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Lemongrass

Cymbopogon citratus

Herb

Lemongrass is a tropical grass grown for its fragrant, lemony stalks used extensively in cooking. Its strong citrus scent acts as a natural mosquito and flying insect deterrent, making it a useful companion near outdoor seating and vegetable plots.

Growing Conditions

Sunlight

Full Sun

Water Needs

Moderate

Soil

Rich, well-draining loam; pH 6.0–7.0

Spacing

24–36 inches

Days to Maturity

Harvest stalks from 6 months after planting

Growing Zones

1
2
3
4
5
6
7
8
9
10
11
12
13

Thrives in USDA Zones 9–11

Companion Planting

Good Companions

Keep Away From

No known antagonists

When to Plant

  • Transplant

    Spring after last frost in temperate zones; anytime in tropics

  • Harvest

    Harvest outer stalks when thick as a finger; twist and pull from base

Organic Growing Tips

  • In cool climates, grow in large containers that can be moved indoors before first frost.

  • Divide large clumps every 2–3 years and replant in fresh compost-enriched soil.

  • The essential oil in crushed lemongrass deters mosquitoes and many flying insects naturally.

  • Water regularly during the growing season; reduce watering significantly in autumn as growth slows.

Common Pests

  • Rust
  • Leaf Blight
  • Aphids

All pest management in Garden uses safe, organic, non-toxic methods only. No synthetic pesticides, ever.