Overview of Deverra aphylla (Cham. & Schltdl.) DC. var. burchellii DC.
Deverra aphylla (Cham. & Schltdl.) DC. var. burchellii DC. is a hardy and drought-resistant plant that belongs to the Apiaceae family. It is also known as Burchell's deverra and is native to southern Africa, specifically in Angola, Namibia, Botswana, and South Africa.
General Appearance
The plant is a small shrub that grows up to 0.3 meters tall. It has distinct, thin and wispy leaves that are divided into three leaflets, with each leaflet having needle-like segments. The flowers of the plant form in small clusters of white, and the fruits are small and oval with a reddish-brown color.
Common Uses
The indigenous San people of southern Africa have used Deverra aphylla var. burchellii DC. for centuries for medicinal purposes, particularly to treat snake bites and scorpion stings. Traditionally, the leaves were crushed and applied to the affected area to relieve pain and swelling. The plant's roots were also used as a natural remedy for coughs and colds.
Today, the plant is used in modern herbal medicine as a natural insecticide, pesticide, and repellent. It contains compounds that effectively deter insects and pests, making it a popular natural alternative to harsh chemical products. Deverra aphylla var. burchellii DC. is also cultivated as an ornamental plant and can be used to landscape dry gardens and rockeries.
Conclusion
In summary, Deverra aphylla (Cham. & Schltdl.) DC. var. burchellii DC. is an important plant in southern Africa, valued for both its medicinal and insect-repelling properties. With its unique appearance and drought resistance, it is a valuable addition to any garden, and its history and uses make it a fascinating plant to learn about.
Light Requirements
Deverra aphylla var. burchellii requires full sun exposure to grow healthily and produce flowers and fruits. It can tolerate some partial shade during the hottest parts of the day, but prolonged shade can damage the plant's growth.
Temperature Requirements
This plant thrives in warm and hot temperatures. It can tolerate extreme heat up to 45°C during the day and above 12°C at night. However, it cannot withstand frost or freezing temperatures. Therefore, it is best grown in warm climates or greenhouses in colder regions.
Soil Requirements
Deverra aphylla var. burchellii is adaptable to different soil types but prefers well-draining sandy or loamy soils. It can grow in slightly acidic to slightly alkaline soil pH levels ranging from 6.0 to 8.0. The soil should also be rich in organic matter to ensure healthy growth and development.
Cultivation Methods
Deverra aphylla (Cham. & Schltdl.) DC. var. burchellii DC. is a low-maintenance plant that can thrive both in full sun and partial shade. It prefers well-drained soil and can tolerate a range of soil types, including sandy and alkaline soils. You can propagate the plant from seeds or cuttings.
Watering Needs
The plant has moderate water requirements. Water it thoroughly once a week during the growing season, and reduce watering to once every two to three weeks during the dormancy period. Be careful not to overwater, as the plant is susceptible to root rot.
Fertilization
Organic fertilizers are best for Deverra aphylla (Cham. & Schltdl.) DC. var. burchellii DC. Fertilize the plant once a month during the growing season with a balanced fertilizer. Avoid fertilizing during the dormancy period.
Pruning
Pruning is not necessary for Deverra aphylla (Cham. & Schltdl.) DC. var. burchellii DC., but it can be done to shape the plant or to remove any dead or diseased foliage. Prune the plant after the blooming period, and be careful not to remove more than one-third of the foliage.
Propagation of Deverra aphylla var. burchellii
Deverra aphylla var. burchellii is a hardy plant that grows well in sandy or rocky soils. It is commonly propagated through seeds and stem cuttings.
Propagation through Seeds
Propagation through seeds is the most common method for Deverra aphylla var. burchellii. The seeds are collected from the plant after they have ripened and turned brown. The seeds are then planted in well-draining soil and covered lightly. It is important to keep the soil moist but not overly wet to prevent the seeds from rotting. Germination usually takes place within 2-4 weeks.
Propagation through Stem Cuttings
Propagation through stem cuttings is also possible for Deverra aphylla var. burchellii. Cuttings should be taken from the plant in the early morning when the plant is turgid. The cuttings should be about 10 cm in length and taken from the upper part of the stem. The leaves on the lower two-thirds of the cutting should be removed, and the cutting should then be planted in well-draining soil. The soil should be kept moist until the cutting has rooted, which can take 2-4 weeks.
Once roots have formed, the cutting can be transplanted to a new location. It is important to water the plant regularly but not over-water it. Over-watering can lead to root rot, which can be fatal to the plant.
Disease management
Deverra aphylla var. burchellii DC. is a hardy plant that is less prone to diseases. However, it can sometimes fall prey to fungal and bacterial infections.
One of the common fungal diseases that affect the plant is powdery mildew. The disease is characterised by powdery patches on the leaves and stems. To control the disease, remove the infected parts immediately and apply a fungicide according to the manufacturer's instructions.
Bacterial wilt is another disease that affects the plant. This disease causes the leaves to wilt, turn yellow and eventually die. To control bacterial wilt, practice crop rotation and avoid planting the plant in the same spot annually. Also, ensure proper sanitation and remove any infected plant matter and dispose of them away from the plant.
Pest management
Deverra aphylla var. burchellii DC. is also prone to some pests that can cause damage to the plant.
The most common pests are spider mites and mealybugs. Spider mites suck sap from the plant, resulting in yellowing of leaves and wilting of the plant. Mealybugs, on the other hand, secrete a sticky substance that attracts ants and encourages fungal growth on the plant. To control these pests, regularly inspect the plant for infestations and apply an insecticide according to the manufacturer's instructions.
In addition, caterpillars and leafminers can cause damage to the plant. Caterpillars feed on the leaves, while leafminers create tunnels within the leaves. To control these pests, remove any infected parts of the plant and apply an insecticide if necessary.
It is essential to regularly monitor and inspect the plant to catch and control any pests and diseases early. Practicing good sanitation, proper watering, and fertilisation can also help prevent the plant from becoming stressed, making it less susceptible to pests and diseases.
