🌿 When to Plant Lemongrass

🌿 Herb
Warm Season

Tropical perennial; grow as annual in zones below 9. Start indoors early

📅 Planting Calendar by USDA Zone

Select your zone to highlight your exact planting dates. Dates are calculated from each zone's average frost dates.

Find my zone
Zone Last Frost Start Indoors Transplant Direct Sow
Zone 2A May 30 Apr 4 Jun 13
Zone 3B May 15 Mar 20 May 29
Zone 4A May 8 Mar 13 May 22
Zone 4B May 1 Mar 6 May 15
Zone 5A Apr 25 Feb 28 May 9
Zone 5B Apr 18 Feb 21 May 2
Zone 6A Apr 21 Feb 24 May 5
Zone 6B Apr 10 Feb 13 Apr 24
Zone 7A Apr 5 Feb 8 Apr 19
Zone 7B Mar 28 Jan 31 Apr 11
Zone 8A Mar 20 Jan 23 Apr 3
Zone 8B Mar 12 Jan 15 Mar 26
Zone 9A Feb 28 Jan 3 Mar 14
Zone 9B Feb 15 Dec 21 Mar 1
Zone 10A Feb 1 Dec 7 Feb 15
Zone 10B Jan 15 Nov 20 Jan 29
Zone 11A Jan 1 Nov 6 Jan 15

Lemongrass is a tropical herb that grows as an annual in most US zones. Essential for Thai and Vietnamese cuisine.

Top Growing Tips

  • Perennial only in zones 9-11 — grow as annual or in pots elsewhere
  • Start from stalks bought at an Asian grocery store — root in water
  • Needs full sun and regular water
  • Bring indoors before frost in cold zones
  • Grows 3-5 feet tall — give it space

Companion Planting

Good companions: tomatoes, peppers (deters pests with its scent)

Avoid planting near: none in particular

Harvest Timeline

Cut stalks at base when they’re pencil-thick or larger