Origin
Erysimum cheiranthoides L. ssp. altum Ahti, also known as Tall Wormseed Wallflower, is a member of the Brassicaceae family and is native to northern Europe, including countries such as Sweden, Norway, Finland, and Russia. It has since been introduced to other parts of the world, including North America.
Common Names
Tall Wormseed Wallflower is the most common name for this plant, but it is also known as Wormseed Mustard and Tall Hedge Mustard.
Uses
Although it has not been widely studied, Erysimum cheiranthoides L. ssp. altum Ahti has a history of traditional medicinal use in Europe, especially in Scandinavia. It has been used to treat various ailments such as fevers, digestive disorders, and respiratory illnesses. In addition to its medicinal properties, this plant is also used as a natural insect repellent.
General Appearance
Erysimum cheiranthoides L. ssp. altum Ahti is an erect and herbaceous plant that can grow up to 4 feet tall. Its stems are woody at the base and become more herbaceous towards the top. Its leaves are alternate and lanceolate in shape, with toothed edges. The plant blooms in the spring and summer, producing clusters of small yellow flowers with four petals. Its fruit is a long, slender pod that contains small, black seeds.
Light Requirements
Erysimum cheiranthoides L. ssp. altum Ahti requires full to partial sun exposure for optimal growth. It is essential to provide at least 6 hours of direct sunlight daily to ensure good development.
Temperature Requirements
For the plant to thrive, it needs to be grown in areas with moderate to cold temperatures. Erysimum cheiranthoides L. ssp. altum Ahti has a high cold tolerance, making it possible to grow in areas with temperatures as low as -20C. However, it is vulnerable to damage from extreme heat conditions, and temperatures above 26C should be avoided.
Soil Requirements
Erysimum cheiranthoides L. ssp. altum Ahti grows best in moist and slightly acidic to neutral soils. The soil should be well-draining, and the pH level should be between 6.0 and 7.0. Additionally, it is advisable to add a layer of organic mulch on the soil to keep it moist and improve the nutrient content.
Cultivation
Erysimum cheiranthoides L. ssp. altum Ahti, commonly known as alpine treacle mustard, is a flowering plant that thrives in areas with well-draining soil and full sun exposure. To cultivate this plant effectively, start by preparing the soil surface, removing any unwanted debris, and taking out any weeds that may interfere with germination. It is advisable to plant the seeds in early spring, as that is the time when the soil temperature is warm enough for optimal germination.
Watering needs
After planting, the soil must be kept moist until the seeds germinate, which is usually within two weeks. Once the seedlings have established and their root systems have grown deeper into the soil, watering should be done sparingly. Overwatering can lead to root rot and other diseases that may affect the plant's growth and flowering. It is essential to water at the base of the plant and avoid wetting the leaves, as moisture on the plant's leaves may worsen the situation.
Fertilization
Although Erysimum cheiranthoides L. ssp. altum Ahti is not a heavy feeder, it is essential to fertilize it appropriately for optimal growth and blooming. The application of a balanced fertilizer before planting or during early growth (such as 10-10-10 NPK) can significantly enhance plant growth and productivity. The application of a slow-release fertilizer can provide the plant with steady nutrients over an extended period, thus improving the plant's overall growth and flowering.
Pruning
Pruning is not necessary for Erysimum cheiranthoides L. ssp. altum Ahti, but it is recommended for the vigorous grower to encourage branching and prevent the plant from becoming too leggy. Light pruning of the tips of the stems and removing spent blooms can also help to promote continuous blooming and improve the overall appearance of the plant.
Propagation of Erysimum cheiranthoides L. ssp. altum Ahti
Erysimum cheiranthoides L. ssp. altum Ahti, commonly known as the Northern Wallflower, is a short-lived perennial plant that is native to North America. It is a member of the Brassicaceae family and can grow up to 60 cm tall. Its bright-yellow flowers make it a popular ornamental plant. Here are the propagation methods for this plant:
Seed Propagation
Seed propagation is the most common method for propagating Erysimum cheiranthoides L. ssp. altum Ahti. The ideal time to sow seeds is in the spring or early summer. Before sowing the seeds, soak them in water for several hours to improve their germination rates. After soaking, sow the seeds in a well-draining soil mix. Cover the seeds with a thin layer of soil and keep them moist by misting with water. Germination usually takes around 2-3 weeks. Once the seedlings have grown a few inches tall, they can be transplanted into individual pots or into the garden.
Cuttings Propagation
Cuttings propagation is also possible for Erysimum cheiranthoides L. ssp. altum Ahti. Take 3-4 inch cuttings from the plant's stem during the spring or early summer. Remove the lower leaves and dip the cuttings' ends in rooting hormone. Plant them in a well-draining soil mix and keep them moist. Cover the pot with a plastic bag or place a plastic hood over the cuttings to maintain humidity. The plants should root in approximately 6-8 weeks. Once rooted, they can be transplanted into individual pots or into the garden.
Disease Management
Erysimum cheiranthoides L. ssp. altum Ahti is generally a healthy plant but it is still susceptible to some common diseases such as:
- Black leg: This fungal disease causes wilting, yellowing, and death of the plant. To manage this disease, remove the infected plant parts and destroy them immediately. Avoid planting in areas where there have been cases of black leg in the past.
- Downy mildew: This disease shows as yellowing and stunted growth of the plant. The leaves also produce a white powdery coating. To manage downy mildew, practice good sanitation and avoid overhead watering. Use fungicides if necessary.
- Wirestem: This fungal disease causes discolouration of the stem and wilting of the plant. This disease can be prevented by planting in well-drained soils and avoiding overwatering. Crop rotation can also help in preventing wirestem.
Pest Management
Erysimum cheiranthoides L. ssp. altum Ahti can be affected by several pests. Here are some of the common pests that can affect this plant and how to manage them:
- Aphids: Aphids can cause stunted growth and yellowing of the plant. They also produce a sticky substance called honeydew that attracts ants. To control aphids, use insecticidal soap or neem oil. Encouraging natural predators such as ladybugs can also help in controlling aphids.
- Cabbage loopers: These pests can cause defoliation of the plant. To control cabbage loopers, handpicking can be done. You can also use Bacillus thuringiensis (Bt) insecticide or a combination of insecticidal soap and neem oil.
- Slugs and snails: These pests can cause damage to the plants, especially the young seedlings. To control slugs and snails, use diatomaceous earth, iron phosphate bait, or handpick them. Keeping the garden clean and free of debris can also help in reducing their population.
