Origin
Braya humilis (C.A. Mey.) B.L. Robins. var. glabella (Richards.) Boivin, also known as low arctic braya, is a plant species that belongs to the Brassicaceae family. It is native to the Arctic regions of North America, including Alaska, Greenland, and Northern Canada.
Common Names
The plant species Braya humilis var. glabella is commonly referred to as low arctic braya. In some regions, it is also known by other common names such as Arctic rockcress, low northern rockcress, common arctic braya, and small northern rockcress.
Uses
The low arctic braya has been traditionally used by locals in the Arctic regions for various purposes. The leaves of the plant are edible and have a bitter taste. They are used in salads or as a seasoning for meat and fish. Moreover, the plant has been used for medicinal purposes to treat conditions such as colds, coughs, and scurvy due to its high concentrations of vitamin C. In addition, it is used in plant breeding programs to breed hardy and fast-growing crops.
General Appearance
The low arctic braya is a small herbaceous plant that grows up to 10 cm in height. It has small, white to pinkish flowers that bloom between June and August. The plant has a rosette of basal leaves that are oval or spoon-shaped. The leaves are dark green and have a waxy texture to protect them from extreme cold temperatures. The stem of the plant is usually short and is covered by fine hairs. The roots are relatively shallow and do not penetrate deep into the soil.
Light Requirements
Braya humilis var. glabella requires a moderate amount of sunlight to thrive. It is best suited to grow in areas that receive partial shade and are protected from intense sunlight. Full sun exposure for prolonged periods can damage the leaves and negatively affect growth.
Temperature Requirements
This plant is adapted to cold environments and can withstand freezing temperatures. It grows best in temperatures between 0-20°C (32-68°F) and can tolerate summer temperatures of up to 25°C (77°F), but higher temperatures can cause stress, and growth may be stunted.
Soil Requirements
Braya humilis var. glabella prefers well-draining soils that are slightly acidic, with a pH range between 5.5 and 6.5. The soil should be rich in nutrients and have a high water holding capacity to ensure that the plant receives enough moisture even in dry spells. Sandy loam soils are ideal for the growth of Braya humilis var. glabella as they provide good drainage and aeration.
Cultivation Methods
Braya humilis (C.A. Mey.) B.L. Robins. var. glabella (Richards.) Boivin, commonly known as the Nunavut rockcress, is a delicate plant that requires specific conditions to grow adequately. This plant thrives in regions with short growing seasons and low temperatures such as the arctic tundra. If you intend to cultivate Braya humilis var. glabella, you need to create conditions that mimic its natural environment. The plant requires alkaline and well-draining soil. Mix the soil with gravel or coarse sand to enhance drainage abilities. Plant the seeds in early spring or late summer, ensuring that they are planted shallowly, preferably a depth of 2-3mm.
Watering Needs
Braya humilis var. glabella requires consistent moisture levels to grow healthily. Ensure that the soil is moist but not waterlogged. Water the plant in the morning to prevent water retention, which can lead to root rot. During the summer months, you may need to increase the frequency of watering, especially during extended periods of drought. Avoid using hard water to irrigate Braya humilis var. glabella since it can affect the plant's growth and health.
Fertilization
Braya humilis var. glabella requires minimal fertilizer application to thrive well. Apply a slow-release fertilizer at the beginning of the growing season to provide the plant with adequate nutrients. Inorganic fertilizers are ideal for this plant since they release vital nutrients over an extended period. Also, use fertilizers that are rich in potassium and phosphorus since the plant requires these nutrients for healthy foliage and flower development.
Pruning
Pruning is not mandatory for Braya humilis var. glabella since it has limited growth. However, you can deadhead the flowers once they have withered to encourage the growth of new blooms. Remove any dried or diseased foliage to enhance the overall appearance of the plant.
Propagation of Braya humilis var. glabella
There are several methods for propagating Braya humilis var. glabella. Some of the common methods are:
1. Seed propagation
The plant can be propagated through seeds. After the flowering season, collect the seeds from the plant and store them in a cool, dry place. When the time is right, sow the seeds in a sandy soil mixture. Keep the soil moist until the seeds germinate, which can take a few weeks to several months.
2. Stem cuttings
The plant can also be propagated using stem cuttings. Take cuttings from the plant during the growing season, and ensure that the cutting has a node (a bump on the stem from which leaves grow). Dip the cut end of the stem in rooting hormone, and plant it in a sandy soil mixture. Keep the soil moist until the cutting establishes roots.
3. Division
Another method of propagating the plant is through division. Carefully remove the plant from the soil, and gently tease apart the roots. Each section should have a portion of the stem and roots. Replant the divided sections in a new pot with fresh soil.
Propagation can be a fun and rewarding process, and Braya humilis var. glabella can be propagated using any of these methods.
Disease Management
Braya humilis (C.A. Mey.) B.L. Robins. var. glabella (Richards.) Boivin is a relatively hardy plant that is not prone to many diseases. However, the plant may be susceptible to fungal and bacterial infections in humid environments or if it is overwatered.
To manage fungal and bacterial infections, it is essential to promote good air circulation around the plant. Providing adequate spacing between plants and ensuring that the plant receives enough sunlight can also help control fungal and bacterial infections. If the plant is showing signs of infection, you can use an organic fungicide such as copper-based products to manage the problem.
Pest Management
Braya humilis (C.A. Mey.) B.L. Robins. var. glabella (Richards.) Boivin is not commonly attacked by pests. However, it is susceptible to infestation by aphids, which can cause significant damage to the plant.
Aphids can be controlled using several methods. One way to manage the problem is by using beneficial insects that prey on aphids, such as ladybugs and lacewings. You can also control aphids by spraying the plant with a mixture of water and organic insecticidal soap. However, it is crucial to avoid spraying the plant during hot and dry weather conditions, as this can damage the plant's foliage.
