Origin and Common Names
Plagiobothrys figuratus (Piper) I.M. Johnston ex M.E. Peck ssp. corallicarpus (Piper) Chambers is a plant species that is native to California, Oregon, and Washington in the United States. It belongs to the Boraginaceae family, which also includes forget-me-nots and borage. The plant is commonly known as coral carpet popcornflower or dwarf white popcornflower.
General Appearance
Coral carpet popcornflower grows up to 10 centimeters tall and thrives in sandy soil environments. Its leaves are narrow and hairy, and its flowers bloom from March to June, producing small white or pink blooms with five petals. The flowers have yellow anthers and grow in clusters along the stem. The plant's fruit resembles a small, coral-red popcorn kernel and is covered in tiny hairs.
Uses
The entire plant is edible, from the leaves to the flowers, and is often used in salads or as a garnish. It is also used as a natural dye for fabric. The indigenous peoples of California have used the plant medicinally for treating wounds and as a remedy for colds and respiratory illnesses. Today, coral carpet popcornflower is often cultivated as an ornamental plant, appreciated for its charming, delicate appearance and vibrant-colored fruit.
Light Requirements
Plagiobothrys figuratus ssp. corallicarpus prefers full sun exposure for optimal growth. It can also grow well in partially shaded areas but might not flower as abundantly. The plant should receive at least six hours of sunlight per day.
Temperature Requirements
Plagiobothrys figuratus ssp. corallicarpus grows well in temperatures ranging from 10°C to 35°C (50°F to 95°F). However, it is known to grow best in warm temperatures between 20°C to 25°C (68°F to 77°F).
Soil Requirements
The plant prefers a well-draining, sandy loam soil with a neutral to slightly alkaline pH ranging from 6.5 to 7.5. It can tolerate somewhat salty soils but prefers non-saline soils. The plant can grow in various soil types, but a well-draining soil is critical to avoid waterlogging. Adequate drainage is essential to prevent the occurrence of root rot, which can kill the plant.
Cultivation Methods for Plagiobothrys figuratus ssp. corallicarpus
Plagiobothrys figuratus ssp. corallicarpus commonly referred to as "coral beardtongue" is easy to cultivate and is an excellent plant for beginners. The plant grows best in full sun and well-draining soil. It is advisable to plant the coral beardtongue during the cool months of the year when the temperature is mild.
Watering Needs for Plagiobothrys figuratus ssp. corallicarpus
For the plant to thrive, it needs moderate watering. When newly planted, water the coral beardtongue regularly to help establish a deep root system. After that, watering can decrease to once every two to three weeks. Take care not to overwater the plant as it can lead to rotting.
Fertilization of Plagiobothrys figuratus ssp. corallicarpus
A quality fertilizer can increase the growth and flowering of the coral beardtongue. Apply a balanced, slow-release fertilizer to the plant in early spring before the onset of new growth. An additional feeding during summer can enhance the plant's vitality. Only use the recommended amount of fertilizer, and ensure it is mixed correctly.
Pruning Plagiobothrys figuratus ssp. corallicarpus
Pruning is not strictly necessary for Plagiobothrys figuratus ssp. corallicarpus plant. However, removing dead or diseased stems or trimming back overgrown stems can help to promote optimal health, and encourage bushier growth. Cut the plant back to a third of its height in autumn to encourage a rounder shape.
Propagation of Plagiobothrys figuratus ssp. corallicarpus
Plagiobothrys figuratus ssp. corallicarpus is usually propagated from seeds, which can be collected from the plant's dried fruits. The process of seed collection should be done by mid-summer, once the fruit has matured and has turned brown. The easiest way to collect it is by handpicking the fruits from the plant.
Once the seeds have been collected, they can be sown directly into the ground or a growing container. If you opt to plant the seeds directly in the ground, it is advisable to wait until the fall, when the weather cools down, and the seeds can slowly germinate over the winter. Alternatively, if you prefer to start the plants indoors, you should plant the seeds in the spring, usually around March or April.
When planting the seeds in a container, you should fill it with a suitable soil mix, such as a peat-based mix combined with perlite or vermiculite. Afterward, you can sprinkle the seeds on top of the soil mix and lightly cover them with additional soil. The container should be placed in a warm and bright area, with frequent watering to keep the soil moist.
It is worth noting that germination rates for Plagiobothrys figuratus ssp. corallicarpus seeds can be low, so do not get discouraged if only a few of them germinate. Once the seedlings have emerged, they should be thinned or transplanted to ensure that there is enough space for each plant to grow and develop.
Disease Management
Plagiobothrys figuratus ssp. corallicarpus is a relatively hardy plant that is not often affected by diseases. However, if the plant is grown in conditions that are too moist, it may be susceptible to fungal diseases such as root rot or powdery mildew. It is important to water the plant only when the topsoil is dry to the touch, and to provide good ventilation in the growing area to prevent fungal growth. If fungal growth is suspected, remove infected leaves and reduce watering frequency until the infection is under control.
Pest Management
While Plagiobothrys figuratus ssp. corallicarpus is generally pest-resistant, there are a few pests that may cause damage if not properly managed. Spider mites and aphids are the most common pests that may affect this plant. Spider mites can be controlled by increasing humidity levels around the plant or by using insecticidal soap. Aphids can be removed with a strong stream of water or by using a neem oil spray. To prevent infestations, inspect plants regularly and remove any pests as soon as they are spotted.
