Overview
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson, also commonly known as straight spiderflower, is a flowering plant species that belongs to the Cleomaceae family. It is native to the western United States, specifically in Nevada, California, Arizona, and Utah. This plant grows well in hot and dry conditions, making it ideal for xeriscaping and desert landscaping.
Appearance
The Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson has a unique and attractive appearance. Its stems grow erect and reach up to 60 cm long, with thin branches that spread outwards. The leaves are hairy and spread out like a fan, appearing in shades of grayish-green. The flowers of this plant are small and inconspicuous, with pale yellow or white petals.
Uses
The traditional Native American tribes in the western United States typically used Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson for medicinal purposes. They used the roots of this plant to treat headaches, fevers, and colds. The Paiute tribe also used the roots to make a tea to treat stomachaches, coughs, and as a laxative. Today, this plant is mainly used for ornamental purposes. It is a popular choice for xeriscaping and desert gardening due to its ability to thrive in arid environments.
Overall, the Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson is an interesting and adaptable plant species that showcases unique qualities both in appearance and traditional uses.Light Requirements
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson typically grows in areas with full sun exposure. It requires at least six hours of direct sunlight daily to thrive. If the plant is grown in areas with insufficient light, it will grow weak and spindly, resulting in poor growth and yield.
Temperature Requirements
The plant requires warm temperatures for optimal growth. It grows best in areas with average daytime temperatures of 70°F to 85°F (21°C to 29.4°C) and nighttime temperatures of 60°F to 70°F (15.5°C to 21°C). If the temperature drops below 50°F (10°C), the plant's growth will be stunted. Extreme heat can also damage the plant and lead to wilting.
Soil Requirements
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson prefers well-drained soils that are rich in organic matter. The ideal soil pH for growing this plant is between 5.5 and 7.5. The soil should be kept moist but not waterlogged, as waterlogged soil can lead to root rot. Organic compost or fertilizer can be added to the soil to improve nutrient content and promote growth.
Cultivation Methods
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson prefers to grow in well-draining, sandy soil. This plant requires full sun to thrive and can tolerate hot, dry conditions. It can be grown in containers, but it is best suited for growing in the garden. When planting, make sure to space the plants at least 12 inches apart to allow for adequate air circulation. Choose a location that receives full sun and has soil with good drainage.Watering Needs
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson requires moderate to low watering. Over-watering can lead to root rot. During the growing season, water the plants only when the top of the soil feels dry to the touch. In hot and dry conditions, water the plant more frequently to prevent drought stress. Do not allow the soil to become completely dry, as this can also damage the plant.Fertilization
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson is a low-maintenance plant that does not require much fertilizer. It is a native plant that is adapted to grow in nutrient-poor soils. Fertilize sparingly, once a year in the spring, using a balanced organic fertilizer. Do not over-fertilize, as this can promote excessive foliage growth at the expense of flowers and can also lead to burning of the plant.Pruning
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson does not require much pruning. However, removing dead or damaged leaves and stems will help to encourage new growth and keep the plant looking attractive. In the fall, when the plant has finished flowering, shear it back to about half of its height to promote bushier growth in the following spring. Avoid pruning in the winter when the plant is dormant.Propagation of Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson can be propagated through both seed and vegetative methods.
Seed Propagation
Seeds of Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson can be collected from mature plants and sown in a well-drained potting mix in the fall. The seeds can be covered lightly with soil and watered regularly until germination, which can take up to 4 weeks.
Alternatively, seeds can be stratified at 40°F for 2-4 weeks before sowing to break dormancy and increase germination rates.
Vegetative Propagation
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson can also be propagated vegetatively by stem cuttings taken in the spring or early summer. The cuttings should be about 3-4 inches long and should be treated with a rooting hormone before being planted in a potting mix. The cuttings should be kept moist until they form roots, which can take several weeks.
Division of mature plants is also possible, although it should be done carefully to avoid damaging the roots of the original plant.
Disease and pest management for Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson
Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson, commonly known as narrow-leaved rockcress, is a hardy plant that is resistant to most pests and diseases. However, like all plants, it can be affected by pests and diseases that can cause damage or even death if not managed properly.
Common diseases affecting Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson
The most common diseases that affect narrow-leaved rockcress are fungal diseases such as rust, powdery mildew, and anthracnose. These diseases are usually caused by high humidity, poor air circulation, and damp soil. Symptoms of fungal diseases include yellowing leaves, wilting, and black lesions on the stems or leaves of the plant.
To manage fungal diseases, it is important to provide good air circulation and avoid overwatering the plant. Remove infected leaves and stems as soon as possible to prevent the spread of the disease. Fungicides can also be used to control the spread of the disease.
Common pests affecting Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson
The pests that commonly affect narrow-leaved rockcress include aphids, thrips, and spider mites. These pests feed on the sap of the plant, causing damage and even death if left unchecked. Symptoms of pest infestations include stunted growth, deformed leaves, and a sooty mold on the leaves.
To manage pest infestations, it is important to regularly inspect the plant for signs of infestation. Early detection is key to preventing the spread of the infestation. Insecticidal soap or neem oil can be used to manage the infestation.
It is important to note that while Cleomella plocasperma S. Wats. var. stricta Crum ex Jepson is generally resistant to pests and diseases, it is still important to provide good growing conditions and regular care to prevent infestations and diseases.
