Lemongrass

Cymbopogon citratus

herb

verifiedReviewed by the GreenScout Team

A tropical, clumping grass with long, blade-like leaves and a strong lemon fragrance, growing 3–6 feet tall. The white base and lower stems are prized in Asian cuisine for their citrusy flavor and are used in teas, curries, and soups. In cold climates, lemongrass is grown as an annual or potted tender perennial brought indoors for winter.

Common Problems

Select the problem your Lemongrass is experiencing to get a treatment guide.

warning

Yellow Leaveschevron_right

local_fire_department

Brown Tipschevron_right

hourglass_bottom

Slow Growthchevron_right

water_drop

Underwateringchevron_right

Care Guide

light_mode

Light

Full sun; requires 6–8 hours of direct sunlight daily for best growth and flavor.

water_drop

Water

Water regularly to keep soil moist but well-draining; reduce watering in winter if growing indoors.

compost

Soil

Well-draining, fertile soil; sandy loam or potting mix enriched with organic matter works well. pH 6.0–7.0.

science

Fertiliser

Feed monthly during growing season with balanced fertilizer (10-10-10) or fish emulsion to promote leaf and stem growth.

thermometer

Temperature

Tropical plant; thrives at 70–85°F; dies back at 50°F and is killed by frost below 32°F.

humidity_percentage

Humidity

Moderate to high humidity preferred; tolerates drier conditions but grows lush in humid environments.

Toxicity

check_circleSafe for Catscheck_circleSafe for Dogscheck_circleSafe for Children

Non-toxic; all parts are edible and safe for consumption.

Common Diseases

grainLeaf Spotchevron_right filter_dramaRoot Rotchevron_right

Common Pests

pest_controlSpider Miteschevron_right coronavirusMealybugschevron_right hiveScale Insectschevron_right

Seasonal Care

local_floristspring

Resume regular watering and feeding as growth picks up.

light_modesummer

Peak growing season. Water and feed regularly.

ecoautumn

Reduce watering as growth slows. Stop heavy feeding.

ac_unitwinter

Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Which part of Lemongrass do I actually use in cooking?

The white base and lower stems are prized for their citrusy flavor in Asian cuisine — they're what gets used in teas, curries, and soups, while the tough upper blades are usually discarded or used for infusing.

Can I overwinter my Lemongrass indoors?

Yes — in cold climates it's grown as an annual or as a potted tender perennial brought indoors for winter, since it dies back at 50°F and is killed by frost below 32°F.