Overview
Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig, also referred to as narrow-leaved wood sorrel or soursob, belongs to the Oxalidaceae or wood sorrel family. This plant is native to South America and can be found in countries such as Peru, Ecuador, and Bolivia.
Description
Oxalis frutescens L. ssp. angustifolia is a perennial herb with a woody base that can grow up to 1 meter in height. Its stems are thin, and the leaves are trifoliate, bearing three narrow leaflets that are oblong or elliptical in shape. These leaves are usually green, measuring 1-2.5 cm in length and 0.2-0.6 cm in width.
Common Names
In its native countries, Oxalis frutescens L. ssp. angustifolia is commonly known as "añagaza," "sauco," or "trebolcillo." In other parts of the world, it is referred to as narrow-leaved wood sorrel or soursob.
Uses
Oxalis frutescens L. ssp. angustifolia has several uses in traditional medicine. It is believed to have anti-inflammatory, antioxidant, and diuretic properties, and is often used to treat conditions such as urinary tract infections, kidney problems, and arthritis. The leaves of the plant can also be used in salads or as a condiment due to their sour taste, resembling that of lemon juice.
However, it is important to note that the plant contains oxalic acid, which can be harmful to some individuals when consumed in large quantities. Therefore, it is advisable to use this plant in moderation and with caution.
Light Requirements
Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig thrives in bright, indirect light. It is recommended to place the plant near a south or west-facing window in indoor settings. However, care should be taken not to expose the plant to direct sunlight, which can cause damage to its leaves.
Temperature Requirements
The plant prefers moderate temperatures between 60°F and 75°F (15.5°C to 24°C). It is best to avoid extreme temperatures, such as those near heating or cooling vents. Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig is susceptible to frost damage, and temperatures below 50°F (10°C) can cause the plant to stop growing or die off.
Soil Requirements
The plant requires well-draining, loamy soil with a pH level between 6.1 and 7. Soil with high acidity levels can cause leaves to turn yellow and stunt growth. Avoid overwatering, as the humid conditions can cause root rot. A peat-based soil mix can provide an optimal environment for the plant's growth.
Cultivation Methods
Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig is a popular plant with attractive small, bright yellow flowers. To cultivate this plant, it is advisable to plant it in well-draining soil, which should be rich in organic matter. The plant prefers full sunlight, but it can also tolerate partial shade. It is advisable to plant each stem separately as planting together can result in stunted growth.
Watering Needs
Watering Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig is crucial for proper growth and good health. The plant requires moderate watering, and it is advisable to water it once the top layer of the soil has dried out. Overwatering can lead to root rot, which can cause the plant to wither and die. On the other hand, underwatering can stunt its growth and cause it to dry out.
Fertilization
Fertilization is an essential aspect of Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig care. It is advisable to feed this plant with a balanced fertilizer every month during the growing season (spring and summer). During the dormant season (fall and winter), fertilization can be reduced to once every three months. It is advised to avoid over-fertilizing the plant as it can lead to leaf burn and poor growth.
Pruning
Pruning Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig is necessary to keep it looking tidy and healthy. The plant requires light and regular pruning to remove dead leaves, stems, and flowers. Pruning is necessary to promote the growth of new shoots and to maintain its shape and size. It is advisable to prune the plant during the growing season to encourage new growth.
Propagation of Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig
Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig, commonly known as Narrow-leaf woodsorrel, is a perennial shrub that belongs to the family Oxalidaceae. The plant is native to South America and is commonly cultivated as an ornamental plant in other parts of the world. The following are the propagation methods used for this plant.
Propagation by Seeds
The propagation of Oxalis frutescens can be done through seeds, which can be obtained from mature fruits of the plant. The seeds should be sown during the spring season in a well-draining soil mix. Before sowing, the seeds should be soaked in water for a few hours to soften the seed coat. Once the seeds are sown, they should be kept moist but not waterlogged. Germination usually takes place within 3 to 4 weeks, after which the seedlings can be transplanted to individual pots.
Propagation by Cuttings
The propagation of Oxalis frutescens can also be done through stem cuttings. The best time to take cuttings is during the spring season, when the plant is actively growing. The cuttings should be taken from healthy plants and should be about 5-6 inches long. The lower leaves of the cuttings should be removed, and the cuttings should be dipped in rooting hormone powder. The cuttings should be inserted in a well-draining soil mix and kept in a warm and humid environment. The cuttings usually root within 2 to 3 weeks.
Propagation by Division
The propagation of Oxalis frutescens can also be done through division. This method involves separating the plant into smaller sections, each with its own root system. The best time to divide the plant is during the spring season when the plant is actively growing. The plant should be carefully dug up and divided into smaller sections using a clean and sharp knife. Each section should have at least one healthy shoot and root system. The divided sections can be planted in individual pots with well-draining soil mix and kept in a warm and humid environment until they establish in their new pots.
Disease Management
Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig is notorious for its susceptibility to fungal diseases such as powdery mildew, downy mildew, and rust. Powdery mildew is characterized by a white powdery coating on leaves, while downy mildew forms yellow or brown patches on leaves. Rust makes leaves develop yellow or orange spots.
To manage these diseases, one must ensure that the plant is grown in well-draining soil and is not overwatered as moisture can promote the growth of fungi. Planting in areas with good air circulation and ensuring proper spacing between plants can also help prevent the spread of diseases. In case of infections, removing affected leaves immediately and applying fungicides regularly can help control the spread of the diseases.
Pest Management
Common pests that may infest Oxalis frutescens L. ssp. angustifolia (Kunth) Lourteig include spider mites, aphids, and mealybugs. Spider mites can be identified by the fine webs they produce on the leaves, while aphids and mealybugs typically cluster on the undersides of leaves.
To manage these pests, one can use natural predators such as ladybugs and lacewings or apply insecticides such as neem oil, pyrethrin, or insecticidal soap. Manual removal of pest clusters is also effective for small infestations.
Regular inspection of the plant and surrounding plants for signs of pests is crucial to prevent infestations and to take quick action if an infestation is discovered.
