Origin
Convolvulus aridus Greene ssp. intermedius Abrams, also known as Big Bend bindweed, is a flowering plant that belongs to the family Convolvulaceae. This plant species is native to the southwestern United States, particularly in California, Arizona, Nevada, and Utah. It grows in dry, open areas, such as deserts, mesas, and plateaus, and can thrive in both alkaline and acidic soils.
Common Names
Aside from Big Bend bindweed, Convolvulus aridus Greene ssp. intermedius Abrams goes by other common names, such as desert bindweed, and intermediate bindweed.
Uses
While Convolvulus aridus Greene ssp. intermedius Abrams does not have significant industrial or commercial uses, it is an important species for the ecosystem and native animals. The plant's seeds and leaves are part of the diet of several animals like rabbits, pronghorns, and sheep. Additionally, it is used in traditional medicine as a remedy for constipation, digestive problems, and skin irritation.
General Appearance
Convolvulus aridus Greene ssp. intermedius Abrams is a perennial herb with twining or prostrate stems that can grow up to two feet long. The leaves are thick, fleshy, and hairy, with an oval shape and pointed apex. They are arranged alternately along the stems and are three to five centimeters long. The flowers are funnel-shaped, white, and up to two centimeters wide. They bloom in spring and summer and grow solitary, or in clusters of two to three in the leaf axils. The plant has a large, white, and tuberous root that can reach up to one meter deep on the ground.
Light requirements
Convolvulus aridus Greene ssp. intermedius Abrams is a plant that requires full sunlight to grow properly. It cannot tolerate shades or partial sunlight. For this reason, it is an ideal plant for growing in areas with long hours of direct sunlight.
Temperature requirements
The plant Convolvulus aridus Greene ssp. intermedius Abrams is well adapted to hot and dry conditions. It can tolerate a wide range of temperatures, from highs of 40°C to lows of 10°C. It is, however, essential to note that young plants are more sensitive to low temperatures and frost. Therefore, it is important to protect them during colder days.
Soil requirements
Convolvulus aridus Greene ssp. intermedius Abrams prefers sandy soil that is well-drained and has low fertility. The plant grows best in alkaline soils, with a pH range of 7.0 to 8.5. It can also tolerate saline soils and soils with high sodium content. The plant is drought-resistant and does not require frequent watering. In fact, it can grow well without water for long periods, making it ideal for arid and semi-arid regions.
Cultivation Methods
The Convolvulus aridus Greene ssp. intermedius Abrams thrives in well-drained soils and dry conditions, making it an excellent plant for xeriscaping. If the soil is not well-drained, it is crucial to amend it with organic matter and sand to create a porous and well-drained medium. The plant prefers full sunlight exposure but will tolerate partial shade.
Watering Needs
While the Convolvulus aridus Greene ssp. intermedius Abrams is drought-tolerant, it still needs consistent watering while establishing roots. Once established, it requires minimal watering. It is vital to avoid overwatering, as it can lead to root rot and other fungal problems.
Fertilization
The plant Convolvulus aridus Greene ssp. intermedius Abrams does not require frequent fertilization. It is best to apply a slow-release fertilizer once a year during the growing season. It is essential to avoid over-fertilizing, as it can lead to excessive vegetative growth, impeding flowering and overall plant development.
Pruning
The Convolvulus aridus Greene ssp. intermedius Abrams plant requires minimal pruning. If necessary, prune the plant's spent blooms to promote new flower production and encourage bushier growth. It is also crucial to remove dead or diseased branches to maintain healthy plant development.
Propagation of Convolvulus aridus Greene ssp. intermedius Abrams
Convolvulus aridus Greene ssp. intermedius Abrams can be propagated using both sexual and asexual reproduction methods.
Sexual Reproduction
The plant produces small, inconspicuous white to pink flowers which are self-fertile. In its native habitat, it blooms from February to May. To propagate through sexual reproduction, the seeds can be collected from the mature capsules and sown in a well-draining soil mix in early spring. The seeds should be sown at a depth of approximately 1 centimeter and lightly covered. The seedlings should emerge in 14 to 28 days and can be transplanted to larger containers or directly planted in the garden when they reach 7 to 10 cm in height.
Asexual Reproduction
Convolvulus aridus Greene ssp. intermedius Abrams can also be propagated through division and stem cutting methods.
Division: This method involves dividing the parent plant into two or more sections and replanting them. It is advisable to divide in early spring before the new growth appears. Carefully dig around the root ball, lift the mass and gently pull apart the clumps. Each new clump should have healthy roots and ample foliage.
Stem Cuttings: Cuttings can be taken from the parent plant in late spring to early summer. Select healthy, new shoots without any blooming flowers and cut them with a sharp, sterilized knife. Avoid cutting too close to the base of the plant as this can injure it. The cuttings should be approximately 10 to 12 cm long and free of any flowers. Remove the lower leaves and dip the cut ends in rooting hormone powder. Insert the cuttings about 2 to 3 cm deep in a sterile potting soil mix. Water well and cover with a plastic bag or dome to keep the humidity high. The cuttings should develop roots in 3 to 6 weeks and can be transplanted into larger containers or directly into the garden.
Disease Management
Convolvulus aridus Greene ssp. intermedius Abrams is susceptible to several diseases, including:
- Root Rot: This fungal disease is caused by the presence of waterlogged soil. To prevent root rot, it is essential to ensure adequate drainage. Use a well-draining soil mix, avoid overwatering, and ensure proper air circulation.
- Leaf Spot: This fungal disease affects the foliage of the plant. It appears as dark brown or black spots on the leaves. To manage leaf spot, prune and remove any infected plant parts immediately. Additionally, avoid overhead watering to minimize moisture on the foliage.
- Powdery Mildew: This fungal disease causes a powdery white coating on leaves, stems, and flowers. To prevent powdery mildew, avoid overcrowding the plants and ensure adequate air circulation. If powdery mildew appears, prune and remove any infected plant parts and apply a fungicide spray.
Pest Management
Convolvulus aridus Greene ssp. intermedius Abrams is also prone to pest attacks. Some common pests that might affect the plant include:
- Aphids: These tiny insects feed on the sap of the plant, and their presence can weaken the plant. To manage aphids, spray the infested plant with a strong stream of water or apply insecticidal soap or oil.
- Caterpillars: Caterpillars are the larvae of moths and butterflies. These pests feed voraciously on the foliage of the plant. To manage caterpillars, inspect the plants regularly for signs of infestation, and manually remove any visible larvae. Alternatively, use Bacillus thuringiensis (BT) spray or apply insecticidal soap.
- Spider Mites: These pests are not insects but arachnids. They are very small and can be difficult to spot. Spider mites feed on the plant's sap and can cause significant damage to the foliage. To manage spider mites, use a strong stream of water to rinse the plant or apply insecticidal soap or oil.
Prevention is always the best approach in dealing with pests and diseases. Maintaining healthy and well-nourished plants can help them withstand pest attacks and diseases. Always keep an eye on the plants, and act quickly if any problems are detected. Early detection and intervention can help prevent further damage and ensure that the plants remain healthy and vibrant.
