Cymbopogon citratus, commonly known as lemongrass, is a perennial plant in the Poaceae family. Native to tropical regions of Asia, it is widely cultivated for its aromatic leaves and stalks, which are used in cooking, herbal teas, and essential oils. The plant thrives in wet tropical climates and can grow up to 1.5 meters tall.
Lemongrass requires bright, direct sunlight for optimal growth and prefers moderate temperatures. It thrives in high humidity and should be watered regularly to keep the soil evenly moist. Ensure good air circulation to prevent fungal diseases.
收成
Cymbopogon citratus, commonly known as lemongrass, should be harvested when the stalks are at least 12 inches tall and about half an inch thick, typically around 4 to 8 months after planting. To harvest, cut the stalks close to the base using a sharp knife or shears. It is best to harvest in the morning when the essential oil content is highest. Ensure to leave some stalks behind to allow the plant to continue growing. Regular harvesting encourages new growth and maintains the plant's health.
土壤
Lemongrass prefers well-draining loamy soil that retains moisture but does not become waterlogged. A mix of garden soil, compost, and sand can provide the ideal growing medium. Ensure the soil is rich in organic matter to support healthy growth.
肥料
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize every 4-6 weeks during the growing season to provide essential nutrients. Avoid over-fertilizing, as this can lead to excessive leaf growth at the expense of essential oils.
换盆
Repot lemongrass every 1-2 years or when the plant outgrows its container. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Gently remove the plant from its old pot, shake off excess soil, and place it in the new pot with fresh soil mix.
传播
Lemongrass can be propagated by division or from cuttings. The best time to propagate is during the growing season. For division, separate the clumps and replant them in individual pots. For cuttings, take a healthy stalk, remove the lower leaves, and place it in water until roots develop before planting in soil.
修剪
Prune lemongrass regularly to remove dead or damaged leaves and to encourage new growth. Cut back the plant to about 6 inches above the ground at the end of the growing season to promote healthy regrowth in the next season.
毒性
Lemongrass is generally non-toxic to pets and humans. However, excessive consumption of lemongrass oil can cause gastrointestinal issues. It is always best to use lemongrass in moderation.
额外的
Lemongrass can be grown both indoors and outdoors. When growing indoors, place the plant near a sunny window to ensure it receives adequate light. Regularly mist the plant to maintain humidity levels. Outdoors, lemongrass can be planted in garden beds or large containers.