs
Proper watering is an essential aspect of Bulbophyllum triste (Rolfe) Schltr. care. Like most orchids, this plant does not do well when overwatered or if its roots remain wet for an extended period. It is best to water this orchid once or twice a week and allow the soil to dry out partially in-between watering sessions.
While fertilizing, keep the soil moist. Use lukewarm water while watering the orchid as it is sensitive to cold water. One can also use a soluble fertilizer which will be completely soaked up by the soil in around three - four hours of the watering regime.
Fertilization
Bulbophyllum triste (Rolfe) Schltr. requires frequent fertilization, mainly during the growth season, to achieve optimal growth. Fertilize the orchid every two weeks with a balanced fertilizer, which comprises three equal parts nitrogen, phosphorus, and potassium.
The plant also requires the correct type of fertilizer. A balanced orchid fertilizer that has readily available nitrogen like fish emulsion, manure solubles (liquid fertilizers from manure), or urea is the best. Always make sure to dilute the fertilizer according to the ratio mentioned in the package instructions.
Pruning
Pruning is not a necessary step for Bulbophyllum triste (Rolfe) Schltr. orchids. But, it is a good idea to remove the old stems that are no longer blooming and have turned yellow. This will channel the plant's focus on developing new leaves and root growth instead of feeding the old growth. Also make sure to sanitize the pruning tool before use, to prevent any infections.
Moreover, removing dead leaves or un-wanted bud spikes is an effective method of pruning, which channels the plant's energy into healthy growth instead of waste.
Propagation of Bulbophyllum triste
Bulbophyllum triste can be propagated through a variety of methods, including division, backbulbs, seed, and keiki propagation.
Division
Division is the most common method of propagation for Bulbophyllum triste. This involves carefully separating the plant into smaller sections, each with some roots and pseudobulbs. Divisions should be done during the plant's dormant season, which is usually in the fall or early winter.
Backbulbs
Backbulb propagation involves using old pseudobulbs that are no longer producing leaves or flowers. These can be separated from the parent plant and potted up individually. While this method is slower than division, it can be useful if the plant does not have many pseudobulbs or if it is not yet mature enough to divide.
Seed
Propagation by seed is also possible, although it can be more difficult. Seeds should be sown in a sterile, well-draining medium and kept moist but not soaked. Germination can take several weeks to several months, and the resulting seedlings may take several years to mature to the point of flowering.
Keiki propagation
Finally, Bulbophyllum triste may occasionally produce keikis, or baby plants, from old flower spikes. These can be carefully removed and potted up on their own once they have a few roots and leaves of their own. Keiki propagation is less reliable than division or backbulbs, but it is a useful way to increase the number of plants for hobbyists who want more than one specimen.
Disease and Pest Management for Bulbophyllum triste (Rolfe) Schltr.
Bulbophyllum triste (Rolfe) Schltr., commonly known as the Sad Bulbophyllum, is a species of orchid that is native to Southeast Asia. While it is a hardy plant, it is still susceptible to a variety of diseases and pests that can harm its growth and overall health. Here are some of the most common diseases and pests that might affect the plant and the best ways to manage them.
Common Diseases
1. Root Rot: Root rot is a common disease that affects many orchids, including Bulbophyllum triste. It is caused by overwatering or poorly-draining soil, which leads to the roots becoming waterlogged and rotting. To manage root rot, it is important to ensure that the plant is not overwatered and that the soil is well-draining. If root rot is detected, remove the affected roots and repot the plant in fresh soil.
2. Leaf Spots: Leaf spots are another common problem for Bulbophyllum triste. They are caused by bacteria or fungi and can lead to discolored, spotted leaves. To manage leaf spots, it is important to prune affected leaves and improve air circulation around the plant. Avoid getting water on the leaves and use a fungicide if necessary.
Common Pests
1. Spider Mites: Spider mites are a common pest that can damage Bulbophyllum triste. They are tiny insects that feed on the plant's leaves, causing damage and discoloration. To manage spider mites, it is important to improve humidity around the plant and use insecticidal soap or neem oil to kill the insects.
2. Mealybugs: Mealybugs are another common pest that can affect Bulbophyllum triste. They are small, white insects that feed on the plant's sap and can cause significant damage to the plant. To manage mealybugs, it is important to remove affected areas of the plant and use insecticidal soap or neem oil to kill the insects.
By taking these steps to manage diseases and pests that might affect Bulbophyllum triste, you can help ensure that your plant remains healthy and vibrant for years to come.
