Lemongrass is a fragrant, fast-growing herb known for its citrusy aroma and culinary versatility. Growing lemongrass indoors ensures a steady supply of fresh stalks for teas, soups, and stir-fries while also serving as a natural air freshener.
1. Best Lemongrass Varieties for Indoor Growing
Cymbopogon citratus (West Indian Lemongrass) – The most common variety for cooking, with a strong citrus scent.
Cymbopogon flexuosus (East Indian Lemongrass) – Typically used for essential oils and herbal remedies.
2. Best Growing Conditions for Indoor Lemongrass
Light Requirements
Lemongrass requires 6–8 hours of bright, direct sunlight daily. A south-facing window is ideal, but grow lights can supplement light in low-light spaces.
Temperature and Humidity
Lemongrass thrives in warm temperatures between 65–85°F (18–29°C) and prefers high humidity. Misting the plant or placing a water tray nearby can help maintain moisture.
Choosing the Right Pot and Soil
Use a deep container with drainage holes, as lemongrass develops long roots. A light, loamy soil mix with compost or sand ensures proper drainage.
3. Watering and Fertilizing Indoor Lemongrass
How Often to Water
Water lemongrass when the top inch of soil is dry. It prefers consistently moist soil but should never sit in standing water.
Fertilizing for Healthy Growth
Feed lemongrass with a balanced organic fertilizer every 4–6 weeks during active growth. A nitrogen-rich fertilizer helps promote lush leaves.
4. Pruning and Harvesting Lemongrass
How to Prune Lemongrass
Trim back outer leaves to encourage new shoots. Remove any brown or dry leaves to keep the plant healthy.
Harvesting Lemongrass Stalks
Cut stalks when they reach 12–18 inches tall, snipping them at the base for the most flavor. Fresh leaves can also be used for tea or dried for later use.
5. Common Indoor Lemongrass Problems and Solutions
Brown Leaf Tips
Cause: Low humidity or inconsistent watering.
Fix: Increase humidity and keep the soil evenly moist.
Slow Growth
Cause: Insufficient light or lack of nutrients.
Fix: Move to a brighter location and fertilize lightly.
Yellowing Leaves
Cause: Overwatering or poor drainage.
Fix: Improve soil drainage and allow soil to dry slightly between waterings.
6. Creative Ways to Use Fresh Lemongrass
Cooking: Essential in Thai, Vietnamese, and Indian cuisine.
Herbal Tea: Brew fresh stalks for a calming, citrus-infused tea.
Aromatherapy: Fresh leaves release a natural, refreshing scent.
Mosquito Repellent: Lemongrass contains citronella, which helps repel insects naturally.
Final Thoughts
Lemongrass is an easy-to-grow, aromatic herb that thrives indoors with warm temperatures, regular watering, and bright light. Whether used in cooking, tea, or natural remedies, fresh lemongrass brings flavor, fragrance, and health benefits to any home.