Origin:
Lotus argophyllus (Gray) Greene var. ornithopus (Greene) Ottley, commonly known as silvery-decorated birdfoot trefoil, is native to North America, from British Columbia to California and eastward to Colorado, Wyoming, and Nebraska. This species of flowering plant belongs to the family Fabaceae and the subfamily Faboideae.Common Names:
The plant is commonly known as silvery-decorated birdfoot trefoil due to its silvery foliage and bird-like flowers that resemble a bird's foot. Other common names include silvery bird's foot trefoil and argophyllus bird's foot.Uses:
Silvery-decorated birdfoot trefoil is used as a forage plant for livestock as it is highly palatable and nutritious. It is also used for erosion control and reclamation of disturbed sites. In addition, the plant has some medicinal uses, such as treating diarrhea, sore throat, and liver problems.General Appearance:
Silvery-decorated birdfoot trefoil is a perennial herb that grows up to 50 cm tall. The plant has a deep taproot system and can tolerate drought conditions. The leaves are glabrous and silvery-gray in color, with three leaflets that have a narrow oval shape. The flowers are borne in clusters of 2-4 and are yellow in color, with red or maroon markings. The flowers bloom from June to August. The plant produces small pods that contain seeds, which are important for the reproduction and dissemination of the species. The plant has a bushy habit and forms small mounds, which give it an attractive appearance.Light Requirements
Lotus argophyllus var. ornithopus grows well in full sunlight. It requires at least six hours of direct sunlight each day to thrive. This plant has adapted to dry, hot climates and can withstand intense sunlight and heat. However, it may require some shade during the hottest parts of the day in areas with high summer temperatures.
Temperature Requirements
This plant is well-suited to hot, dry environments and can tolerate high temperatures. It has a wide temperature range and can grow in areas with both hot summers and cold winters, as long as temperatures do not consistently drop below 10°F (-12°C). Ideal temperatures for growth are between 70°F and 90°F (21°C and 32°C).
Soil Requirements
Lotus argophyllus var. ornithopus prefers well-draining soil with a neutral or slightly acidic pH. It can grow in sandy or loamy soils, but it prefers soils with high levels of organic content. This plant is well-adapted to low-nutrient soils and can grow in rocky or gravelly soils. However, it will not grow in waterlogged soils and requires soil that can dry out between watering.
Cultivation
Lotus argophyllus is a hardy perennial plant that is easy to propagate from seeds or cuttings. It prefers full sun exposure but can tolerate some shade. This plant is adaptable to most soil types but prefers well-draining, moderately fertile soil.
It is essential to space the plants six to twelve inches apart to give them enough room to grow. Clinically, the plant can reach up to three feet in height and two feet in width. It is an excellent plant for garden borders as it has an attractive, ornamental appearance.
Watering Needs
Lotus argophyllus enjoys regular water to keep the soil moist but not waterlogged. During the hot summer months, ensure this plant does not dry out by watering deeply at least once a week.
It is best to avoid overhead watering as this may encourage leaf diseases. A soaker hose or drip irrigation system is ideal for watering this plant.
Fertilization
Fertilizing Lotus argophyllus once every six to eight weeks is ideal for maintaining its growth and promoting healthy foliage. Apply a well-balanced, slow-release fertilizer that is rich in nitrogen, phosphorus, and potassium.
Alternatively, you can apply a top dressing of compost or well-rotted manure around the base of the plant. This will help enrich the soil, giving the plant the necessary nutrients it needs to grow and thrive.
Pruning
Pruning is beneficial for maintaining the shape and health of the plant. It is best to prune this plant in late winter or early spring before new growth appears.
To prune, remove any dead, damaged, or diseased branches, cut back any overgrown stems and thin out any crowded branches to encourage airflow and sunlight to penetrate the plant's center. You can also pinch back the tips of stems to encourage bushy growth and promote flowering.
Propagation of Lotus argophyllus var. ornithopus
Lotus argophyllus var. ornithopus, commonly known as bird's foot trefoil, is a flowering plant that belongs to the pea family. The plant is native to the western United States and is known for its ornamental value and ability to fix nitrogen in the soil. Propagation of this plant can be achieved through various methods such as seeds, cuttings, and division.
Propagation through Seeds
The most common method of propagating Lotus argophyllus var. ornithopus is through seeds. The plant produces small, dark-colored seeds that are enclosed in a pod. To propagate through seeds, collect the mature pods when they start to turn brown and dry. Remove the seeds from the pod and store them in a cool, dry place until you are ready to plant. To ensure better germination, scarify the seeds by nicking the seed coat before planting.
Sow the seeds in a well-draining, sandy soil mix in early spring or fall. Cover the seeds lightly with soil and keep the soil moist. The seeds should germinate within 14-21 days.
Propagation through Cuttings
Another method of propagating Lotus argophyllus var. ornithopus is through stem cuttings. Take stem cuttings in the spring or summer, when the plant is actively growing. Choose a healthy stem and cut a four-inch section just below a leaf node. Remove the leaves from the bottom half of the stem and dip the cut end in a rooting hormone. Plant the cutting in a well-draining, sandy soil mix and keep the soil moist. The cutting should root within four to six weeks.
Propagation through Division
Lotus argophyllus var. ornithopus can also be propagated through division. This method involves dividing the parent plant into smaller sections and replanting them. The best time to divide the plant is in the spring or fall. Dig up the parent plant and gently separate the sections. Each section should have roots and at least one stem. Replant the sections in a well-draining, sandy soil mix and water well.
Disease and Pest Management for Lotus argophyllus (Gray) Greene var. ornithopus (Greene) Ottley
Lotus argophyllus (Gray) Greene var. ornithopus (Greene) Ottley, commonly known as birdfoot deervetch, is a wildflower native to the western United States. While this plant is generally hardy and resistant to many diseases and pests, it can still be vulnerable to certain issues. Here are some common diseases and pests that can affect this plant and ways to manage them:
Diseases
1. Crown rot: Crown rot is a fungal disease that can cause the plant to wilt and die. The fungus infects the base of the plant and attacks the roots, which can eventually lead to the death of the entire plant. To manage this disease, it's essential to plant birdfoot deervetch in well-draining soil and to avoid overwatering. If you notice any signs of crown rot, such as wilting or discoloration, remove the affected plant immediately to prevent further spread of the disease.
2. Leaf spot: Leaf spot is a fungal disease that can cause circular black or brown spots on the leaves of the plant, leading to eventual defoliation. To manage this disease, remove and destroy any infected leaves as soon as possible and avoid overhead irrigation. Also, ensure that the plant is adequately spaced to promote air circulation.
Pests
1. Aphids: Aphids are small, soft-bodied insects that can damage the plant by sucking the sap from the leaves and stems. They can also transmit viruses to the plant. The best way to manage aphids is by washing them off with a strong stream of water or by applying insecticidal soap or neem oil. If the infestation is severe, you may need to use chemical insecticides.
2. Spider mites: Spider mites are tiny arachnids that feed on the plant by piercing the plant cells and sucking out the contents. The damage caused by these pests can lead to discoloration and eventual defoliation. To manage spider mites, remove any infected leaves, and apply a miticide or insecticidal soap to the plant. You may need to repeat the treatment several times, as spider mites can reproduce very quickly.
Overall, the best way to manage diseases and pests in birdfoot deervetch is to maintain a healthy plant by providing adequate space, sunlight, and water. Regular monitoring and prompt action when you notice any issues can help prevent the spread of diseases and pests and keep your plant healthy and thriving.
