Lemongrass - Citronella

Citronella or Lemon Grass

Citronella, also known as lemon grass, is an aromatic tropical grass that has earned its place in gardens, kitchens, and natural medicine cabinets around the world. This remarkable plant combines practical benefits with easy cultivation, making it an ideal choice for both beginner and experienced growers.

What is Citronella

Citronella (Cymbopogon) is a perennial grass from the Poaceae family, native to tropical regions of Asia. It forms dense tufts of long, narrow leaves that can reach heights of 1-2 meters. The plant is characterized by its distinctive lemon scent, which comes from essential oils contained in its leaves and stems.

The most commonly cultivated species include:

Cymbopogon citratus – East Indian lemon grass, used mainly in cooking
Cymbopogon nardus – Ceylon citronella, grown for essential oil production
Cymbopogon winterianus – Java citronella, with the highest citronellal content

Uses of Citronella

In the Kitchen

Lemon grass is an indispensable ingredient in Asian cuisine, especially Thai, Vietnamese, and Indian. The lower, white parts of the stems have the most intense flavor and are used fresh, dried, or frozen. Citronella adds a distinctive lemon flavor to soups, curries, teas, and marinades.

As a Natural Repellent

Citronella is known for its ability to repel mosquitoes and other insects. Essential oil from citronella is a common ingredient in natural insect repellents, candles, and outdoor sprays. Growing citronella plants on patios or around seating areas can naturally help reduce the presence of unwanted insects.

In Natural Medicine

In traditional medicine, citronella is used for its antibacterial, antifungal, and anti-inflammatory properties. Citronella tea is known to support digestion, help reduce fever, and have a calming effect. Essential oil is used in aromatherapy to relieve stress and improve mood.

Growing Citronella

Location and Soil

Citronella thrives in sunny to partially shaded locations with well-drained, nutrient-rich soil. It prefers slightly acidic to neutral pH (6.0-7.0). The plant requires plenty of warmth and doesn't tolerate frost, so in temperate climates it's often grown in containers that can be moved indoors for winter.

Watering and Fertilizing

Regular watering is key to successful citronella cultivation. The soil should be kept consistently moist but not waterlogged. During the growing season (spring to autumn), it's recommended to fertilize every 2-3 weeks with a balanced liquid fertilizer or use slow-release organic fertilizers.

Propagation

Citronella is most commonly propagated by dividing mature clumps. In spring, older plants can be carefully dug up and divided into smaller sections, each with roots and shoots. Another option is growing from seed, though this method is slower and less reliable.

Harvesting and Storage

Citronella leaves can be harvested throughout the growing season. For the most intense flavor, it's best to harvest in the morning after dew has dried. Cut stems near the base – the plant will continue to produce new growth.

Fresh leaves can be stored in the refrigerator for up to two weeks. For longer storage, citronella can be frozen or dried. When drying, hang stems in bundles in a shaded, well-ventilated area.

Common Problems and Solutions

While citronella is relatively hardy, it can be affected by several issues:

Spider mites – often appear in dry conditions; increase humidity and rinse leaves with water
Leaf browning – usually indicates insufficient watering or low humidity
Slow growth – may signal lack of nutrients or insufficient light
Root rot – caused by overwatering; improve drainage and reduce watering frequency

Citronella in Container Growing

Container cultivation is ideal for areas with cold winters. Choose a container with a minimum diameter of 30 cm and ensure adequate drainage. Use quality potting mix enriched with compost. During winter, move containers to a bright, frost-free location with temperatures between 10-15°C.

Citronella is a versatile plant that brings benefits on multiple levels – from the kitchen to natural health care to garden aesthetics. Its easy cultivation and minimal maintenance requirements make it an excellent choice for anyone wanting to enrich their home or garden with a useful and aromatic plant.

Lemongrass (Cymbopogon citratus) is well known to many people from Southeast Asian cuisines, where it is widely used and abundant. This plant can also be found in many perfumes and cleaning products, lending them a fresh, pleasant lemony aroma. It is also known as citronella.

Lemongrass is also useful from a medicinal perspective. It has antibacterial properties, and as a tea made from dried leaves, it increases perspiration, which is beneficial for colds and flu. This helps cleanse the body of impurities and aids in overall detoxification. It can also be used in the form of tea for digestive disorders and stomach aches. In smaller doses, it is suitable for children as well. It can also be used in the form of oil.

Lemongrass has little in common with citrus fruits - it belongs to the grass family and is therefore related to bamboo, corn, rice and other cereals. The name is derived from the plant's intense lemony fragrance.

Growing Lemongrass

Lemongrass is undemanding to grow. It prefers direct sunlight and a location sheltered from wind. The soil should be nutritious, slightly moist, and well-draining. It grows vigorously and can reach heights of up to 60 cm. Lemongrass requires space of approximately 80 cm, so it should have a pot with a diameter and depth of at least 50 cm. The blue-green, light, slightly curled leaves can reach lengths of up to 90 cm. If this aromatic plant becomes too large, you can divide it in spring.

At the end of summer/beginning of autumn, small, inconspicuous flowers appear. Before the first frosts arrive, lemongrass must be moved indoors, as it is not frost-hardy. During this period, water less frequently. In spring, after the last frosts, the grass can be moved outside again.

Lemongrass in the Kitchen

Only the lower parts of the leaves are used in cooking. Cut the lemongrass stalks directly above the soil and remove the leaves. This leaves us with a thick stalk about 10-15 cm long. Peel this and cut or crush the white interior into small pieces. The stalk can also be used whole - in this case, bruise it until soft and cook it together with other ingredients. Young shoots are always the most flavorful. Older, woodier parts should be removed before consumption.