Origin:
Bulbophyllum dahlemense Schltr., commonly known as Dahlem Bulbophyllum, is a species of the orchid family that is native to the islands of the Philippines.
Common Names:
Aside from Dahlem Bulbophyllum, this plant can also be referred to as the Dahlem Island Bulbophyllum due to its origin and The Philippine Fly Orchid due to its insect-like shape.
Uses:
Bulbophyllum dahlemense Schltr. is grown mainly for its aesthetic value. The exotic blooms make excellent conversation pieces, especially for those who are intrigued by unusual, unique and exotic plants. This plant is also used for breeding programs to produce new hybrids due to its fascinating insect-like appearance.
General Appearance:
The Dahlem Bulbophyllum is an epiphytic plant, which means that it grows on other plants or trees, but does not rely on them for its nutrition. The plant has small, round pseudobulbs that resemble tubers, each about 1.5 to 2 cm long, and which produce one to two linear, tough, leathery leaves that are approximately 20 cm in length. What makes the Dahlem Bulbophyllum stand out is its flower. Each bloom can have up to 10 flowers, each with a unique shape that resembles a flying insect, which is why it is often referred to as the Philippine Fly Orchid. The flowers are usually yellow or green with brown markings, and they thrive in warm and humid climates.
Light requirements
The plant Bulbophyllum dahlemense Schltr. requires bright, indirect light. Direct sunlight can harm the plant, so it should be placed in a location with filtered or diffused light. Eastern or western-facing windows can provide the ideal amount of light for the plant.
Temperature requirements
Bulbophyllum dahlemense Schltr. prefers warm temperatures, with a range between 18-27°C (65-80°F). The plant should be kept away from cold drafts or sudden temperature changes. Humidity levels also play an important role in the plant's growth. It likes humidity levels between 60-80%, which can be provided by using a humidifier or placing a tray of water near the plant.
Soil requirements
Bulbophyllum dahlemense Schltr. should be potted in a well-draining soil mixture that contains a blend of orchid bark, sphagnum moss, and perlite. The plant prefers slightly acidic soil with a pH range between 5.5-6.5. It is important to avoid overwatering as the plant can be susceptible to root rot. Watering should be done when the top layer of soil feels dry to the touch. Fertilization can be done once a month using a balanced fertilizer.
Cultivation methods for Bulbophyllum dahlemense Schltr.
Bulbophyllum dahlemense Schltr. is an orchid species that requires specialized cultivation conditions. It is best grown in well-draining media, such as bark, sphagnum moss, or a combination thereof. Additionally, the plant prefers a warm, humid environment, with temperatures ranging between 18°C to 24°C and relative humidity levels of 50% to 70%. Bulbophyllum dahlemense requires bright, indirect light, as direct sun can scorch the leaves.
Watering needs for Bulbophyllum dahlemense Schltr.
Bulbophyllum dahlemense requires a consistent watering routine to maintain good health. Typically, the plant should be watered every 7 to 10 days, depending on the humidity conditions. It is important to ensure the potting media is thoroughly moistened, but not water-logged. Avoid allowing the plant to sit in standing water, as this can lead to root rot and other fungal diseases. During periods of dormancy, water the plant sparingly to prevent dehydration.
Fertilization of Bulbophyllum dahlemense Schltr.
Bulbophyllum dahlemense requires regular fertilization to promote healthy growth and blooming. Use a balanced fertilizer, with an equal ratio of nitrogen, phosphorus, and potassium. Dilute the fertilizer to half its recommended strength and apply every two weeks during the growing season. During periods of dormancy, reduce fertilization to once a month or suspend fertilization entirely. Avoid overfertilization, as this can lead to salt buildup, which can damage the plant.
Pruning Bulbophyllum dahlemense Schltr.
Bulbophyllum dahlemense requires minimal pruning, and only dead, diseased, or damaged foliage should be removed. Use sterile, sharp shears to make the cut, and avoid cutting into healthy tissue. Pruning should be done during the growing season when the plant is actively growing and has the capacity to heal quickly. Always ensure the tools you used for pruning are sterilized to prevent the spread of disease.
Propagation of Bulbophyllum dahlemense Schltr.
Bulbophyllum dahlemense Schltr. can be propagated through various methods, including division, seed propagation, and tissue culture.
Division
Division is the easiest way to propagate Bulbophyllum dahlemense Schltr. This method involves splitting the plant's rhizome into several pieces, each with at least one new growth and a few healthy roots.
The best time to divide Bulbophyllum dahlemense Schltr. is during the spring season, just before new growth appears. Carefully remove the plant from its pot, and tease apart the rhizomes with your fingers or a sterile knife. Each divided piece should be placed in a pot with well-draining potting mix, and watered regularly.
Seed propagation
Seed propagation is another way to propagate Bulbophyllum dahlemense Schltr. This method requires more time, effort, and patience than division. Seeds can be obtained by pollinating the flowers of the plant or purchasing them from a reputable seed supplier.
Before sowing the seeds, they must be scarified (scratched gently with sandpaper) to encourage germination. The seeds should then be sown in a seed tray filled with a sterile seed-starting mix, and covered lightly with soil. Keep the tray in a warm, humid place, and mist regularly to maintain moisture levels. The seeds will usually germinate within 3-6 weeks.
Tissue culture
Tissue culture is a more advanced propagation method, which involves growing new plants from a small piece of plant tissue in a laboratory setting. This technique produces disease-free, genetically identical plants quickly and efficiently.
Tissue culture can be done by taking a small piece of plant tissue, such as a leaf or stem, and transferring it to a nutrient-rich medium in a sterile flask. The flask is then incubated in a controlled environment with the right temperature, light, and humidity levels. Within a few months, the tissue will grow into a new plantlet, which can be transferred to a pot with soil and grown until it reaches maturity.
Disease Management
Bulbophyllum dahlemense Schltr. is susceptible to a variety of diseases that can cause severe damage to the plant if left untreated. Some common diseases affecting this plant include rots, leaf spots, and fungal infections. Proper cultural practices can help prevent disease outbreaks, but when disease symptoms develop, it's essential to take action to prevent further damage.
To manage diseases effectively, remove infected plant parts and dispose of them properly. Avoid getting water on the plant's leaves and reduce leaf wetness by improving air circulation around the plant. Fungicides can also be used to control fungal infections, but it's important to follow the instructions carefully to avoid damaging the plant.
Pest Management
Bulbophyllum dahlemense Schltr. is also vulnerable to pests that can damage the plant's leaves, flowers, and bulbs. Common pests known to attack this plant include spider mites, mealybugs, scale insects, and thrips. Preventing pest infestation is the best way to manage them.
To keep pests from attacking your plant, avoid putting the plant in a crowded area, and keep the surrounding environment clean. A regular inspection of the plant can help you monitor the presence of pests, identify them early, and take action to manage them.
If pests are present, insecticidal soap or horticultural oil can help control them. Neem oil is also an effective and organic option that can help manage pests without damaging the plant.
If the pest infestation is severe, you may need to remove and dispose of the infected plant parts entirely. This can help prevent the spread of the pest to other plants in your collection.
