Overview
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. is a plant species native to South Africa and belongs to the Convolvulaceae family. The plant is commonly known as Bush dayflower, Arrowleaf bindweed, or Lys Flower. It is a hardy plant that can withstand drought, heat, and withstands moderate frost.
Appearance
The plant has a trailing or climbing habit that can grow up to 20 to 30 cm high. Arrow-shaped leaves with pointed tips characterize the plant's foliage; the leaves are green and succulent-like, measuring approximately 2-3 cm in length. The plant's flowers have a trumpet shape with five white petals that are flushed pink at their bases, and yellow stamens in the center. The plant typically blooms from summer to fall, and its flowers are about 4 cm in diameter.
Uses
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. is a beautiful ornamental plant that is grown mainly for its attractive flowers and foliage. It thrives in gardens, naturalized areas, rockeries, and containers. The plant requires low maintenance and can grow in a wide range of soils and light conditions. It is also known for its medicinal properties; its roots are traditionally used in South Africa to treat conditions such as toothache, anemia, and diarrhea.
Light requirements
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f., commonly known as arrowleaf bindweed, requires full sunlight to grow and thrive. It cannot tolerate shade or partial shade and thus should be grown in open areas where it can receive at least six hours of direct sunlight every day. Lack of proper lighting can cause the plant to become leggy and weak, with fewer flowers.
Temperature requirements
Arrowleaf bindweed is a warm-season plant and grows best in areas with temperatures ranging between 65 – 85°F. It cannot withstand frost or extreme cold temperatures and thus should be grown in areas where the minimum temperatures do not fall below 40°F. Planting in areas with hot and dry conditions will require frequent watering to avoid drought stress, which can affect the plant's growth and flowering.
Soil requirements
The plant prefers well-draining soils that are moderately fertile. It cannot tolerate waterlogged soils or those with high salt content. The ideal soil pH range for growing arrowleaf bindweed is between 6.0 and 7.5. This plant has low to moderate water requirements and can tolerate drought conditions once established. However, young plants need regular watering until they develop strong root systems. Adding compost or organic fertilizers can improve soil fertility and promote healthy growth.
Cultivation Methods
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. grows well in sandy, well-draining soil. Choose a spot with full exposure to the sun and avoid planting in areas with standing water.
This plant prefers warm temperatures and can tolerate drought, making it an excellent option for gardens in dry climates.
Before planting, work some compost into the soil to provide nutrients for the plant.
Watering Needs
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. only needs watering once every two to three weeks, although more frequent watering can be necessary in hotter climates.
Ensure that the soil dries out between watering sessions, as the plant is susceptible to root rot if left in moist soil for extended periods.
During the first year of growth, water the plant frequently to establish a robust root system.
Fertilization
As with most plants, Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. benefits from regular fertilization.
Add a nitrogen-rich fertilizer during the growing season to encourage healthy growth and blooming. Alternatively, you can use organic fertilizers, such as compost or fish emulsion, to cover the plant's nutrient requirements.
Pruning
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. does not require routine pruning, but it helps to make the plant look neater and encourage new growth.
Trim back the plant once a year, after the blooming period, to encourage the growth of new foliage and prepare the plant for the following season.
To maintain the shape of the plant, trim back any unruly or damaged stems throughout the year.
Propagation of Convolvulus sagittatus Thunb. var. grandiflorus Hallier f.
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f., commonly known as arrowleaf bindweed, is a beautiful trailing plant that produces showy flowers with a delicate fragrance. The plant is native to the regions of South Africa and Namibia and grows well in warm, well-drained soils. Propagation of the plant can be achieved through the following methods:
Seed Propagation
The most common method of propagating Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. is through seeds. The seeds of the plant can be collected from the mature flowers and sown directly into the soil. It is essential to ensure that the soil is adequately prepared before sowing the seeds. This involves removing any weeds, loosening the soil to a depth of 15 cm, and adding a layer of organic compost to the soil. The seeds should be sown at a depth of 1-2 cm and watered regularly.
Division
Propagation of Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. can also be achieved through division. This method involves dividing the root system of an existing plant into smaller sections and replanting them in new soil. The best time to divide the plant is during the dormant season, which is in early spring. It is essential to ensure that each section has a healthy root system and enough foliage to support growth. The newly planted sections should be watered regularly until they establish themselves in the new soil.
Cuttings
Propagation of Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. can also be achieved using stem cuttings. This method involves cutting a section of the stem from a mature plant and planting it in a well-draining soil mix. The cutting should be placed in a warm, bright location and watered regularly. It is essential to ensure that the cutting is kept moist at all times until it develops its root system. Once it has established roots, it can be transplanted into the garden.
Disease Management
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. is generally a hardy plant with few disease problems. However, there are a few diseases that may affect the plant, including:
- Leaf Spot: Leaf spot is caused by the fungus Cercospora. Infected leaves develop small, circular, brown spots with yellow halos. To manage this disease, remove infected leaves as soon as they are spotted and avoid overhead watering. Fungicides can also be used to control severe infections.
- Root Rot: Root rot is caused by soil-borne fungi such as Phytophthora and Pythium. Infected plants have stunted growth, yellowing and wilting leaves, and eventually die. To manage this disease, avoid over-watering, improve soil drainage, and remove infected plants. Fungicides can also be used to control severe infections.
Pest Management
Convolvulus sagittatus Thunb. var. grandiflorus Hallier f. is generally resistant to many common pests. However, there are a few pests that may still pose a problem, including:
- Aphids: Aphids are small, pear-shaped insects that suck plant sap from leaves, stems, and flowers. Infested plants have stunted growth, yellowing leaves, and distorted flowers. To manage this pest, spray plants with insecticidal soap or neem oil.
- Spider Mites: Spider mites are tiny pests that suck plant sap from leaves, causing yellowing and stippling. They also spin webs on the underside of leaves. To manage this pest, spray plants with a strong stream of water or an insecticidal soap. Repeat treatment every 5-7 days until the infestation is under control.
