Convolvulus cymosus Desr.
Convolvulus cymosus Desr., also commonly known as bindweed or night-blooming morning glory, is a species of flowering plant in the Convolvulaceae family. It is native to tropical regions of Asia and Africa but has been naturalized in many parts of the world.
General Appearance
The plant has a woody, twining stem that can grow up to 2 meters long. The leaves are simple and alternate, with a shape that varies from ovate to cordate. The flowers are funnel-shaped and can range in color from white to pink or purple. They are individually small, but can form clusters that are quite showy. The plant blooms at night from summer to early autumn.
Uses
Convolvulus cymosus Desr. has both medicinal and horticultural uses. In traditional medicine, the plant is used to treat illnesses such as fever, headache, and arthritis. The leaves and seeds of the plant are also used as a laxative. In horticulture, it is often grown for its attractive flowers and the twining habit - it can make a great addition to gardens, fences, and trellises.
However, it should be noted that the species is considered an invasive weed in many parts of the world, due to its aggressive growth and ability to outcompete native plants. Its root system is extensive, and it has been known to damage crops and infrastructure. Therefore, caution should be taken when planting Convolvulus cymosus Desr. in gardens, and its spread should be monitored closely.
Light Requirements
The Convolvulus cymosus Desr. plant requires full sun or partial shade for optimal growth. This plant can tolerate some shade, especially during the hottest parts of the day. However, it is best suited to areas that receive at least 6 hours of direct sunlight per day.
Temperature Requirements
The Convolvulus cymosus Desr. plant prefers warm temperatures between 20-30°C (68-86°F). Temperatures above 35°C (95°F) can cause stress and damage to the plant. This plant is not frost-tolerant and requires protection during the colder months.
Soil Requirements
The Convolvulus cymosus Desr. plant prefers well-draining, fertile soils with a pH between 6.0-7.5. This plant can grow in a range of soil types, including sandy loam, clay loam, and loamy soil. However, it does not tolerate waterlogged conditions and requires good drainage to prevent root rot.
Cultivation Methods
Convolvulus cymosus Desr. is a fairly easy plant to cultivate, and it grows well in most garden soil types that are well-draining. When planting, it is best to sow seeds directly into the soil during late spring or early summer. Ensure that the seeds are sowed at a depth of around 6mm.
You can also propagate Convolvulus cymosus Desr. by taking cuttings during summer. Rooting hormones can be used to improve rooting success. When planting, it is wise to give each plant enough space, typically at least 30cm apart, to allow for proper growth.
Watering Needs
Convolvulus cymosus Desr. prefers moderate watering, and over-watering should be avoided as it can lead to root rot. The plant requires consistent moisture, particularly during summer, but it should not be soaked. It’s important to make sure that water drains properly from the soil.
Fertilization
It’s vital to fertilize Convolvulus cymosus Desr. twice in the growing season. Using a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium will help sustain the plant’s growth and produce healthy foliage and flowers. The first application should be done during spring, while the second application can be done in mid-summer.
Pruning
Deadheading the flowers and seeds is beneficial in prolonging the blooming period of Convolvulus cymosus Desr. It also encourages the plant to grow fuller and bushier. Prune away yellowing or diseased leaves and stems as they appear. Shearing the plant back in late summer or early fall can also stimulate a last flush of growth before winter sets in.
Propagation of Convolvulus cymosus Desr.
Convolvulus cymosus Desr. is commonly known as morning glory or shankhapushpi. It is a herbaceous vine belonging to the Convolvulaceae family. This plant is propagated through both vegetative and seed propagation methods.
Propagation by seeds
Seeds are the most common type of propagation for Convolvulus cymosus. The seedlings can be grown directly in the field or in the nursery. The seeds should be sown after the last frost in the spring in well-drained soil. A depth of 1/4 inch should be maintained while sowing the seeds. The soil should be kept evenly moist, and the germination period usually takes around 7-10 days. After germination, water the plants regularly.
Propagation by stem cuttings
Propagation by stem cuttings is another common method for plants with woody or semi-woody stems, including Convolvulus cymosus. Stem cutting propagation is done during the active growing season and is the best way to create a root system for new plants. Cuttings should have at least two nodes, and leaves should be removed from the bottom half of the stem. Place the cuttings in a rooting hormone and place in a well-aerated medium. Ensure that the medium is well-drained and moist.
Vegetative propagation
Vegetative propagation involves growing new plants from existing parts of the parent plant. Convolvulus cymosus generally uses stem cuttings for vegetative propagation.
Conclusion:
Convolvulus cymosus Desr. can be propagated through both seed and vegetative methods. Seed propagation can be done directly in the field or in the nursery, while stem cuttings and vegetative propagation can be done during the active growth period.
Disease Management
Common diseases that might affect Convolvulus cymosus Desr. include fungal infections such as powdery mildew, leaf spot, and root rot. To manage these diseases, it is important to keep the plant dry by watering it at the base and not on the leaves. Remove and destroy any infected plant parts, and avoid overcrowding of plants to prevent moisture buildup. It is also helpful to improve air circulation around the plant by pruning and spacing them appropriately. Fungicides can also be used, but it is important to choose one that is labelled for use on the plant and follow the instructions carefully.
Pest Management
Common pests that might affect Convolvulus cymosus Desr. include aphids, spider mites, and whiteflies. To manage these pests, it is important to keep the plant healthy and stress-free by providing adequate water, nutrients, and sunlight. Natural predators such as ladybugs and lacewings can be introduced to control these pests. Non-chemical measures such as manual removal of pests and spraying the plant with a strong jet of water can also be effective. In severe cases, insecticidal soaps or oils can be used, but it is important to test on a small area first and follow the instructions carefully.
