Overview
Selago quadrangularis Choisy is a plant species from the family Scrophulariaceae. It is commonly known as square-stemmed selago. This plant is known for its medicinal uses and decorative value. It is a native of Madagascar and can be found in various other regions across the world.
Appearance
Selago quadrangularis is a small shrub that grows up to 40cm in height. It has a woody stem that is square in shape and is covered with hairs. The leaves of the plant are small and oval-shaped with a pointed edge. They are green in color and the underside is covered with fine hair-like structures. The plant produces small, white or purple flowers that grow in clusters at the tip of the branches.
Common Names
Selago quadrangularis is known by different names across the world. In Madagascar, it is called Ombihibe or Ombihiby. It is also known as square-stemmed selago or just selago in English. In Africa, it is called Mutigwi or Mubeba in Zambia.
Uses
The plant has been used for medicinal purposes in various parts of the world. It is believed to have anti-tumor and anti-inflammatory properties. The roots and leaves of the plant are used to prepare concoctions that are used to treat various ailments such as respiratory problems, fever, and headache. The plant is also used extensively for decorative purposes due to its beautiful flowers and foliage.
In conclusion, Selago quadrangularis is a small shrub that is widely distributed across different regions of the world. It is known for its medicinal properties and decorative value. This plant plays a significant role in various traditional healing practices and is of great importance to many cultures.
Light Requirements
Selago quadrangularis Choisy requires full sunlight to grow. The plant does not thrive well in shaded areas or areas with partial sunlight. It is recommended to grow this plant in areas with full sunlight exposure to promote optimal growth conditions and proper development.
Temperature Requirements
The plant prefers warm and tropical weather conditions. The ideal temperature range for Selago quadrangularis Choisy is between 20-30°C. The plant can grow in temperatures ranging from 15-35°C, but growth may be affected in extreme conditions. It is important to maintain the recommended temperature range for a healthy and thriving plant.
Soil Requirements
Selago quadrangularis Choisy prefers well-drained, sandy soils with a pH range of 5.5-6.5. The plant can tolerate various soil types, but it grows best in well-drained soils that allow for proper air and water circulation. The addition of organic matter to the soil can improve nutrient availability and promote healthy growth.
Cultivation Methods for Selago Quadrangularis Choisy
Selago quadrangularis Choisy thrives in climates that are warm and moist, and in soils that are well-draining and slightly acidic. To cultivate this plant, start by planting it in soil that has been enriched with organic matter and keep it in a location that receives partial shade. The ideal temperatures for the plant are between 20 to 30 degrees Celsius, and it requires protection from freezing temperatures.
Watering Needs for Selago Quadrangularis Choisy
When it comes to watering Selago quadrangularis Choisy, it is important to ensure that the plant receives enough moisture. This can be achieved by watering the plant regularly during the growing season, but avoiding overwatering as it can lead to root rot. Monitor the soil moisture levels frequently, and water the plant as needed to keep the soil bed slightly moist.
Fertilization of Selago Quadrangularis Choisy
For optimal growth and health of the Selago quadrangularis Choisy plant, fertilization is necessary. Apply a balanced, slow-release fertilizer during the growing season to supply the essential nutrients. Be cautious not to over-fertilize the plant as this can cause an imbalance that will lead to poor growth and development.
Pruning of Selago Quadrangularis Choisy
Pruning Selago quadrangularis Choisy is necessary for the health and aesthetics of the plant. You may prune the plant twice in a year to shape it and encourage bushier growth. Cut off any yellow leaves, dead limbs, and damaged stems as part of maintenance. Pruning also allows light to reach the base of the plant, promoting new growth.
Propagation of Selago quadrangularis Choisy
Selago quadrangularis Choisy is usually propagated through vegetative means, such as stem cuttings and division. These methods are more reliable than seed propagation, as the plant does not produce viable seeds in most cases.
Stem cuttings
Stem cuttings are the most common method of propagating Selago quadrangularis. The stems should be cut into 5-7 cm long sections, making sure to include at least two nodes per cutting. The cuttings should then be dipped into rooting hormone powder and planted into a well-draining soil mix. The cuttings should be kept moist and in a warm and humid environment until new growth emerges, usually within 4-6 weeks.
Division
Another method of propagating Selago quadrangularis is through division. This involves separating the plant into smaller sections, each with its own roots and shoot system. The parent plant should be carefully dug up, and the root system separated into smaller sections. Each section should have at least one shoot and multiple roots. The sections should then be planted into their own pots or a prepared garden bed, with well-draining soil. The plant should be kept moist until new growth emerges, usually within 4-6 weeks.
It is important to note that Selago quadrangularis prefers a warm and humid environment for propagation. Bottom heat and a high humidity environment can help to stimulate root growth and prevent the cuttings from drying out. Additionally, it is important to use sterile equipment when propagating to prevent the spread of disease.
Disease Management
Selago quadrangularis Choisy plants are susceptible to several diseases, including fungal leaf spot, powdery mildew, and root rot. Fungal leaf spot causes circular spots on the leaves, while powdery mildew appears as a white powdery coating on the leaves and stems. Root rot occurs when the roots are overwhelmed by fungi- causing the plant to wilt and die.
To manage fungal diseases, avoid overhead watering, as wet leaves promote fungal growth. Remove infected foliage and stems and keep the area around the plant clean and free from debris. Consider using a fungicide labeled for use on ornamental plants to control the disease.
For root rot management, ensure proper soil drainage, avoid overwatering, and use a well-draining soil mix. If the plant is affected by this disease, remove it from the pot, wash the roots, remove all affected roots and repot in a clean pot containing fresh soil.
Pest Management
Selago quadrangularis Choisy plants are also susceptible to pests like spider mites, scale insects, and aphids. Spider mites are tiny pests that suck plant sap, weakening the plant, and reducing overall vigor. Scale insects look like small brown bumps on plant stems and leaves, while aphids are small, soft-bodied insects that cluster on new growth.
To manage pests, isolate affected plants to prevent the spread of pests. Use an insecticidal soap, neem oil, or horticultural oil to manage moderate infestations. For severe infestations, consider contacting a pest control professional for assistance. Additionally, it is advisable to keep the plant healthy, promote growth by applying appropriate fertilizers and ensure proper watering.
