Overview
Lamiastrum Heister ex Fabr. also known as Yellow Archangel or Dead Nettle is a species of plant from the family Lamiaceae. It is a perennial herbaceous plant that originates from Europe and Western Asia.
Common Names
The plant has several common names like yellow archangel, golden dead nettle, and Lamium galeobdolon. The name “yellow archangel” comes from the yellow color of the leaves and the fact that it is closely related to the “archangel” plant.
Appearance
The leaves of the Lamiastrum Heister ex Fabr. plant are heart-shaped, and the flowers are small and yellow and bloom in late spring to early summer. This plant typically grows up to 60 cm in height and can form dense mats on the ground due to its ability to self-seed and spread via underground stems.
Uses
While the plant has been used for ornamental purposes in some gardens for its bright yellow leaves, it has no known medicinal or culinary use. However, it was traditionally used as a groundcover and to prevent soil erosion due to its spreading nature. It is also used as a companion plant for vegetables like beans and peas due to its ability to attract pollinators and repel pests.
Growth Conditions for Lamiastrum Heister ex Fabr.
Lamiastrum Heister ex Fabr. is a perennial groundcover plant that is native to Europe and North Africa. It is commonly referred to as yellow archangel due to the yellow flowers present on its stems. Here are the ideal growth conditions for this plant:
Light
Lamiastrum Heister ex Fabr. prefers partial shade. It grows well under the canopy of trees or in areas that receive partial sunlight like the edge of a forest. Excessive exposure to sunlight may stunt its growth and cause the leaves to turn yellow.
Temperature
The ideal temperature for growth is between 15-25°C (59-77°F). Temperatures exceeding 30°C (86°F) can cause the plant to wilt. In colder regions, the plant will die back in winter and resprout in spring.
Soil Requirements
Lamiastrum Heister ex Fabr. thrives in moist, well-drained soil that is rich in organic matter. It can tolerate slightly acidic to alkaline soils with a pH ranging from 5.0 to 7.5. The soil should be kept moist but not waterlogged to prevent root rot.
The plant can tolerate drought conditions but may go dormant during this period, and its growth may be stunted. Fertilization should be done annually to maintain healthy growth. A balanced fertilizer that contains equal portions of nitrogen, phosphorus, and potassium should be used.
Cultivation Methods
Lamiastrum Heister ex Fabr. enjoys fertile, well-drained soil. It is best to grow it in full sunlight, though it can also thrive in partial shade. Sow the seeds indoors in early spring and transplant them outside two weeks before the last frost. You can also propagate the plant through division in early spring or autumn. When planting, maintain a distance of 12-15 inches between each plant to allow for proper growth and spread.
Watering Needs
Lamiastrum Heister ex Fabr. requires moderate watering. Always ensure to keep the soil moist, but avoid overwatering since it can cause root rot. Water the plant whenever the soil starts to feel dry to the touch. During hot, dry periods, water the plant more frequently.
Fertilization
Apply a balanced fertilizer to the soil during the growth period. Addition of compost to the soil before planting is also beneficial. Be careful not to over-fertilize since this might cause stunted growth and prevent flowering.
Pruning
To ensure maximum flowering, prune the plant regularly. You can remove the dead flowers and stems, as it encourages the development of new shoots. In early spring, cut back all the old stems to promote new growth. It is best to do trimming after the blooming period to prevent the plant from growing too tall and lanky.
Propagation of Lamiastrum Heister ex Fabr.
Lamiastrum Heister ex Fabr., commonly known as Yellow Archangel, is a perennial plant that can grow up to 30cm in height. It is native to Europe and Asia, but can also be found in North America and other parts of the world. Yellow Archangel can be propagated by various methods which include:
Division
Division involves digging up the plant and dividing it into several smaller plants. This method works well for mature plants that have well-established root systems. Plants should be divided in early spring before new growth begins. Each section should have several shoots with healthy roots. Replant immediately and water well.
Seeds
Yellow Archangel can also be grown from seed. Collect seeds in the fall once the seed capsules have turned brown and dry. Sow the seeds in the spring, covering lightly with soil. If growing from seed, allow 4-6 weeks for seeds to break dormancy before they germinate. Keep soil moist and seedlings should emerge in 2-3 weeks.
Cuttings
Propagation from cuttings is another option. Cuttings can be taken in early spring when new growth emerges. Cut about a 10cm long stem from the parent plant, ensuring there are several leaves on each stem. Remove the lower leaves and dip the cut end of the stem in rooting hormone. Insert the cutting into moistened soil, taking care not to bury the leaves, and cover with a plastic bag or dome to retain moisture. Keep soil moist and cuttings should root within 4-6 weeks.
Propagation of Yellow Archangel can be done by the above-mentioned methods. Care should be taken to ensure proper planting and care of new plants after propagation to ensure their successful growth.
Disease and Pest Management for Lamiastrum Heister ex Fabr. Plant
Lamiastrum Heister ex Fabr., commonly known as yellow archangel, is a hardy perennial plant that can thrive in a variety of growing conditions. However, like any other plant, it is susceptible to various diseases and pests that can affect its health and growth.
Common Diseases Affecting Lamiastrum Heister ex Fabr.
The plant can be affected by several diseases that affect its leaves and stems.
Anthracnose: This fungal disease can cause irregular brown spots or discoloration on the leaves. To manage this disease, remove the infected parts of the plant immediately and apply a fungicide.
Leaf Spot: This fungal infection can cause brown or yellow circular spots on the leaves. Remove the infected leaves as soon as they appear, and keep the plant well-ventilated to prevent the disease from spreading.
Root Rot: Overwatering can lead to root rot, causing the plant to wilt and eventually die. Ensure the soil has proper drainage and avoid watering the plant too much.
Common Pests Affecting Lamiastrum Heister ex Fabr.
Several pests can infest the plant, causing damage to the leaves, flowers, and stems.
Aphids: Aphids are small, pear-shaped insects that suck sap from the plant, causing it to wilt and eventually die. Use insecticidal soap to control aphids and keep the plant healthy.
Spider Mites: These tiny pests can damage the leaves by sucking out their sap, causing them to turn yellow and eventually die. Use insecticidal soap to control spider mites and keep the plant well-watered.
Slugs and Snails: These pests can eat holes in the leaves and create a slimy trail around the plant. Use a slug and snail bait to control their population and protect the plant from damage.
Overall, to keep the Lamiastrum Heister ex Fabr. plant healthy and free from pests and diseases, maintain good plant hygiene, ensure proper watering, fertilization, and sunlight, and monitor the plant regularly for any signs of infestation or disease.
