Origin
Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson is a native plant species found in the western parts of North America. This plant is commonly found in California, Oregon, and Washington state. It is known to thrive in rocky soils, dry open areas, open woodlands, and may also be found in oak savannas and grasslands.
Common Names
Some of the common names of Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson include lanceleaf woolly sunflower, Oregon sunshine, and woolly sunflower.
Uses
The plant has been utilized by Native Americans and early settlers for medicinal purposes. It was believed to have antiseptic and anti-inflammatory properties and was used to treat various skin conditions. The plant is rich in flavonoids, which have been shown to have antioxidant properties. The flowers of the plant also attract pollinators such as bees and butterflies. In addition, the plant is used for erosion control purposes due to its ability to thrive in rocky soils, and it is often planted in landscaping projects.
General Appearance
Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson is a perennial plant that can grow up to 4 feet tall. It has hairy stems and distinct leaves that are lance-shaped, hence the name "lanceleaf" woolly sunflower. The leaves have a unique silver-gray color and are covered with hair-like structures that help the plant retain moisture. The flowers of the plant are bright yellow and have a daisy-like appearance. They bloom in the summer months and provide a vibrant and colorful display.
Light Requirements
Eriophyllum lanatum var. lanceolatum typically grows in full sunlight, although it can tolerate some partial shade. This plant requires direct sunlight for optimal growth and tends to become leggy and weak if grown in low light conditions.
Temperature Requirements
Eriophyllum lanatum var. lanceolatum is native to Western North America and prefers a moderate to warm climate. This plant can tolerate temperatures ranging from 32°F to 100°F but does best in a temperature range of around 50°F to 80°F.
Soil Requirements
Eriophyllum lanatum var. lanceolatum grows well in a wide range of soils, but requires adequate drainage. It can tolerate sandy, loamy, or clay soils, as well as acidic or alkaline soils. A pH range of 5.0 to 8.0 is ideal. However, it should be noted that this plant is drought-tolerant and requires minimal water once established. Thus, it prefers well-draining soils, especially those with low to medium fertility levels.
Cultivation Methods
Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson, commonly known as the Oregon sunshine, is a drought-tolerant plant that grows well in full sun to partial shade. Ideally, the plant should be grown in well-drained soil with a slightly acidic to neutral pH range. If heavy clay soil is used, appropriate amendments should be made prior to planting to improve soil structure and drainage.
Propagation of the plant is done through seeds or cuttings. Seeds should be sown in the late fall to early spring, and cuttings should be taken in the early spring when the new growth appears. Once established, the plant can tolerate minimal watering and neglect.
Watering Needs
Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson is a drought-tolerant plant and requires minimal watering. Newly planted saplings should be watered regularly until they establish themselves in the ground. Afterward, the plant should be watered only during extreme drought conditions. Soggy soil can lead to root rot, so it is essential to avoid overwatering the plant. Mulching the soil around the plant can help retain moisture and reduce the need for watering.
Fertilization
The Oregon sunshine plant does not require high levels of nutrients and does well in poor soil conditions. Fertilization should be done sparingly, no more than once a year. A balanced fertilizer that is low in nitrogen and high in phosphorous and potassium should be used. Organic fertilizers such as compost, worm castings, and fish emulsion are beneficial as they release nutrients gradually over time.
Pruning
Pruning of Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson should be done in late winter or early spring before the new growth appears. The plant can be pruned to shape and to remove any dead or diseased branches. The plant responds well to hard pruning and can be cut back to the ground if necessary. Pruning will encourage new growth and maintain a healthy appearance.
Propagation of Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson
Eriophyllum lanatum (Pursh) Forbes var. lanceolatum (T.J. Howell) Jepson, commonly known as woolly sunflower, is a native perennial plant found in western North America. It is a member of the Asteraceae family and can grow up to 3 feet tall. The plant has yellow daisy-like flowers and woolly, silver-green leaves. It is often grown in native plant gardens, meadows, and wildflower gardens.
Propagation Method: Seeds
The primary method of propagation for Eriophyllum lanatum var. lanceolatum is through seeds. The seeds can be collected from mature seed heads in the fall and should be stored in a cool, dry place until planting in the spring. Before planting, the seeds should be scarified (scratched or nicked) and soaked in water overnight to increase germination rates.
The seeds can be planted in pots or directly in the ground in well-draining soil. It is recommended to cover the seeds with a thin layer of soil and keep them moist until germination occurs. Germination typically occurs within 2-3 weeks of planting. Once the seedlings have grown 4-5 inches tall, they can be transplanted to their permanent location.
Propagation Method: Clump Division
Another method of propagation for Eriophyllum lanatum var. lanceolatum is through clump division. This method is best done in the fall or early spring when the plant is dormant. The plant can be lifted from the ground and carefully divided into smaller clumps using a sharp knife or shovel. Each clump should have several healthy roots and shoots. The divided clumps can be replanted in their permanent location and watered thoroughly.
Eriophyllum lanatum var. lanceolatum is a relatively easy plant to propagate and can quickly establish in its new location. With proper care and maintenance, the plant can thrive and provide beautiful yellow blooms in the summer.
Disease Management
Eriophyllum lanatum, commonly known as Oregon sunshine, is typically resistant to most diseases. However, the plant can occasionally develop some fungal diseases in certain conditions.
One of the most common diseases that affect Eriophyllum lanatum is powdery mildew. Powdery mildew is identified by the white or grayish powdery substance that appears on the surface of the leaves, stems, and flowers. The disease is a result of high humidity and poor air circulation. The best way to manage powdery mildew is by increasing air circulation around the plant and promoting good drainage. Also, consider removing any infected parts of the plant if the infection is severe.
Fungal rust is another disease that can affect Eriophyllum lanatum. Rust is identified by small bumps on the undersides of the leaves. Eventually, yellowish-orange patches may develop on the upper parts of the leaves. Rust is typically the result of plants not being able to dry out after frequent watering. The best way to manage rust is to remove the infected plant parts and promote good air circulation around the plant. Additionally, avoid overhead watering, which can contribute to the spread of the disease.
Pest Management
Eriophyllum lanatum can occasionally be affected by pests, including aphids, spider mites, and thrips.
Aphids are small, soft-bodied insects that can be found feeding on new growth. They can cause wilting and stunting of the plant. The best way to manage aphids is by physically removing them from the plant using a strong stream of water or insecticidal soap.
Spider mites are tiny insects that can be challenging to spot. They can cause discolored leaves, webbing, and leaf drop. Spider mites thrive in hot and dry conditions. The best way to manage spider mites is by regularly spraying the plant with water and keeping the plant in a cool and humid environment. Insecticidal soap can also be used to control the infestation.
Thrips are tiny insects that are attracted to the flowers of Eriophyllum lanatum. They can cause distorted, discolored, and scarred flowers. The best way to manage thrips is by using insecticidal soap or neem oil. Additionally, consider removing infected flowers to prevent further spread of the pests.
It is important to note that prevention is the best way to manage both pests and diseases. Grow Eriophyllum lanatum in well-drained soil, provide good air circulation, and avoid overwatering the plant. Regular monitoring of the plant can help identify problems early and prevent the spread of pests and diseases.
