Overview
Eriogonum howellii S. Stokes var. subracemosum S. Stokes is a perennial plant species. This flowering plant belongs to the family Polygonaceae and is native to western North America. The plant has several common names, including Howell's wild buckwheat, serrated wild buckwheat, and subracemose or subracemoseheaded buckwheat.
Appearance
The plant typically grows to a height of about 60 cm. It features dense, low-growing foliage, thin stems, and clusters of small flowers. The leaves of the plant are narrow and greyish-green in color. The wild buckwheat plant blooms in early summer, and its flowers are small and arranged in compact clusters, which are a mixture of white and pink colors. The flowers usually measure approximately 3-5 mm in diameter and are arranged in subracemose inflorescences.
Uses
Eriogonum howellii S. Stokes var. subracemosum S. Stokes is mainly cultivated as an ornamental garden plant. Its beautiful pink and white flowers make it a popular choice for landscaping. However, Native American communities have used the plant for medicinal and culinary purposes. The plant contains medicinal compounds that treat various diseases such as stomach aches, headaches, and fever. The Native Americans also used the plant's leaves to make a tea mixture that was believed to cure colds, flu, and coughs. The flowers and leaves of the plant were dried and then ground into a fine powder, which was incorporated into baked goods such as bread and biscuits.
Light Requirements:
Eriogonum howellii S. Stokes var. subracemosum S. Stokes prefers full sun to partial shade. It grows well in areas that receive at least 6 to 8 hours of direct sunlight daily. In shaded areas, the plant's growth rate may be slower, and it may produce fewer flowers.
Temperature Requirements:
The plant thrives in areas with a Mediterranean climate characterized by warm, dry summers and mild, wet winters. Temperatures within the range of 65°F to 85°F are optimal for growing Eriogonum howellii S. Stokes var. subracemosum S. Stokes. The plant can tolerate temperatures as low as 20°F during winter when it becomes dormant.
Soil Requirements:
The plant grows in well-draining soils that are moist but not waterlogged. It prefers slightly acidic soils with a pH range of 6.0 to 7.5. The plant grows well in a wide range of soils, but it thrives in sandy loam and clay loam soils with good drainage. Adding organic matter such as compost or manure to planting areas can help improve the soil texture, water retention, and nutrient content.
Cultivation Methods
Eriogonum howellii S. Stokes var. subracemosum S. Stokes, commonly known as Howell's wild buckwheat, can be grown in a variety of soil types, including sandy and loamy soils. It prefers well-draining soils and is relatively drought-tolerant, making it an excellent candidate for xeriscaping. This plant can be propagated through seeds or stem cuttings and can be planted in late spring to early summer after the last frost. It is essential to ensure adequate sunlight, and full sun exposure is ideal. The plant can also tolerate partial shade.
Watering Needs
Eriogonum howellii S. Stokes var. subracemosum S. Stokes requires moderate watering during the growing season. As a drought-tolerant plant, overwatering can lead to root rot and, in severe cases, plant death. Therefore, it is crucial to avoid waterlogged soil and ensure proper drainage. Watering can be reduced during the winter season when the plant is dormant.
Fertilization
Eriogonum howellii S. Stokes var. subracemosum S. Stokes does not require regular fertilization. In fact, excessive fertilization can lead to excessive growth and foliage at the expense of flower production. However, if the plant appears to be nutrient deficient, a slow-release, low-nitrogen fertilizer can be applied during the growing season.
Pruning
Pruning Eriogonum howellii S. Stokes var. subracemosum S. Stokes can be done after flowering. The plant can be cut back to one-third of its size to promote bushier growth and prevent the plant from becoming too leggy. Pruning can also help rejuvenate an older plant and promote new growth in the next season.
Propagation of Eriogonum howellii var. subracemosum
Eriogonum howellii var. subracemosum is a small perennial subshrub, commonly known as Howell's buckwheat. It is an excellent addition to rock gardens and wildflower gardens. Propagation of this plant can be done by seed or vegetative means.
Propagation by seed
The ideal time to sow the seeds is in the fall. Collect the mature seeds from the parent plant and dry them. Store them in a dry, cool place. In the early spring, just before the last frost, sow the seeds in well-drained, sandy soil. The seedlings will emerge in about 2-3 weeks. Keep the soil moist, but not wet. Once they grow a few true leaves, transplant them to your desired location.
Propagation by vegetative means
Propagation by vegetative methods can be done by taking stem cuttings or dividing the root ball. It is essential to take cuttings from a healthy parent plant. Take cuttings in the early summer when the plant is actively growing. Cut a portion of the stem, about 3-4 inches long, just below a node. Remove the lower leaves, leaving only one or two at the top. Dip the cut end in rooting hormone, and plant it in a well-drained soil mix. Keep the cutting moist and warm. Roots will develop within a few weeks, and once established, transplant them to your desired location. Dividing the root ball is another vegetative method where the parent plant's root ball is separated into smaller pieces and planted separately.
Propagation of Eriogonum howellii var. subracemosum is a great way to preserve the species for future generations. With proper care and maintenance, it will provide years of beauty and enjoyment.
