Origin
Englerina triplinervia, also known as the triple-nerved Englerina, is a species of flowering plant that belongs to the family Fabaceae. The plant is native to tropical Africa, specifically central and eastern Africa.
Common names
The plant is commonly known as Englerina triplinervia, triple-nerved Englerina, and Mount Kenya pencil-cedar.
Uses
The Englerina triplinervia is used for various medicinal purposes in Africa. The leaves are used to treat malaria, chest infections, and diarrhea. The bark of the tree is used to treat wounds and as a laxative. Additionally, the wood of the tree is used for construction purposes such as making furniture, doors, and window frames.
General appearance
The Englerina triplinervia is a small to medium-sized tree that can grow up to 10 meters tall. It has slender branches and a straight trunk with a characteristic pencil shape. The leaves are dark green in color, oblong or narrowly elliptic with an acuminate apex. The flower heads are orange-yellow in color and bloom between July and August. The tree produces small, black seeds that are enclosed in long, narrow, brown pods. The bark of the tree is smooth and brown in color.
Overall, the Englerina triplinervia has a distinctive appearance with unique, triple-nerved leaves and a slender, pencil-shaped trunk which makes it an attractive addition to any garden.
Light Requirements
Englerina triplinervia thrives well in moderate light conditions. It grows best when exposed to partial sunlight for at least four hours a day. Too much shade can lead to stunted growth, while exposure to intense sunlight can cause sunburn and damage the leaves.
Temperature requirements
The ideal temperature range for Englerina triplinervia is between 18°C to 25°C. It is a tropical plant and cannot withstand frost. During the winter season, indoor cultivation is recommended to provide a constant temperature within the preferred range. Extreme temperatures can lead to slow growth rates or total plant death.
Soil requirements
The plant requires well-draining soil with a pH range between 6.0 to 7.5. The soil should be a blend of loamy soil, sand, and organic matter. It is essential to ensure proper drainage to prevent waterlogging, leading to root rot. A well-draining mixture will help prevent stagnant water from accumulating in the soil and keeping the roots moist. Englerina triplinervia can also thrive in fertile humus-rich soils.
Cultivation
Englerina triplinervia is a drought-tolerant plant and can grow in a variety of soils, including sandy and rocky soils. However, it prefers well-draining soils with a slightly acidic to neutral pH range. The plant thrives in full sun to partial shade, making it an ideal plant for gardens, rockeries, and containers.
Watering Needs
As a drought-tolerant plant, Englerina triplinervia requires minimal watering. Water the plant deeply once a week during the growing season. During the winter months, reduce watering to once every two weeks or when the soil is completely dry. The plant can survive long periods of drought but will benefit from occasional deep watering during heatwaves to keep it healthy.
Fertilization
Englerina triplinervia is not a heavy feeder and can grow well with minimal soil nutrients. It will benefit from an annual application of slow-release fertilizer in early spring. Alternatively, you can apply a balanced liquid fertilizer monthly during the growing season. However, be careful not to overfertilize, as it can damage the plant.
Pruning
Prune Englerina triplinervia in late winter or early spring to promote a bushy and compact growth habit. Use sterilized pruning shears to cut back any dead or diseased branches. You can also trim the plant to maintain its desired shape and size. However, be careful not to prune more than one-third of the plant's foliage, as it can affect its growth and overall health.
Propagation of Englerina triplinervia
Englerina triplinervia is commonly known as the Three-Nerve Englerina. It is a perennial plant that produces showy flowers and that is native to South Africa. Propagating Englerina triplinervia can be done through several methods, as outlined below:
Seed Propagation
The seeds of Englerina triplinervia can be collected from the plant's capsules after they have turned brown. The seeds should then be planted in well-drained soil and covered lightly with sand. Keep the soil moist and in a warm, shaded area until the seeds germinate, which typically takes several weeks. Once the seedlings have developed, they can be transplanted to their permanent location.
Division
Another method of propagating Englerina triplinervia involves dividing the plant's roots. This method is typically performed in the spring when the plant is just starting to emerge from dormancy. Carefully dig up the plant, being sure to keep the roots intact. Gently separate the plant into several clumps, making sure that each clump has a healthy root system. Replant each clump in a suitable planting location and water well.
Cuttings
Englerina triplinervia can also be propagated through stem cuttings. This method is best performed during the late spring or early summer when the plant is actively growing. Select a healthy stem and cut a section that is 4-6 inches long, making sure that there are several leaves on the stem. Remove the leaves from the bottom half of the stem and then dip the cut end in rooting hormone. Plant the cutting in well-drained soil and water thoroughly. Keep the cutting in a warm, shaded area until roots have developed, which typically takes several weeks. Once the roots have established, the new plant can be transplanted to a suitable location.
Disease and Pest Management for Englerina triplinervia (Baker & Sprague) Polhill & Wiens
Englerina triplinervia (Baker & Sprague) Polhill & Wiens is a small shrub that usually grows in rocky areas. Like any other plant, it is also susceptible to diseases and pests. Here are some common diseases and pests that might affect the plant, along with ways to manage them:
Diseases
Leaf spot: This is a common fungal disease that affects the leaves of Englerina triplinervia. It causes circular or irregular spots on the leaves, which can be small or large. To manage this disease, remove the infected leaves and destroy them. Avoid overhead watering and provide good air circulation around the plant. Use a fungicide if necessary.
Root rot: This disease is caused by several fungi and can affect the roots of Englerina triplinervia, leading to stunted growth and wilting. To manage this disease, avoid overwatering and provide good drainage. Use a fungicide if necessary.
Pests
Mealybugs: These small, white insects feed on the sap of Englerina triplinervia, weakening the plant and causing yellowing and wilting. To manage these pests, remove them manually with a cotton swab dipped in alcohol. Use insecticidal soap or neem oil if necessary.
Aphids: These small, soft-bodied insects also feed on the sap of Englerina triplinervia, causing stunted growth and deformation. To manage these pests, spray the plant with a strong jet of water to dislodge them. Use insecticidal soap or neem oil if necessary.
Spider mites: These tiny pests can cause yellowing and wilting of the leaves of Englerina triplinervia by sucking the sap from them. To manage these pests, increase humidity around the plant by misting it regularly. Use insecticidal soap or neem oil if necessary.
By following these disease and pest management techniques, you can ensure that your Englerina triplinervia plant remains healthy and free of diseases and pests.
