Overview
Sphaeralcea ambigua Gray var. aculeata Jepson is a plant species from the family Malvaceae. It is a type of herbaceous perennial that commonly appears in arid and semi-arid regions of the western United States, including Arizona, California, Nevada, Utah, and Oregon.
Common Names
The plant has various common names such as Desert Globemallow, False mallow, Apricot Mallow, Globe Mallow, and Suncup.
Appearance
Sphaeralcea ambigua Gray var. aculeata Jepson has a unique appearance with a shrubby or herbaceous texture. It typically grows up to 2 to 3 feet in length and 2 to 4 feet in width. The plant has a deep root system, which helps it to survive the dry environment. The leaves of the plant are grayish-green and shaped like a palm. The edges of the leaves are serrated, making them sharp and pointed. The plant produces a variety of showy flowers that are usually 1 inch in diameter and bright orange in color.
Uses
This plant has been traditionally used by Native American tribes for both food and medicinal purposes. The roots and leaves of the plant have astringent and emollient properties and have been used to treat respiratory ailments. The roots are also used to make a tasty beverage that was consumed as a refreshment during the hot season. Additionally, the plant is widely used as an ornamental plant in gardens because of its beautiful and vibrant flowers.
Light Requirements
Sphaeralcea ambigua Gray var. aculeata Jepson requires full sun exposure for thriving growth. It cannot sustain in shady areas and needs at least six hours of direct sunlight every day. Lack of sunlight can result in stunted growth and weakened stems.
Temperature Requirements
The plant thrives well in warm, dry, and desert-like conditions. It can tolerate temperature fluctuations typical of arid regions. The ideal temperature range for its growth lies between 60-80°F. This plant is drought tolerant, so long periods of hot weather will not be an issue.
Soil Requirements
Sphaeralcea ambigua Gray var. aculeata Jepson prefers well-draining soil that is sandy or loamy. The soil should have moderate to low fertility, as too much fertility causes leggy growth. Soil with high clay content should be avoided as it does not drain well, and the plant may suffer from root rot. The pH of the soil should range between 6.0 and 8.0.
Cultivation Methods
Sphaeralcea ambigua Gray var. aculeata Jepson, commonly known as desert mallow or apricot mallow, is a drought-tolerant perennial plant native to the arid regions of the Western United States. These plants thrive in warm, dry climates and can grow up to three feet tall and wide, making them ideal for xeriscaping.
When planting, it is essential to choose a location that receives full sun exposure and has well-drained soil. Till the soil to a depth of 12 inches, mix in compost and sand, and plant the seedlings or cuttings at the same level as they were in their previous container.
Watering Needs
Desert mallows are highly drought-tolerant plants and require infrequent watering. Water thoroughly and deeply once every week or when the soil begins to dry out. Avoid overwatering, as it can lead to root rot. It is best to water in the early morning or late evening to minimize water loss to evaporation.
Fertilization
Desert mallow plants do not require regular fertilization. However, adding a slow-release fertilizer during the planting stage can help establish the plants. Alternatively, an all-purpose liquid fertilizer can be applied once per month during the growing season. Be careful not to over-fertilize, as this can cause the plant to become leggy and produce fewer flowers.
Pruning
Pruning desert mallow plants can help promote bushier growth and produce more flowers. It is best to prune back the plant in the early spring before new growth starts. Remove all the dead, diseased, and damaged branches and cut back one-third of the old wood. This helps to rejuvenate the plant and encourage new growth.
Propagation of Sphaeralcea ambigua Gray var. aculeata Jepson
Sphaeralcea ambigua Gray var. aculeata Jepson, commonly known as spiny globemallow, can be propagated through various methods including seeds, cuttings, and division of roots.
Propagation through Seeds
The most common method of propagating spiny globemallow is through seeds. The seeds can be collected from mature dry fruits. After collecting, the seeds should be dried, and stored in a cool place until planting time. Sow the seeds in well-draining soil in the spring or early summer. Ensure that the soil is adequately moistened, and avoid overwatering the plants. The seed germination will take place in two to three weeks.
Propagation through Cuttings
Spiny globemallow can also be propagated through cuttings. Take cuttings in the spring from one-year-old wood, and ensure that the cutting is about 6 inches long with some leaves in it. Cut the leaves down to half of their length, and then dip the bottom end of the cutting in a rooting hormone. Insert the cutting into soil and mist it with water. Keep the soil moist for the first month and avoid direct sunlight. The cuttings will start rooting in 3-4 weeks and can be transplanted to pots after six weeks.
Propagation through Division of Roots
The division of roots method can be used for mature spiny globemallow plants. The best time to divide the root ball is in the early spring when the plant has just started producing new growth. Carefully dig out the plant's root ball, and use a sharp blade to cut it into smaller sections, ensuring each section receives a healthy amount of roots. Replant the divisions in well-draining soil, ensuring they are at the same depth as the parent plant. Water thoroughly and make sure the plants receive adequate sunlight.
Disease and Pest Management for Sphaeralcea ambigua Gray var. aculeata Jepson
Sphaeralcea ambigua Gray var. aculeata Jepson, commonly known as Desert Globemallow, is a hardy plant that is resistant to most pests and diseases. However, there are several common pests and diseases that can affect the plant, causing damage or even death. It is important to identify the symptoms of the diseases and pests early on and take appropriate action to manage them.
Common Diseases
One of the most common diseases that affect Desert Globemallow is root rot. Root rot is typically caused by overwatering or poorly drained soil. The fungus Sclerotinia sclerotiorum is the primary cause of root rot in Desert Globemallow. The fungus can infect the plant’s roots and spread to other parts of the plant, causing wilting, yellowing, stunted growth, and eventually death. To manage root rot, it is important to avoid overwatering and ensure that the plant is growing in well-draining soil. Fungicides can also be used to manage the disease.
Another common disease that can affect Desert Globemallow is powdery mildew. Powdery mildew is a fungal disease that appears as a white coating on the leaves and stems of the plant. The disease can cause the leaves to curl and distort, affecting the plant’s ability to photosynthesize. To manage powdery mildew, it is important to remove infected plant parts, and avoid overhead watering. Fungicides can also be used to manage the disease.
Common Pests
One of the most common pests that attack Desert Globemallow is spider mites. These tiny arachnids feed on the plant’s sap, causing yellowing, wilting, and eventually death of the plant. To manage spider mites, it is important to regularly inspect the plant for signs of infestation, and to use an insecticidal soap or horticultural oil to manage the pests.
Another common pest that can affect Desert Globemallow is aphids. Aphids are small, soft-bodied insects that suck the sap from the plant's leaves, causing them to distort and curl. They can also transmit viral diseases. To manage aphids, it is important to physically remove them from the plant using a strong spray of water. Alternatively, insecticidal soaps or horticultural oils can also be used.
Overall, proper care and management are crucial for keeping Desert Globemallow healthy and free of pests and diseases. Regularly inspecting the plant for symptoms of disease and pests and taking appropriate control measures is key to maintaining the plant's health.
