key growing information

Growing Lemon Grass (East Indian) From Seed

How to grow lemongrass from seed: surface sowing, warmth for germination, transplanting clumps, spacing, overwintering and harvest.
By Hensley’s Seed Co.

East Indian Lemon Grass - Key Growing Information

Container planting of East Indian lemon grass (Cymbopogon flexuosus), grown from cleaned seed.

DAYS TO GERMINATION:

Usually 7–14 days.

SOWING:

Transplants are recommended. Scatter seed on the surface and press it in or barely cover it, since light helps it germinate. Water lightly and cover with a dome or similar to hold moisture, adding bottom heat if you have it. Hold the soil near 68°F (20°C) until seedlings appear, or use 68°F (20°C) at night and 86°F (30°C) by day, and avoid overwatering. Move clumps into larger cells and keep them warm until all frost risk is over. Once the soil stays at 45°F (7°C) or warmer, plant 3–4" seedlings out as clumps or single plants, 8–12" apart in rows 18" apart, and keep them watered and weeded. Lemongrass can't take frost and seldom flowers when grown as an annual. In fall, dig and divide clumps to pot up indoors over winter, or simply start fresh plants each spring.

LIGHT PREFERENCE:

Full sun.

SOIL REQUIREMENTS:

Average to moist soil.

PLANT HEIGHT:

Grows about 18–48" tall.

PLANT SPACING:

Set plants 8–12" apart, with 18" between rows.

HARDINESS ZONES:

Hardy in Zones 9–11.

HARVEST:

Cut leaf stalks from the outer edge of the clump for cooking or tea, starting any time once clumps are established and growing strongly. Use fresh or dried; to dry, spread them somewhere warm and airy out of direct sun.

SCIENTIFIC NAME:

Cymbopogon flexuosus

Source and attribution

Migrated library resource. Original named people, organizations, research, and factual provenance are retained.