Growing Lemongrass in Zone 4B

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

Zone 4B has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.

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

About Zone 4B

USDA Hardiness Zone 4B has an average last spring frost around May 1 and first fall frost around Oct 1. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.