Origin
Pseudoperistylus bequaertii (Summerh.) Szlach. & Olszewski is a rare, epiphytic orchid species belonging to the family Orchidaceae. It can be found in Central Africa, particularly in Cameroon, Gabon, and Congo. The species was first recorded by Georges Lemaire in 1912 and later described by Summerhayes in 1937 as Eulophia bequaertii. It was then transferred to the Pseudoperistylus genus by Szlach. & Olszewski in 2001.
Common Names
This orchid species has a few common names such as Bequaert's pseudoperistylus, Bequaert's orchid, and the African epiphyte. These names are often used to refer to the orchid species because of its rareness and origin in Central Africa.
Uses
Pseudoperistylus bequaertii is highly valued for its aesthetic value, especially for ornamental purposes. Due to its rarity, the plant is relatively new to horticulture, and it is currently being propagated by orchid enthusiasts and collectors worldwide.
General Appearance
Pseudoperistylus bequaertii has an erect stem that can grow up to a height of 45cm. The plant produces several fleshy, oblong leaves that grow alternately along the stem. The leaves can grow up to 25cm long and 4cm wide. The inflorescence of Pseudoperistylus bequaertii can be up to 40cm long and produces several greenish-yellow flowers with a cylindrical shape. Each flower can be up to 5mm long and 3mm wide, and the flowers are usually arranged in a dense, cylindrical spike. The lip of the orchid is trilobed, with the two side lobes being upright, and the median lobe forming a hood over the column.
Light Requirement:
The plant Pseudoperistylus bequaertii requires moderate to bright indirect sunlight for proper growth. Avoid keeping the plant in direct sunlight, which might scorch its leaves. A shady and humid location with filtered sunlight is best suited for this plant.
Temperature Requirement:
The plant Pseudoperistylus bequaertii thrives in a warm and humid environment. A temperature range between 18°C to 25°C is ideal for healthy growth. Do not expose the plant to sudden temperature fluctuations or cold drafts.
Soil Requirement:
The soil mixture used for Pseudoperistylus bequaertii should be well-draining and rich in organic matter. A mixture of peat moss, perlite, sphagnum moss, and bark works best for this plant. Maintain the soil's pH level between 5.0 to 6.5 for optimal growth.
Cultivation of Pseudoperistylus bequaertii
Pseudoperistylus bequaertii plants are native to tropical African forests. They grow well in humid conditions, making them suitable for indoor cultivation in areas with dry climates. These plants prefer to grow in well-draining soil that is rich in organic matter.
When planting Pseudoperistylus bequaertii, ensure that the soil is evenly moist. Overwatering can lead to rot, while underwatering can cause the plant to wither. These plants prefer to be grown in pots, as this allows for better control of moisture levels.
Watering needs
Watering Pseudoperistylus bequaertii plants can be tricky. These plants prefer to grow in moist soil but can suffer if the soil is waterlogged. Water the plant when the top inch of the soil feels dry to the touch. During the summer months, you may need to water more often depending on the humidity levels in your location.
Fertilization
Sufficient fertilization is essential for Pseudoperistylus bequaertii plants to thrive. Fertilize the plant once every four to six weeks during the growing season using a balanced fertilizer. Reduce fertilization during the winter months when the plant is in a state of dormancy and requires less food.
Pruning
Pseudoperistylus bequaertii plants do not require extensive pruning. However, you can remove the spent flowers after they wilt to improve the plant's overall appearance. You may also trim the plant to control its size and shape. When pruning, ensure that you use sterile tools to prevent the spread of disease between plants.
Propagation Methods of Pseudoperistylus bequaertii
Pseudoperistylus bequaertii, also known as Bequaert's pseudoperistylus, is an orchid that is native to Africa. It can grow up to one meter tall, with stems that are erect or arching. The leaves are broad, leathery, and dark green. The plant produces beautiful flowers that are greenish-yellow and are arranged in a dense, spiked inflorescence. Propagation of this plant can be done through the following methods:
Division
Division is the most common propagation method of Pseudoperistylus bequaertii. This method involves dividing the plant into smaller pieces, each with a portion of the stem and roots. Make sure that each division has at least one healthy growth point and several roots. The divided plantlets are then potted individually in small pots with well-draining media, such as sphagnum moss, bark, or perlite. Keep the plants in a warm, humid, and bright place until new growth is seen.
Seed Propagation
Seed propagation is also possible but it is a more challenging method compared to division. The seeds of Pseudoperistylus bequaertii are very tiny, almost like dust particles, and they require specific conditions to germinate. Collect mature seed pods from the plant and allow them to dry completely. Sow the seeds on a surface of moist sphagnum moss or perlite in a small container. Cover the container with plastic wrap and keep it under bright, indirect light. The seeds should germinate within a few weeks to several months. Once the seedlings are large enough, they can be potted in individual containers as previously mentioned.
Hybridization
Hybridization is another propagation method that is typically done by experts and experienced growers. This method involves cross-breeding two different species of orchids to produce a hybrid. The resulting plant can have desirable traits such as larger flowers, brighter colors, or more vigorous growth. This method requires meticulous planning and execution, as the right species must be chosen and the pollination process must be done carefully. The seeds produced by hybridization can be sown and cared for in the same way as the seeds produced by the normal method.
Disease Management
One of the most common diseases that can affect Pseudoperistylus bequaertii is root rot. This disease is caused by overwatering, poor drainage, or soil-borne fungal pathogens such as Pythium and Phytophthora. To manage root rot, it is essential to maintain proper soil drainage and avoid overwatering. Using well-draining soil and pots with drainage holes can also help prevent this disease. Fungicides can be used in severe cases of root rot, but it is best to prevent the disease from occurring in the first place.
Pseudoperistylus bequaertii can also be affected by leaf blight, a fungal disease that causes brown or gray spots on the leaves. This disease can be caused by a number of fungal pathogens, including Botrytis cinerea and Alternaria. To manage leaf blight, it is important to remove infected plant material, maintain good air circulation around the plants, and avoid overhead watering.
Pest Management
There are several common pests that can affect Pseudoperistylus bequaertii, including mealybugs, spider mites, and thrips. Mealybugs are small, white insects that feed on the sap of the plant and can cause stunted growth and yellowing leaves. To manage mealybugs, it is important to inspect new plants for signs of infestation and to use insecticidal soap or neem oil to control the pests. Spider mites are another common pest that can cause yellowing and stunted growth. These pests are often found on the undersides of leaves and can be controlled with a strong blast of water or by using a miticide. Finally, thrips are tiny insects that feed on the leaves, causing distortion and discoloration. These pests can be controlled with insecticidal soap or neem oil.
