How to Grow East Indian Lemongrass
iNaturalist
East Indian Lemongrass
Cymbopogon flexuosus
herbEast Indian lemongrass is a perennial grass native to India with tall, slender, fragrant blades that release a strong lemon aroma when crushed. It is prized in Asian cuisine, herbal medicine, and aromatherapy for its essential oils and fresh citrus flavor. The plant forms dense clumps of foliage and produces delicate flowering spikes.
When should you plant East Indian Lemongrass in your zone?
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Example East Indian Lemongrass timeline · Pittsburgh, PA (Zone 6b)
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Plant East Indian Lemongrass
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest East Indian Lemongrass
Around Jul 16≈ 90 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9-11; can be grown as an annual or container plant in cooler zones
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Seedling
2-3 weeksTiny grass-like shoots emerge from soil, developing first true leaves within 1-2 weeks
Keep soil consistently moist but not soggy. Provide bright light and protect from wind. Thin seedlings to appropriate spacing.
Vegetative Growth
6-8 weeksPlant develops multiple shoots and expands into a dense clump; foliage grows 2-3 feet tall with long, thin blade-like leaves
Water regularly and fertilize bi-weekly with balanced or nitrogen-rich fertilizer. Remove any dead leaves. Pinch back tips to encourage bushier growth.
Established Clump
Ongoing (several months to years)Plant reaches full size with many productive shoots; can begin light harvesting while plant continues growing
Continue regular watering and monthly fertilization. Harvest outer leaves consistently to encourage new growth. Remove any flowering stems if foliage production is the goal.
Flowering
4-6 weeksPlant sends up flowering spikes with delicate whitish or purplish flowers; occurs in late summer/fall in ideal conditions
Flowering diverts energy from foliage. Remove flower spikes if you want maximum leaf production. Allow some to flower for seed production if desired.
Dormancy/Winter
3-4 monthsIn cooler zones, above-ground foliage dies back; in warm zones, plant remains semi-dormant with minimal growth
Reduce watering significantly. In zones 9-10, cut back dead foliage to 2-3 inches. Protect from frost or move container indoors. Resume watering and feeding in spring.
Common Pests
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Spray with water to dislodge; use neem oil or insecticidal soap if severe. Increase humidity around plant.
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Remove by hand with alcohol-soaked cloth; apply neem oil or horticultural oil weekly until resolved.
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Scrape off manually; treat with horticultural oil or neem oil. Prune heavily infested stems.
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Remove affected leaves; improve air circulation and reduce leaf wetness. Apply copper fungicide if widespread.
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Improve drainage; reduce watering frequency. Repot in fresh, well-draining soil if container-grown. May require fungicide treatment.
Uses
Asian Cuisine & Beverages
CulinaryThe tender white base is sliced thin and used fresh in Thai, Vietnamese, and Indian cooking for curries, soups, stir-fries, and seafood dishes. Dried leaves make fragrant herbal tea with a refreshing citrus flavor. [source]
Herbal Medicine & Wellness
MedicinalRich in citral and geranial compounds, lemongrass tea is traditionally used to aid digestion, reduce inflammation, improve sleep quality, and support immune function. Used in Ayurvedic and traditional Asian medicine. [source]
Essential Oils & Aromatherapy
HouseholdThe aromatic essential oil is extracted for use in diffusers, soaps, perfumes, and cleaning products. Offers calming, uplifting properties and natural insect-repellent qualities. [source]
Natural Dyes & Crafts
CraftDried lemongrass can be used to create natural yellow and green dyes for textiles and yarns. Bundles are also used in dried floral arrangements and potpourri. [source]
Pollinator Support
WildlifeWhen allowed to flower, lemongrass attracts bees, butterflies, and beneficial insects with its delicate blossoms, supporting pollinator populations in the garden. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Begin light harvesting once plant is established (8-12 weeks from transplant). Harvest outer stems by cutting 1 inch above soil level; the plant will regenerate. Harvest in morning for best flavor and aroma. For culinary use, use the white and light green base of the stem (bottom 4-6 inches); discard the tough, fibrous upper portions. Can be harvested continuously throughout the growing season. In zones 9-10, extend harvest through mild winters. Dry leaves for tea by hanging in bundles or using a dehydrator at low temperature (95-105°F).
Fun Facts
- 🌱 East Indian lemongrass (Cymbopogon flexuosus) is distinct from West Indian lemongrass (Cymbopogon citratus); the East Indian variety has higher citral content in its essential oil, making it more potent for medicinal and aromatic applications.
- 🌱 Lemongrass is a traditional insect repellent in Southeast Asia; the essential oil can repel mosquitoes, flies, and other pests, making it valuable for both personal use and garden pest management.
- 🌱 A single mature plant can be harvested repeatedly for 3-5 years, producing fresh stems continuously. In tropical climates, it can become invasive if not managed, spreading through rhizomes.
Gardening Terms
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