Origin
Tephrosia elongata E.Mey. var. glabra Sond. is a species of flowering plants in the pea family Fabaceae. It is native to sub-Saharan Africa and southern parts of Somalia.
Common Names
The plant is commonly known by its English name, the silky tephrosia, or by its Afrikaans name, sywurmbos.
Uses
Tephrosia elongata E.Mey. var. glabra Sond. has a variety of uses in traditional medicine. It is said to have anti-inflammatory, pain-relieving, and anti-tumor properties. The roots and leaves are used to treat a variety of ailments, including dysentery, diarrhea, and respiratory infections.
Additionally, the plant is used to improve soil fertility as it is a nitrogen-fixing plant. It is often planted as a green manure crop and used to prevent soil erosion.
General Appearance
Tephrosia elongata E.Mey. var. glabra Sond. is a perennial plant that grows up to 2 meters tall. It has grayish-green leaves that are long and narrow. The flowers are pink or purple and appear on long, slender stems in dense clusters. The plant has a deep taproot system that enables it to grow in poor soil conditions.
Overall, Tephrosia elongata E.Mey. var. glabra Sond. is an important plant species in Africa with various uses for human and environmental health.
Light Requirements
Tephrosia elongata E.Mey. var. glabra Sond. requires plenty of sunlight to thrive. It is adapted to grow under full sunlight and does not tolerate shade. It is best to plant it in an open area where it can receive direct sunlight throughout the day.
Temperature Requirements
This plant prefers a warm climate and does not tolerate frost. It grows best in areas with a temperature range of 25-35°C. The plant can tolerate a little bit of cold, but prolonged exposure to low temperatures can damage or kill it.
Soil Requirements
Tephrosia elongata E.Mey. var. glabra Sond. prefers well-drained soils that are rich in organic matter. It can grow in a wide range of soils, including loam, sandy loam, and sandy soils. However, the ideal soil pH for this plant is between 6.0 and 7.5. It does not grow well in acidic soils (below pH 5.5).
The plant can tolerate drought to some extent but grows best when there is sufficient moisture in the soil. It is essential to water the plant regularly, especially during dry periods. Overwatering can lead to root rot, so it is crucial to ensure that the soil is well-drained.
Cultivation methods
Tephrosia elongata E.Mey. var. glabra Sond. requires well-drained soil with a neutral pH level ranging between 6 and 7.5. It prefers warm temperatures and a lot of sunlight for optimal growth, so choose a location that receives plenty of sunlight. Since it is a legume, it fixes nitrogen in the soil, which means it can grow in poor soil conditions. The plants can be propagated by planting seeds in the spring after the last frost or through vegetative methods such as stem cutting or layering.
Watering needs
Tephrosia elongata E.Mey. var. glabra Sond. requires moderate watering. Water the plant deeply once a week, but let the soil dry out between waterings. Avoid overwatering, which can cause root rot and other diseases. During hot and dry periods, increase the frequency of watering to prevent the plant from drying out.
Fertilization
Fertilization is essential for the growth and development of Tephrosia elongata E.Mey. var. glabra Sond. Apply a balanced fertilizer, which contains equal amounts of nitrogen, phosphorus, and potassium, during the growing season. Avoid fertilizing during winter or when the plant is dormant. Composting and incorporating organic matter into the soil can also improve soil fertility and provide valuable nutrients.
Pruning
Regular pruning promotes bushier growth and stimulates flower production. Prune Tephrosia elongata E.Mey. var. glabra Sond. after flowering, cutting back overgrown or dead branches. Prune away any damaged or diseased foliage throughout the growing season to prevent the spread of diseases and pests. Cut off flower spikes to prevent the plant from developing seeds, which can reduce its energy reserves and impede its growth.
Propagation of Tephrosia elongata E.Mey. var. glabra Sond.
Tephrosia elongata E.Mey. var. glabra Sond. can be propagated by either seeds or cuttings. Both methods have their advantages and disadvantages, and the choice of propagation method will depend on the resources available, the desired results, and the grower's experience.
Propagation by Seeds
Propagation by seeds is the most common method of growing Tephrosia elongata E.Mey. var. glabra Sond. from scratch. To propagate the plant by seeds, one can follow these steps:
- Collect ripe seeds from healthy plants.
- Clean the seeds by removing any dirt or debris.
- Sow the seeds in a well-draining potting mix. The mix should be slightly moist, but not wet.
- Keep the potting mix evenly moist and the seeds in a warm, well-lit area. Germination should occur in 7 to 14 days.
- Once the seedlings are 2 to 3 inches tall, transplant them into individual pots or a larger container.
- Provide appropriate care and nutrition to encourage healthy growth.
Propagation by Cuttings
Tephrosia elongata E.Mey. var. glabra Sond. can also be propagated by cuttings. This method is preferred by growers who want to propagate the exact genetics of a particular plant. When propagating by cuttings, one can follow these steps:
- Select a healthy stem from the parent plant that is about 4 to 6 inches long.
- Cut the stem just below a leaf node.
- Remove the leaves from the lower half of the stem.
- Dip the cut end of the stem in rooting hormone.
- Insert the stem into a well-draining potting mix. The mix should be moist, but not wet.
- Place the cutting in a warm, well-lit area and keep the soil evenly moist. Roots should develop in 2 to 4 weeks.
- Once the cutting has developed roots and new growth, transplant it into its permanent location.
Disease and Pest Management for Tephrosia elongata E.Mey. var. glabra Sond.
Tephrosia elongata E.Mey. var. glabra Sond., commonly known as the shrubby pea, is a hardy plant that can withstand drought and pests to some extent. However, it is not completely immune to diseases and pests. Some common diseases and pests that might affect the plant are:
Diseases
1. Leaf spot: This is a fungal disease that causes small brown or black spots on the leaves, which may eventually turn yellow and die. The disease spreads rapidly in wet weather.
Management: One should avoid overhead watering and remove the infected leaves. Spraying the plants with copper or sulphur-based fungicides can provide some control.
2. Root rot: This disease is caused by fungi that thrive in wet soil. It can cause the roots to rot, leading to yellowing and wilting of the leaves.
Management: One should avoid overwatering the plant and ensure good soil drainage. Applying a fungicide that contains the active ingredient 'azoxystrobin' to the soil can help control the disease.
Pests
1. Spider mites: These are tiny pests that feed on the undersides of the leaves, causing yellowing and stippling of the leaves.
Management: One can use a forceful jet of water to wash off the pests from the leaves. Spraying the plants with insecticidal soap or neem oil can also help control the infestation.
2. Aphids: Aphids are small, soft-bodied insects that suck the sap from the plant, causing the leaves to curl and distort.
Management: One can use a forceful jet of water or ladybugs to remove the aphids from the plant. Spraying the plant with insecticidal soap or neem oil can also provide some control.
Regular monitoring of the plants and timely management of the diseases and pests can help keep the Tephrosia elongata E.Mey. var. glabra Sond. plant healthy and productive.