Introduction
Oxalis articulata Savigny subsp. articulata is a plant species belonging to the family Oxalidaceae. It is native to southern Africa and is commonly found in the Western Cape province.Common Names
Oxalis articulata Savigny subsp. articulata is commonly known by several names, including pink-sorrel, jointed wood-sorrel, and South African wood-sorrel.General Appearance
This plant is a perennial herb that grows up to 30 centimeters in height. It has a thin and wiry stem, which is slightly reddish in color. The leaves of the plant are trifoliate, which means that they have three leaflets. They are bright green and heart-shaped, with an almost leather-like texture. The flowers of the plant are small and delicate, with five pink petals, which are arranged in a star shape. They bloom in late spring and early summer, attracting bees and other pollinators. The flowers are followed by small seed capsules, which contain several small black seeds.Uses
Oxalis articulata Savigny subsp. articulata is used for a variety of purposes. In traditional African medicine, it is used to treat various ailments such as gastro-intestinal disorders, respiratory infections, and skin conditions. The plant is also used as a decorative plant in gardens and parks due to its attractive leaves and flowers. The leaves of the plant are also edible and have a tangy and sour taste due to their high content of oxalic acid. They can be eaten raw or cooked and are often used to add flavor to salads, soups, and stews. Furthermore, the root of the plant can be used to produce a yellow dye that is used in the textile industry. Overall, Oxalis articulata Savigny subsp. articulata is a versatile plant with numerous applications and benefits.Light Requirements
Oxalis articulata Savigny subsp. articulata typically grows in areas with moderate to full sun exposure. The plant prefers at least 6 hours of direct sunlight per day to thrive. In shaded areas, the plant may grow spindly with fewer flowers.
Temperature Requirements
The ideal temperature range for Oxalis articulata Savigny subsp. articulata is between 60 to 75°F (15 to 24°C). The plant can withstand temperature fluctuations ranging from 50 to 85°F (10 to 29°C). During winter, the plant prefers slightly cooler temperatures to facilitate a dormant period.
Soil Requirements
Oxalis articulata Savigny subsp. articulata prefers well-draining, fertile soil. The plant can tolerate a wide range of soil pH, ranging from slightly acidic (pH 6.0) to slightly alkaline (pH 7.5). However, the soil's pH level could affect the plant's color. A neutral pH (pH 7.0) soil could encourage more vibrant colors. The soil should also be rich in organic matter to boost plant growth and development.
Cultivation methods
Oxalis articulata Savigny subsp. articulata, commonly known as pink wood sorrel, is a herbaceous perennial plant that grows well in a variety of soil types. It prefers areas with partial shade and well-drained soil. It can be propagated through seeds or division in the spring or fall.
Watering needs
Although pink wood sorrel prefers well-drained soil, it still requires regular watering. During the growing season, the soil should be kept evenly moist, but not waterlogged. Allow the top inch of soil to dry out before watering again. Reduce watering during the winter dormancy period.
Fertilization
Fertilize pink wood sorrel using an all-purpose fertilizer once every two weeks during the growing season. Apply the fertilizer according to the manufacturer's instructions. Avoid over-fertilization, which can result in leaf burn and reduced flower production.
Pruning
Prune pink wood sorrel after flowering to maintain a neat appearance and prevent the plant from becoming too woody. Remove any dead or damaged leaves and stems. You may also prune the plant back by up to one-third to promote bushier growth.
Propagation of Oxalis articulata Savigny subsp. articulata
Oxalis articulata Savigny subsp. articulata can be propagated in several ways, including:
1. Seed Propagation
Propagation of Oxalis articulata Savigny subsp. articulata from seeds is relatively easy. The seeds should be sown in a well-draining potting mix, and kept in a warm, bright location. Water them regularly, and the seeds should germinate within one to two weeks. Once they have grown large enough to handle, they can be transplanted into their individual pots or into the garden beds.
2. Division
Oxalis articulata Savigny subsp. articulata can also be propagated by dividing the plant. This usually occurs when the plant has outgrown its pot, or has become too large for its current location. Simply dig up the plant, and separate it into smaller sections, making sure that each section has enough roots and at least one or two shoots. Replant each section in a suitable growing location.
3. Cuttings
Propagation of Oxalis articulata Savigny subsp. articulata from cuttings is another option. Take stem cuttings that are about 10 cm in length, and remove the lower leaves. Dip the cut end in a rooting hormone, and plant the cutting in a well-draining potting mix. Keep the soil moist, and the cutting should develop roots within a few weeks. Once the roots have developed, the new plant can be transplanted into its permanent location.
Overall, Oxalis articulata Savigny subsp. articulata is a relatively easy plant to propagate. You can choose from seed propagation, division or cuttings, depending on your preferences and specific requirements.
Disease and Pest Management of Oxalis articulata Savigny subsp. articulata
Oxalis articulata Savigny subsp. articulata is a small succulent shrub with a high potential for disease and pest infestation. Here are the most common diseases and pests that affect the plant and ways to manage them:
Diseases
Bacterial soft rot: The bacterial soft rot is a common disease that affects Oxalis articulata Savigny subsp. articulata plants, causing them to wilt and develop soft and mushy spots. The bacteria thrive in soggy soil, so avoid watering the plant too often or excessively. Remove the affected leaves and roots immediately to prevent further spread. Use a copper fungicide to treat the plant.
Fungal blight: Fungal blight is another prevalent disease that can damage and even kill Oxalis articulata Savigny subsp. articulata plants. It causes red or brown spots on the leaves and stems and can spread quickly. Remove the infected areas and dispose of them far away from the plant. Apply an appropriate fungicide and ensure the soil isn't too humid.
Pests
Aphids: Aphids are tiny, sap-sucking insects that can cause deformities and yellowing on the plant's leaves. They love feeding on soft and new growth. Spraying the plant with soapy water or insecticidal soap can quickly get rid of them.
Spider mites: Spider mites are minute, eight-legged pests that feed on the plant's juices, leading to leaf discoloration and shedding. Spider mites thrive in hot and dry conditions. To control them, spray the plant with neem oil or insecticidal soap. Keep the air around it humid.
Mealybugs: Mealybugs are tiny, soft-bodied insects that can cause yellowing and wilting on the plant. They excrete honeydew, which attracts other pests and creates a conducive environment for fungal growth. Using a cotton swab soaked in rubbing alcohol to wipe them off usually works. You can also introduce their natural predators, such as ladybugs and lacewings, to the plant's area.
Thrips: Thrips are slender, black insects that feed on the plant's juices and may cause its petals to become discolored. They can quickly infest plants grown in confined spaces, such as greenhouses. Remove them by using a spray of soapy water or insecticidal soap.
By carefully monitoring and maintaining your plant's health, you can ensure its ability to resist these pests and diseases and continue to thrive.
