Lemongrass Per USDA FoodKeeper
On the counterCounter
Not recommended
keep it cold
In the fridgeFridge
7–9 days
at or below 40°F (4°C)
In the freezerFreezer
6 months
at 0°F; quality, not safety
Quick answer
Yes. Lemongrass lasts 7–9 days in the fridge and 6 months in the freezer. After that, or sooner if stored badly, it spoils: watch for the signs below.
How to tell if lemongrass is bad
Smell
A sour or rotting smell from the bag or bunch.
Texture
Slimy, wet or wilted leaves that do not perk up in cold water.
Colour
Dark green-black or brown leaves.
Mould
Any fuzzy growth — discard the bag.
Lemongrass past the expiration date
Best-by and sell-by
FoodKeeper gives unopened lemongrass 7–9 days in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
Past the date
Lemongrass past its best-by date is usually safe if stored well; check smell, look and taste before using.
How to keep lemongrass fresh longer
- Store dry, wrapped in a paper towel inside a bag or container.
- Keep in the crisper drawer at 40°F (4°C) or below.
- Stand herbs like cilantro and parsley in a glass of water in the fridge, loosely covered.
More about lemongrass
FAQ
How long does it take for lemongrass to go bad?
7–9 days in the fridge, per USDA FoodKeeper.
Can lemongrass expire?
FoodKeeper gives unopened lemongrass 7–9 days in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
What happens if you eat bad lemongrass?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep lemongrass from going bad?
Store dry, wrapped in a paper towel inside a bag or container.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number