Origin and Common Names
Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover is a plant species belonging to the family Boraginaceae. It is native to the western regions of North America, including California, Nevada, and Oregon. The plant is commonly known as showy fiddleneck or woolly bluecurls.
Appearance
The showy fiddleneck plant can grow up to 2 feet tall and has pale green leaves that feel rough to the touch due to fine hairs covering their surface. The woolly bluecurls flowers range from yellow to orange and purple shades. They have curled tips, which give the plant its fiddleneck name. The flowers are arranged in clusters at the end of the stems, forming a drooping shape.
Uses
Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover has multiple uses. Indigenous people have been using the plant for medicinal purposes for centuries. The roots and leaves of woolly bluecurls are infused to create a mixture that relieves pain. The plant is also a source of nectar for honeybees, making it an important plant for apiculture.
Light Conditions
Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover prefers full sun for optimal growth and flowering. It can tolerate some shade but may not flower as profusely. Therefore, it is recommended to plant it in an area that receives at least 6 hours of direct sunlight every day for the best results.
Temperature Requirements
This plant species is adaptable to a variety of temperature conditions. It grows best in regions with warm to hot summers and moderate winters. The optimum temperature range for growth is between 50°F to 90°F (10°C to 32°C), with an ideal soil temperature range of 60°F to 80°F (15°C to 27°C).
Soil Requirements
The Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover plant prefers slightly acidic to neutral soil with a pH range of 5.8 to 7.2. It can tolerate a range of soil types, including sandy, loamy, or clay soils, as long as they are well-draining. This plant is also relatively drought-tolerant and can survive in soils with low fertility levels, making it suitable for xeriscaping. However, for best growth, it is recommended to provide adequate water and nutrients during the growing season.
Cultivation
Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover, commonly known as bristly fiddleneck, can be easily grown in well-draining soil with a pH range of 6.0 to 7.5. The plant prefers a full sun exposure but can also survive in partially shaded areas. It is an annual plant that grows up to 2 feet tall and spreads up to 1 foot wide.
Briskly fiddleneck can be propagated easily by seed and self-sows which helps to create a lush garden effect. It is also ideal for gardens with a rocky look and can grow well in the same container with other plants.
Watering Needs
The soil should be kept slightly moist to encourage the growth of the bristly fiddleneck. The amount of water required by Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover varies depending on the type of soil and the weather. In general, it is safe to water deeply once per week during the growing period. It is important to avoid overwatering the plant as it may cause root rot.
Fertilization
Bristly fiddleneck has a low nutrient requirement. Fertilizers are not often needed, but if the growth of the plant is slow, a balanced fertilizer can be applied once every two weeks. It is essential to follow the instructions on the fertilizer container as the wrong application can harm the plant rather than helping it.
Pruning
Bristly fiddleneck, like other annual plants, does not require heavy pruning. However, to control its spread and encourage bushy growth, it is recommended to prune the tips of the plant when it reaches 6 inches in height. If the plant has finished its blooming period, it is best to remove any dry and dead blooms to promote new growth.
Propagation of Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover
Propagation of Amsinckia spectabilis Fisch. & C.A. Mey. var. microcarpa (Greene) Jepson & Hoover is usually done through seeds. The plant produces many seeds that can be collected and sown directly into the soil or into trays.
Gathering and storing seeds
To collect the seeds, harvest the dry and ripe fruits during the summer and fall. The seeds can then be extracted by rubbing the fruits between the hands, or by threshing them gently. The seeds are black, shiny, and extremely small, so be careful not to lose them. Store them in a cool, dry, and dark place until planting time.
Planting seeds
The seeds can be sown in trays or directly into the soil. If sowing in trays, use a good quality compost or potting mix, and press the seeds gently into the soil surface. If sowing directly into the soil, prepare the area by removing weeds and loosening the soil. Sow the seeds thinly, cover them lightly with soil, and water well.
Care after planting
After planting, keep the soil moist but not waterlogged. The seedlings should emerge within a couple of weeks. Once they have developed their first true leaves, thin them out to a distance of about 10-15 cm (4-6 in) apart.
Once the plants have become established, they will not require much care. They are drought tolerant and do not need fertilizers. Water only during prolonged dry spells.
Disease Management for Amsinckia spectabilis var. microcarpa
The following are common diseases that might affect Amsinckia spectabilis var. microcarpa:
- Leaf spot: This disease is caused by fungi and can cause brown spots on the leaves of the plant. To manage this disease, remove infected leaves and avoid overhead watering. Fungicides may also be used.
- Root rot: Excessive moisture can lead to root rot in Amsinckia spectabilis var. microcarpa. To prevent this, ensure proper drainage and avoid overwatering the plant.
- Powdery mildew: Powdery mildew is a fungal disease that can cause a white, powdery coating on the leaves of the plant. To manage powdery mildew, apply fungicides and ensure proper air circulation around the plant.
Pest Management for Amsinckia spectabilis var. microcarpa
The following are common pests that might affect Amsinckia spectabilis var. microcarpa:
- Aphids: Aphids are small insects that can cause curling or yellowing of leaves. To manage aphids, introduce beneficial insects, such as ladybugs, or use insecticidal soaps.
- Spider mites: Spider mites are tiny pests that can cause yellowing of leaves and a fine webbing on the plant. To manage spider mites, spray the plant with water to remove the mites and use insecticidal soaps.
- Caterpillars: Caterpillars can feed on the leaves of the plant and cause damage. To manage caterpillars, introduce beneficial insects, such as parasitic wasps, or use insecticides.
