General Appearance
Dolicholus venulosus Hiern, commonly known as the "Sausage Tree" or "Kigelia africana" is an unusual tree that stands out because of its unique fruits. It is native to Africa and can be found in the savannahs, woodlands, and riverine areas of Central, Southern, and West Africa. Sausage Tree can grow up to 66 feet tall and has a round-shaped canopy of leaves that provide shade under the sun. The bark of the tree is grey-brown and has wrinkles with leaves that are dark green, glossy, and oval-shaped. Dolicholus venulosus Hiern can bloom year-round, but are mainly seen from May to September, with crimson flowers that are bell-shaped and hang down from the branches to the ground.
Uses
The fruit of the Dolicholus venulosus Hiern is the most interesting and the reason for its common name "sausage tree." The fruit is eight to ten inches long, hanging elongated fruit that resembles a sausage have a hard shell. The fruit has been used for medicinal properties by the indigenous tribe of Africa for treating skin cancer, rheumatism, snake bites, and syphilis. The fruit when unripe is not edible, but when ripe and dehydrated can be turned into a powder which is used to make Kigelia tea. The powdered fruit can also be added to lotions and soaps, as it is believed to have anti-inflammatory properties and can be used for skin care. The fruit of the Kigelia africana is also used as a flavoring agent in some drinks and sausages.the wood of the tree is widely used in Africa for furniture making, dugout canoes, and carvings. The wood is dark brown, hard, and durable, resistant to pests and decay.
Light Requirements
Dolicholus venulosus Hiern requires bright, indirect light for optimal growth. They can tolerate some direct sun, but too much exposure can cause leaf burn. It is best to place the plant near a window that receives filtered light or under a shaded area outdoors.
Temperature Requirements
The ideal temperature range for Dolicholus venulosus Hiern is between 65°F to 75°F (18°C to 24°C). They can tolerate temperatures as low as 50°F (10°C) but should not be exposed to temperatures below 45°F (7°C) for an extended period. High temperatures above 85°F (29°C) can cause damage to the leaves and slow growth.
Soil Requirements
Dolicholus venulosus Hiern prefers a well-draining soil mixture that is high in organic matter. A combination of peat moss, compost, and perlite provides a suitable growing medium. The pH of the soil should be neutral to slightly acidic, ideally between 6.0 to 7.0. The plant roots should not be sitting in standing water, so it is important to ensure proper drainage.
Guidance on Cultivation of Dolicholus venulosus Hiern
Dolicholus venulosus Hiern is a species of plant that belongs to the Fabaceae family. Proper cultivation methods are essential for healthy growth and better yields. Here's a quick guide to cultivating Dolicholus venulosus Hiern:
Soil Requirements
The plant prefers well-drained, loamy, and sandy soils for proper growth. Clayey soils with poor drainage should be avoided as they can cause root rot. Additionally, the soil pH should be slightly acidic to neutral, ranging between 5.5 to 7.5.
Planting and Watering Needs
Dolicholus venulosus Hiern is propagated by seeds. Plant the seeds in well-prepared soil at a depth of 1 cm. The plant requires moderate watering during the growing season. Water the plant deeply once a week, especially during hot and dry weather. Avoid overwatering the plant as it can cause root rot and other fungal diseases.
Fertilization
Apply organic fertilizers or compost to the soil around the plant at the beginning of the growing season to provide nutrition. Additionally, applying a balanced NPK fertilizer (10-10-10) once every two months can stimulate healthy growth and yield. However, avoid overfertilization as it can cause excessive vegetative growth and may reduce fruit production.
Pruning
Pruning the plant should be done during the dormant season. Cut back the old and weak branches and remove any dead or diseased wood. Branches that cross one another should also be removed to allow more light and air circulation. Additionally, removing spent flowers can stimulate fresh blooming and fruiting.
With proper cultivation methods and care, Dolicholus venulosus Hiern can thrive and offer excellent yields of fresh produce.
Propagation of Dolicholus venulosus Hiern
Dolicholus venulosus Hiern, commonly known as the velvet bean, is a species of plant that belongs to the family Fabaceae. Propagation of Dolicholus venulosus Hiern can be accomplished through various methods:
Seed propagation
The most common method of propagating Dolicholus venulosus Hiern is through seed propagation. Seeds should be sown in a well-draining soil mix rich in organic matter. It is recommended to soak the seeds in water for a few hours before sowing to aid in germination. The seeds should be sown at a depth of 2-3 cm and watered regularly.
Cuttings propagation
Propagation of Dolicholus venulosus Hiern can also be done through stem cuttings. Select a healthy stem and cut a 40-50 cm long section. Remove any leaves on the lower half of the stem, leaving only a few at the top. Dip the cut end of the stem into a rooting hormone and plant it into a well-draining soil mix. Keep the soil moist and ensure that the cutting receives bright, indirect light.
Division propagation
Division can also be a suitable propagation method for Dolicholus venulosus Hiern. This method involves dividing the plant into several smaller sections and replanting them. This method is best carried out during the growing season, and it is essential to ensure that each division has enough roots and shoots to sustain growth.
Overall, propagating Dolicholus venulosus Hiern can be done successfully through seed propagation, cuttings propagation, or division propagation. It is crucial to ensure that the soil is well-draining, and the plant receives adequate water and light for successful propagation.
Disease and Pest Management for Dolicholus venulosus Hiern
Dolicholus venulosus Hiern, also known as the African Laburnum, is a beautiful tree native to Africa. It is a deciduous tree that grows up to 30 feet tall. Like all plants, the African Laburnum is susceptible to diseases and pest infestations. Here are some common diseases and pests that might affect the plant and ways to manage them.
Common Diseases
The African Laburnum is prone to root rot, powdery mildew, and leaf spot diseases. Root rot is caused by overwatering and poor soil drainage. Powdery mildew and leaf spot are caused by fungal infections. These diseases can lead to stunted growth, yellowing leaves, and defoliation if not managed immediately.
To manage these diseases, it is crucial to provide good airflow around the tree, water only when necessary, and use well-draining soil mix. Regularly prune dead or diseased branches to prevent further spread. For fungal infections, there are many fungicides available, but it is best to consult a professional for proper treatment.
Common Pests
One of the most destructive pests that affect the African Laburnum is the mealybug. These tiny insects suck sap from the leaves and stems, causing yellowing and eventual leaf drop. Another common pest is the caterpillar, which can eat through many leaves and even defoliate the tree if their numbers are high.
To manage mealybugs and caterpillars, you can use insecticidal soaps or natural predators like ladybugs or lacewings. It's also important to keep the tree healthy by providing proper nutrients and watering.
Conclusion
By being vigilant for signs of disease and pest infestation, you can keep your African Laburnum healthy and beautiful for years to come. Remember to provide good airflow, avoid overwatering, and use proper soil mix. In case of persistent problems, seek professional help.
