Origin
Eriogonum ochrocephalum S. Wats. var. calcareum (S. Stokes) M.E. Peck is a plant that belongs to the Buckwheat family (Polygonaceae). It is commonly found in the western United States, particularly in California and Nevada.
Common Names
The plant is commonly known by several names, including yellow dome, sulfur flower, and lime-loving wild buckwheat.
Uses
The Eriogonum ochrocephalum S. Wats. var. calcareum plant has several uses, particularly in landscaping and horticulture. It is often used as an ornamental plant in drought-tolerant gardens. Additionally, the plant has medicinal properties, with some Native American tribes using it to treat various ailments such as fever and stomach aches.
General Appearance
The Eriogonum ochrocephalum S. Wats. var. calcareum plant is a small shrub that typically grows up to a height of 30 to 60 cm. It has a dense domed-shaped flower head that resembles a yellow sulfur-colored pom-pom. The leaves of the plant are small and narrow with a gray-green color, which provides a beautiful contrast to the stunning flowers. The plant thrives in well-drained soils with a high content of calcium, growing in rocky slopes, along roadsides, and in disturbed areas.
Light Requirements
Eriogonum ochrocephalum S. Wats. var. calcareum requires full sunlight for optimal growth and survival. It does not grow well in shaded areas and needs at least six hours of direct sunlight each day.
Temperature
This plant requires warm temperatures to thrive. It is best suited for hardiness zones 7 through 10 where average temperatures stay above 0°C. The plant can survive in lower temperatures but may not grow as fast or produce as many flowers.
Soil Requirements
Eriogonum ochrocephalum S. Wats. var. calcareum needs well-drained soil that is rich in minerals. The plant prefers a slightly alkaline soil and can grow in soils with a pH of 6.5 to 8.5. It also requires good drainage because standing water can cause root rot.
Cultivation Methods
Eriogonum ochrocephalum S. Wats. var. calcareum (S. Stokes) M.E. Peck is a hardy plant that can grow in a variety of soil types and environments. It is best cultivated in sandy or gravelly soils that have good drainage. The plant thrives in areas with full sun exposure and can tolerate high winds and salt spray. To propagate this plant, use seeds in the fall or winter.Watering Needs
Eriogonum ochrocephalum S. Wats. var. calcareum (S. Stokes) M.E. Peck requires moderate watering. It should be watered more frequently during the first few months after planting. Afterward, the plant should be watered sparingly. The plant is well adapted to drought conditions, so be careful not to overwater it.Fertilization
Eriogonum ochrocephalum S. Wats. var. calcareum (S. Stokes) M.E. Peck does not require heavy fertilization. Fertilizer with balanced nutrients should be applied in the spring before flowering. Avoid fertilizing the plant after late summer. Organic amendments should be used sparingly, as this plant is adapted to nutrient-poor soil.Pruning
Eriogonum ochrocephalum S. Wats. var. calcareum (S. Stokes) M.E. Peck does not require regular pruning. However, occasional pruning should be done to shape it and remove dead or diseased stems. Pruning should be done in late winter or early spring before new growth appears. It is essential to avoid pruning the plant during the flowering season.Propagation of Eriogonum ochrocephalum var. calcareum
Eriogonum ochrocephalum var. calcareum is a stunning perennial plant that belongs to the Polygonaceae family. The plant is native to California and flourishes in rocky, calcareous soils at high elevations.
Propagation by Seeds
Propagation through seeds is an effective method for Eriogonum ochrocephalum var. calcareum. The seeds are best collected when the flower heads turn brown and are about to break. Once collected, they can be dried and stored for later use.
Sow the seeds in a container filled with well-draining soil in the fall or spring. Cover the seeds with a thin layer of soil, and water regularly. Germination usually takes several weeks.
Root Cutting Propagation
An alternate method of propagation involves the use of root cuttings. Gather the cuttings in the fall when the plant is dormant.
Cleanly cut a section of the root approximately an inch long and plant it in a container with well-draining soil. Water the soil regularly and ensure it stays warm. The root cutting should start to grow within a few weeks.
Division Propagation
Division also works well for propagating Eriogonum ochrocephalum var. calcareum. Divide mature plants during the fall or early spring to allow ample time for proper root development before the warm weather settles in.
When dividing, use a sharp knife to separate the roots and foliage into smaller sections without damaging the roots. Plant each section in its container, water regularly, and provide it with optimal light exposure.
It is important to note that Eriogonum ochrocephalum var. calcareum takes some time to mature, and it may take a few years before the plant starts producing flowers.
Disease Management for Eriogonum ochrocephalum var. calcareum
Eriogonum ochrocephalum var. calcareum is generally a low maintenance and disease-resistant plant. However, it may occasionally suffer from diseases like leaf spot, rust, and powdery mildew.
To manage these diseases, it is recommended to provide good air circulation and to not overcrowd the plants. Remove dead or infected leaves and stems immediately. Fungicides like copper and sulfur can also be used as a preventive measure.
Pest Management for Eriogonum ochrocephalum var. calcareum
Eriogonum ochrocephalum var. calcareum is also relatively pest-resistant. However, some common pests that may attack this plant include spider mites, thrips, and aphids.
To control these pests, regularly inspect the plant for any signs of infestation. Spray it with a strong stream of water to knock off the insects. You can also use insecticidal soap, neem oil, or horticultural oils to control pests. Chemical pesticides should be a last resort as they can harm beneficial insects like bees and butterflies.
