Overview
Eriogonum commixtum Greene ex Tidestrom, commonly known as the Spreading Buckwheat, is a low-growing evergreen subshrub belonging to the Polygonaceae family. It can be found in the western United States, particularly in California, Nevada, and Arizona.
Appearance
The Spreading Buckwheat plant has a small stature, usually growing up to 12 inches tall and spreading about 2-3 feet wide. It has thick stems that are woody at the base, with sprawling branches that have rounded or oblong-shaped leaves, often covered with fine hairs or scales that can be green or gray in color. The plants usually bloom from May to July, producing clusters of small, white to pinkish flowers that are held above the foliage. The fruits are three-sided achenes, which are sometimes covered with reddish-brown scales.
Uses
Eriogonum commixtum was historically used as a traditional food source by Native Americans, who would grind the seeds into flour to make bread and porridge. Today, the plant is more commonly used for ornamental purposes, as it is drought-tolerant and visually attractive, making it an ideal plant for xeriscaping. The Spreading Buckwheat plant is also a great addition to pollinator gardens, as the flowers attract bees and butterflies.
Growth Conditions for Eriogonum commixtum Greene ex Tidestrom
Eriogonum commixtum Greene ex Tidestrom, commonly known as Coyote Buckwheat, is a resilient native plant of the western United States. It is a drought-tolerant species that can grow in a variety of soils. Here are some of the optimal growth conditions for Eriogonum commixtum:
Light
Eriogonum commixtum prefers full sun, but can tolerate partial shade. It usually grows in open, sunny areas and can thrive in direct sunlight for several hours each day. If the plant receives less than six hours of sunlight per day, it may not flower as much.
Temperature
Eriogonum commixtum is adapted to a wide range of temperatures. However, it grows best in moderate temperatures of around 68 to 86 °F (20 to 30 °C). The plant can also tolerate cold temperatures as low as -15 °F (-26 °C) and hot temperatures up to 110 °F (43 °C).
Soil
Eriogonum commixtum prefers well-drained soils with a slightly acidic to neutral pH range of 5.0 to 7.5. It can grow in rocky, sandy, or clay soils, as long as they are well-draining. This plant also requires good aeration in the root zone. It is sensitive to high levels of salt and does not tolerate soil compaction.
Overall, Eriogonum commixtum is a hardy species that can grow in a wide range of growing conditions. By providing it with plenty of sunlight, moderate temperatures, and well-drained soils, gardeners can cultivate an attractive and beneficial plant in their gardens or landscapes.
Cultivation Methods
Eriogonum commixtum Greene ex Tidestrom, commonly known as the Spreading Buckwheat, is a low-growing, drought-tolerant perennial plant that can thrive in various types of soils, including clay soils, provided they are well-drained. These plants require full sun and can tolerate different temperatures and humidity levels, making them ideal for gardens in USDA hardiness zones 4 to 10.
When planting Eriogonum commixtum, loosen the soil to a depth of 6 inches, remove any existing weeds, and amend the soil with organic matter to improve the drainage. Alternatively, plant them in raised beds or containers with well-draining soil.
Watering Needs
Eriogonum commixtum is a drought-tolerant plant that requires little watering once established. Water your plants deeply once a week during the hot, dry summer months. Be sure to avoid getting the leaves wet to prevent fungal growth. Always check the soil moisture level by inserting your fingers into the soil. Only water if the top inch of soil feels dry.
Fertilization
Eriogonum commixtum plants do not require frequent fertilization. Applying a slow-release fertilizer, such as a 10-10-10 fertilizer, during the spring season is sufficient. Over-fertilizing can cause excessive growth, leading to floppy leafy growth that is less attractive. It's essential to follow the manufacturer's instructions when applying the fertilizer to avoid damaging the plant.
Pruning
Pruning Eriogonum commixtum is not necessary as they have a naturally low-growing habit and tend not to require any form of shaping. However, removing old foliage and seed heads can encourage further blooming throughout the growing season. You can cut back the plant after flowering to promote fuller growth and help maintain its shape. Use clean, sharp tools during the pruning process and avoid cutting too close to the base since this can damage the plant.
Propagation of Eriogonum Commixtum Greene ex Tidestrom
Eriogonum Commixtum Greene ex Tidestrom, commonly known as Spreading Buckwheat, is a low-maintenance evergreen plant that is native to California. It grows in a variety of soil types, and its flowers attract a wide range of pollinators such as bees, butterflies, and birds. If you're interested in propagating Eriogonum Commixtum Greene ex Tidestrom, here are a few propagation methods to consider:
Seed Propagation
The most common method of propagating Eriogonum Commixtum Greene ex Tidestrom is through seed propagation. You can collect seeds from the plant during the fall season when the flower heads have dried out. Collect the seeds by lightly shaking the stem over a container. Clean the seeds by removing debris and storing them in a cool and dry place.
You can sow the seeds in pots or directly in the ground. It is essential to scarify the seed coat before sowing the seeds. This process involves nicking or sanding down the seed coat to allow water to penetrate the seed and activate the germination process. Sow the seeds at a depth of ¼ inch and water them regularly until they sprout. The germination period usually takes 2-3 weeks.
Cuttings Propagation
If you don't have access to seeds, you can propagate Eriogonum Commixtum Greene ex Tidestrom through cuttings. Take cuttings of the plant during the early summer season. Use sharp, sterilized scissors to take 3-4 inch cuttings of the new growth. Remove the lower sets of leaves and dip the cut part of the stem into rooting hormone powder. Place the cuttings in a container filled with sandy soil and keep them moist. Maintain high humidity by covering the container with a clear plastic bag and keep it in a warm and bright location. Rooting usually occurs within 3-4 weeks.
Division Propagation
You can also propagate Eriogonum Commixtum Greene ex Tidestrom through division if the plant has become overcrowded or outgrown its space. This process works best during the late fall or early spring season when the plant is dormant. Dig up the plant carefully and separate the clumps into smaller sections. Each section should have well-established roots and stems. Replant the sections in a sunny location, water them thoroughly, and mulch around them to retain moisture.
Disease Management
Eriogonum commixtum Greene ex Tidestrom is generally a hardy plant that can withstand many diseases. However, it can occasionally be susceptible to root rot, which is caused by the fungal pathogen Phytophthora. This disease is most likely to occur in soils that are poorly drained or in areas that receive excessive water. To prevent root rot, it is essential to ensure that the soil is well-drained, and the plant is not overwatered. It is also essential to remove and destroy any infected plants or plant parts immediately to prevent the spread of the disease.
Anthracnose is another disease that can affect Eriogonum commixtum. It is caused by the fungus Colletotrichum and can cause serious leaf spots on the plant. The best way to manage this disease is to ensure that the plant has enough space for good air circulation, maintain proper watering, and remove any infected plants or plant parts immediately. In severe cases, a fungicide application may be necessary.
Pest Management
Though Eriogonum commixtum is not typically attacked by many pests, it can be susceptible to aphids, spider mites, and scale insects. These pests suck the sap from the plant, causing significant damage in severe cases. The best way to manage these pests is to spray the plant with a strong stream of water or a natural pesticide like insecticidal soap. Chemical insecticides can also be used but should be used with caution to avoid harming beneficial insects.
Another common pest that affects Eriogonum commixtum is the root knot nematode. These pests cause significant damage to the root system of the plant, leading to stunted growth and poor plant health. To manage this pest, it is necessary to avoid planting in nematode-infested soil, use nematode-resistant cultivars, and ensure that the plant is well-watered and fertilized to promote root health and the plant's overall vigor.
