Origin
Machaeranthera bigelovii (Gray) Greene var. commixta (Greene) B.L. Turner is a native plant to the western region of North America. This plant can be found in various areas such as California, Nevada, Arizona, New Mexico, Utah, and Colorado.
Common Names
This plant is commonly known as Bigelow's tansyaster or annual purple-aster.
Uses
The Machaeranthera bigelovii (Gray) Greene var. commixta (Greene) B.L. Turner has many uses. It is often used for ornamental purposes and is commonly found in gardens and landscapes. It is also used for medicinal purposes because this plant possesses anti-inflammatory and antioxidant properties. It has been used for centuries by indigenous people to treat fever and other health issues.
General Appearance
The Machaeranthera bigelovii (Gray) Greene var. commixta (Greene) B.L. Turner can grow up to 12-20 inches in height. It has thin woody stems with branches that can spread up to 3 feet wide. The leaves are narrow and linear and have a smooth texture. The flowers are purple in color with yellow centers and bloom from late spring to early fall. The plant requires full sun exposure and well-drained soil for optimal growth.
Light Requirements
Machaeranthera bigelovii var. commixta typically grows in full sun to partial shade. It prefers bright light and may not thrive in low-light conditions. In areas with intense sunlight, it may benefit from some temporary shading during the hottest parts of the day.
Temperature Requirements
This plant is native to the western United States and is well adapted to hot, dry conditions. It is drought-tolerant and can withstand high temperatures. However, it may suffer in extremely cold temperatures and may require protection or mulching during the winter months.
Soil Requirements
Machaeranthera bigelovii var. commixta grows best in well-draining soil, such as sandy or rocky soil. It is adaptable to a range of soil types, including alkaline soils. However, it may require amended soil if the existing soil is heavy, dense, or poorly draining.
Cultivation of Machaeranthera bigelovii var. commixta
Machaeranthera bigelovii var. commixta, also known as Bigelow’s tansyaster, is a hardy perennial that thrives in dry, well-drained soil. It prefers full sun to partial shade and can tolerate drought and heat. The plant can be propagated from seeds, cuttings, or division.
Watering Needs
Bigelow’s tansyaster is drought-tolerant and does not require frequent watering. It can survive on rainfall alone, but occasional watering during prolonged dry spells can help the plant thrive. Water the plant deeply once a week during the growing season, and reduce watering in the fall and winter to prevent root rot.
Fertilization
Fertilization is not necessary for Bigelow’s tansyaster, but a light application of compost or a balanced slow-release fertilizer in the spring can encourage healthy growth and blooming. Avoid over-fertilization, which can produce lush foliage at the expense of flowers.
Pruning
Deadheading spent flowers promotes continuous blooming and prevents the plant from self-seeding. Prune back the plant in early spring to encourage new growth and a fuller shape. Cut back any diseased or damaged stems as necessary throughout the growing season.
Propagation of Machaeranthera Bigelovii var. Commixta
Machaeranthera bigelovii var. commixta is a hardy perennial plant that belongs to the Asteraceae family. It is commonly known as Bigelow's tansyaster and is native to the western regions of the United States. The plant grows well in arid and semi-arid regions, making it an ideal choice for xeriscaping projects. Propagation of the plant can be done in several ways, including seed propagation, division, and stem cutting.
Seed Propagation
Seed propagation is the most common way of propagating Machaeranthera bigelovii var. commixta. The plant produces small seeds that can be collected once the flower heads start to dry after blooming. The seeds should be harvested in late summer and sown immediately or stored in a cool, dry place for future use. To plant the seeds, prepare a well-draining potting mix and sprinkle the seeds on the surface. Water the soil gently and cover it with plastic wrap or a clear lid to retain moisture and heat. The seeds should germinate in about two weeks, and the seedlings can be transplanted to individual containers or directly into the ground.
Division
Division is an easy way of propagating Machaeranthera bigelovii var. commixta and is suitable for mature plants. The best time to divide the plant is during the spring or fall when the plant is dormant. To divide the plant, loosen the soil around the base of the plant and gently lift the root ball from the ground. Use a sharp knife or garden shears to cut the root ball into several sections, making sure each section has some roots and foliage. Replant the divided sections in a well-draining soil mix and water the plant to help it establish.
Stem Cutting
Stem cutting is a quick and easy way of propagating Machaeranthera bigelovii var. commixta, and it is best done during the summer or early fall. To propagate the plant through stem cutting, take a 4-6 inch cutting from the tip of a healthy stem. Remove the lower leaves, leaving only a few at the top, and dip the cut end in a rooting hormone powder. Plant the cutting in a well-draining soil mix, water it thoroughly, and cover it with a plastic bag or clear lid to retain moisture and heat. The cuttings should root in about 2-3 weeks, and they can be transplanted to individual containers or directly into the ground.
Disease and Pest Management for Machaeranthera Bigelovii (Gray) Greene var. Commixta (Greene) B.L. Turner
Machaeranthera bigelovii (Gray) Greene var. commixta (Greene) B.L. Turner is a resilient plant that is known for its resistance to most pests and diseases. However, just like any other plant, it can still be affected by various issues. Below are some of the common diseases and pests that might affect the plant, and suggestions on how to manage them.
Diseases
Leaf Spot - This plant disease is characterized by small, circular spots on the leaves that can turn into larger, brown lesions. These lesions can cause the leaves to wither and eventually fall off. To manage this disease, remove the affected leaves and destroy them to prevent the spread of the disease. Provide proper soil drainage and avoid overhead watering to prevent leaf spot formation.
Root Rot - This disease is caused by a fungus that affects the roots of the plant, causing them to rot and turn brown. Eventually, the whole plant may become discolored and withered. To prevent root rot, ensure proper drainage by growing the plant in well-draining soil, avoid overwatering, and remove any dead plant material immediately.
Pests
Aphids - These small, soft-bodied insects can cause significant damage to the plant by feeding on its leaves. Infested plants can become stunted, and the leaves can become distorted. Remove the aphids by spraying the affected parts of the plant with a mixture of soap and water or insecticidal soap.
Spider Mites - These pests are not insects but are more closely related to spiders. They are tiny, and the first indication of their presence is when the leaves begin to look dull or stippled. The best way to manage spider mites is by spraying the plant with a mixture of dish soap and water. Another option is to introduce predatory mites or ladybugs into the garden to eat the spider mites.
Caterpillars - These pests can feed on the leaves or stems of the plant and can cause significant damage if left unchecked. The best way to manage them is to handpick and remove them from the plant. Bacillus thuringiensis, an organic pesticide, can also be a reliable option as it is nontoxic to humans and animals.
By following the above measures, you can keep your Machaeranthera Bigelovii (Gray) Greene var. Commixta (Greene) B.L. Turner healthy and thriving free from all types of diseases and pests.
