Origin
Bulbophyllum melleri (Hook.f.) Rchb.f. is a species of orchid native to Myanmar (Burma), Thailand, Malaysia, and Indonesia.
Common Names
The plant is commonly known as Meller's Bulbophyllum or Meller's Dendrobium.
Uses
Bulbophyllum melleri has no known medicinal uses. However, this plant is often cultivated as an ornamental plant and is used as decoration or as a gift to plant enthusiasts or flower collectors. Some species are used in the production of fragrances, but B. melleri is not highly regarded in that regard.
General Appearance
Bulbophyllum melleri has an interesting appearance with its vibrant yellow flowers that are splashed with purple, small triangular leaves, and long inflorescences that can produce up to 45 flowers. The plant has a creeping habit, with each pseudobulb growing abutted to the one next to it, and a heavy trailing nature. Meller's Bulbophyllum generally thrives in warm, humid environments, and needs light watering to avoid dehydration. It is a relatively small plant, with a height of about 10-15cm (4-6 inches). Despite its size, it has the potential for high ornamental value given its unique floral display.
Light Requirements
Bulbophyllum melleri thrives best in diffused, bright light conditions. It is sensitive to direct sunlight that can scorch its leaves. Growers should place the plant in an east or west-facing windowsill, or use an artificial grow light, to ensure it receives enough light to promote healthy growth without damaging it.
Temperature Requirements
Bulbophyllum melleri grows in an intermediate to warm temperature range. It does well in daytime temperatures ranging between 20-30°C (68-86°F) and night temperatures between 15-20°C (59-68°F). This species is sensitive to extreme temperature changes, so growers should strive to maintain consistent, moderate temperature conditions.
Soil Requirements
Bulbophyllum melleri's growing medium should be loosely packed, well-draining, and airy. A mixture of orchid bark, sphagnum moss, perlite, and charcoal offers an excellent combination for this plant. Growers should avoid using standard potting soil, as it holds too much moisture and can cause root rot, which can kill the plant.
Cultivation Methods
Bulbophyllum melleri is a tropical orchid that thrives in warm, humid environments. It can be grown indoors in pots, or outside in a sheltered area. The ideal temperature range for this plant is between 60-85°F (15-29°C), and it prefers bright, indirect light. The plant grows on a rhizome, which means it needs a well-draining potting mix that allows for good air circulation.
Watering Needs
When it comes to watering, Bulbophyllum melleri prefers to be kept consistently moist. Water the plant once a week, or when the top inch of the potting mix feels dry to the touch. Use room temperature water, as cold water can shock the plant. Avoid over-watering, as this can lead to root rot. It's essential to let the water drain out of the pot after watering to prevent the roots from sitting in standing water.
Fertilization
Bulbophyllum melleri needs regular feeding during the growing season. Use a balanced orchid fertilizer diluted to half strength every two weeks. In the winter, reduce fertilizer application to once a month. Be sure not to over-fertilize as it can damage the plant's delicate roots.
Pruning
Bulbophyllum melleri typically does not require pruning. However, as the plant ages, it may lose some of its lower leaves. These can be removed by cutting them off at the base of the stem. If the plant becomes too large for its pot, you can divide the rhizome and repot it into a larger container.
Propagation of Bulbophyllum melleri (Hook.f.) Rchb.f.
Bulbophyllum melleri is a unique orchid species that grows in clusters. It is native to the warm climates of Madagascar and prefers growing in tropical forests. The plant produces pseudobulbs that are between 1-3 cm in diameter, with a single, oblong leaf per pseudobulb.
Propagation Methods
Bulbophyllum melleri can be propagated through various methods such as division, back bulbs, and keiki production.
Division
Division is a common method of propagating orchids and is usually done during re-potting. The process involves separating the plant into two or more pieces, each having at least one healthy pseudobulb. The plant divisions can then be potted and kept in similar conditions to the mother plant.
Back bulbs
Bulbophyllum melleri can also be propagated using back bulbs that are produced by the plant. Back bulbs are matured, dormant bulbs that are located at the back of the plant. They can be removed from the mother plant and used for propagation. The bulbs need to be kept in a separate pot until new growth appears.
Keiki Production
Keiki production is a unique method of propagation where a new plant is produced from the mother plant. A keiki is produced when a small plantlet grows from the base of the pseudobulb. The keiki can be separated from the mother plant once it has grown roots of its own. The new plant can then be potted and cared for individually.
Propagation of Bulbophyllum melleri can be done through various methods, each having its own advantages and disadvantages. It is important to maintain proper care of the plants to ensure successful propagation and healthy growth of the new plants.
Disease and Pest Management for Bulbophyllum melleri
Bulbophyllum melleri plants are generally healthy and relatively easy to care for. However, like all plants, they can be susceptible to certain diseases and pests. Here are some common issues Bulbophyllum melleri plants may face and ways to manage them:
Diseases
Crown rot: Crown rot is caused by a fungal infection and can be identified by soft, brown spots on the base of the plant. To prevent crown rot, make sure to avoid over-watering and provide good air circulation. If crown rot is detected, remove any affected leaves or roots and apply a fungicide.
Leaf spot: Leaf spot is another fungal infection that causes small, round spots on the leaves. This can be prevented by keeping the plant dry and avoiding overhead watering. Remove any affected leaves and apply a fungicide to prevent further spread.
Virus: Viruses are easily spread between plants and are not curable. If a plant is infected, it should be removed and destroyed to prevent spreading to other plants.
Pests
Scale insects: Scale insects are small, flat insects that attach to leaves and stems and suck sap from the plant. They can be removed by hand or treated with an insecticide.
Mealybugs: Mealybugs are white, cotton-like pests that also suck sap from the plant. They can be removed by hand or treated with an insecticide.
Spider mites: Spider mites are very small and difficult to see, but can be identified by the webbing they produce on the leaves. They can be removed with a strong blast of water or treated with an insecticide.
Regular inspection of your Bulbophyllum melleri plants can help prevent and manage any potential diseases or pests. Proper care, including adequate watering and good air circulation, can also help maintain plant health.
