Overview
Aerangis pachyura auct. is a species of flowering plant that belongs to the family Orchidaceae. This plant is native to the eastern parts of Africa and is often found growing in the montane forests. One of its most distinctive features is its long, thin petals that extend outward from the flower.
Common Names
The plant is commonly known by different names depending on the region. In Tanzania, it is known as Mtende Mwitu while in Kenya it is called Tunguli or Msoni. Some other common names include Thick-tailed Aerangis and Hirsute Aerangis.
Appearance
Aerangis pachyura auct. is a small epiphytic orchid that rarely exceeds 15 cm in height. It usually has a basal rosette of one to two leaves that are thick, flattened, and elongated. The flowers of this plant are small, white with long, thin petals that extend outwards reminiscent of tentacles. The petals and sepals are covered with fine hairs, which give them a slightly furry texture.
Uses
Aerangis pachyura auct. is often used as a decorative plant due to the beauty of its flowers. However, it is not commonly used for medicinal or culinary purposes. Instead, it is usually found in botanical gardens or as part of private orchid collections.
Light Requirements
Aerangis pachyura is an epiphytic plant that thrives well in bright indirect sunlight. It requires about 50-70% sunlight, but this exposure should be filtered through a sheer curtain or placed behind a window with a light, airy shade. At the same time, it must be protected from direct sunlight, which can burn its leaves.
Temperature Requirements
This plant prefers warm temperatures between 70-85°F (21-29°C) during the day and 60-65°F (16-18°C) at night. It shouldn't be exposed to temperatures lower than 50°F (10°C) as it can induce dormancy or death. If temperatures rise beyond 90°F (32°C), it's best to provide ample humidity as it can trigger dehydration. For optimal growth, keep the temperatures consistent, and avoid sudden fluctuations by keeping the plant away from drafty areas like windows, doors, or air conditioning vents.
Soil Requirements
The Aerangis pachyura plant is an epiphyte, which means it does not require soil to grow. Instead, it should be grown in a well-draining growing mix or bark chips. A suitable substrate mix for Aerangis pachyura should consist of medium-sized bark, some perlite or charcoal, and sphagnum moss. The mix should provide excellent aeration while allowing the plant's roots to absorb moisture and nutrients. The plant should be watered regularly with distilled water, and the substrate should never be allowed to dry out or become waterlogged.
Cultivation of Aerangis pachyura
Aerangis pachyura, also known as the White Orchid, is an epiphytic orchid that is found in the tropical regions of Africa. To cultivate this plant, you need to provide it with the right conditions that mimic its natural habitat.
Watering Needs
Watering this plant can be a bit tricky as it is sensitive to both under and overwatering. Overwatering can lead to root rot, so it's essential to ensure the potting mix is well-draining. During the growing season, water this plant once a week and reduce the frequency during the dormant season. Always ensure that the potting mix has dried out before the next watering.
Fertilization
The White Orchid requires regular feeding. Use a balanced fertilizer with a nitrogen, phosphorous, and potassium ratio of 20:20:20. Dilute the fertilizer to half strength and feed the plant once a month during the growing season. Always ensure that the plant is watered before adding any fertilizer.
Pruning
Pruning is an essential part of caring for this plant as it helps to promote healthy growth and shape. Trim yellow or dead leaves to prevent them from spreading any diseases to the plant. After the flowering season, trim back the flower spikes to encourage the growth of new ones. Always ensure that you sanitize your pruning tools before and after use to prevent the spread of diseases.
Propagation of Aerangis pachyura auct.
Aerangis pachyura auct. is an orchid species that can be propagated through various methods:
Division
Division is a common propagation method for Aerangis pachyura auct. and is best done when the plant has outgrown its container. Carefully remove the plant from its container and separate it into smaller sections, ensuring that each section has at least one pseudobulb and a good root system. Transplant the sections into appropriate containers containing orchid mix and water thoroughly.
Keiki paste
Keiki paste is a hormone-rich paste used to encourage the growth of keikis, which are miniature clones of the parent plant. Apply the paste to a node on the stem of the parent plant using a small brush or cotton swab. After a few weeks, a new plantlet should start to grow at the node. Once the keiki has developed roots, it can be carefully removed from the parent plant and transplanted into an appropriate container containing orchid mix.
Seed propagation
Seed propagation is the most challenging and time-consuming method for propagating Aerangis pachyura auct. Collect mature seed capsules and sow them on a sterilized agar medium or in flasks containing a sterile nutrient solution. Keep the medium or solution in a well-lit and temperature-controlled environment. When the seedlings are big enough, they can be transplanted into an appropriate container containing orchid mix.
Propagation of Aerangis pachyura auct. can take time and patience, but the rewards of successfully propagating this remarkable orchid species are well worth the effort.
Disease and Pest Management for Aerangis pachyura
Aerangis pachyura is a popular species in the Orchidaceae family known for its fragrant, white flowers. To keep the plant healthy, it is important to take adequate measures to control pests and diseases that can damage or kill the plant.
Common Diseases
Aerangis pachyura is susceptible to various diseases, including:
- Bacterial Leaf Spot: This disease is characterized by water-soaked spots, which will eventually turn brown and cause the leaves to wilt. It can be treated using a copper-based fungicide solution.
- Fungal Leaf Spots: These appear as dark or light brown circular spots on the leaves. They can be treated by removing the affected leaves and spraying the plant with a copper-based fungicide solution.
- Root Rot: This is caused by overwatering or by the use of poorly drained soil. Symptoms include discolored and mushy roots, and the plant may wilt or die. To prevent root rot, ensure that the plant is not overwatered, and always use well-drained soil.
Common Pests
Aerangis pachyura is also susceptible to different pests, including:
- Scale Insects: These insects appear as small, flattened, brown, or white bumps on the leaves. They can be removed by using a cotton swab dipped in rubbing alcohol or by spraying the plant with insecticidal soap.
- Aphids: These small insects are often found on the underside of leaves, and can cause distortion and yellowing of the leaves. They can be treated by washing the leaves with a mild soap solution or by using an insecticidal soap.
- Spider Mites: These small arachnids can cause damage by sucking sap from the leaves, causing them to yellow and fall off. They can be treated by spraying the plant with a strong jet of water or by using an insecticidal soap.
Regular inspections of the plant is recommended to detect and address pest and disease problems early. Immediate action can help prevent the spread of pests and may help to control diseases. Natural remedies, such as neem oil or a mixture of water and dish soap, can also be used to control pests.
