How long do fresh herbs last in the fridge?

Most fresh herbs are bought for one specific dish, in a bunch sized for a shop's convenience rather than a recipe's needs, and the leftover two-thirds is what actually decides how the story ends. Roughly speaking: tender leafy herbs like coriander, parsley, dill and basil hold up for anywhere from three days to about a week; hardier ones like rosemary, thyme and sage can go two or three weeks without much trouble. But that range is almost entirely a function of how the herb was stored, not a countdown that starts the moment it enters the house — the same bunch of coriander can be dead in three days or fine after ten, and the difference is rarely the herb.

Why herbs wilt before almost anything else in the fridge

A leaf is mostly water held inside a thin structure with a huge amount of surface area relative to its volume, and that shape is built to lose moisture fast — it is how the plant breathed and cooled itself while it was alive. Cut it from the root and put it in dry, circulating fridge air, and it keeps doing the same thing with nothing coming back in. This is usually not a food-safety problem the way raw chicken going off is; it is closer to dehydration. A herb that looks finished has almost always died of thirst, not of bacteria, which is exactly why the fix has so little to do with the fridge being cold enough and almost everything to do with whether the leaf can hold onto its water.

Two families of herbs, two opposite storage habits

Tender, leafy herbs — coriander, parsley, dill, mint, chives, and delicate stems generally — do best treated like cut flowers rather than like a vegetable. Trim the stem ends, stand the bunch upright in a jar with an inch or two of water, and drape a loose plastic bag over the top before it goes in the fridge. That keeps the leaves hydrated from the cut end the same way they were hydrated when they were still attached to the plant. Basil is the one exception worth knowing: it is genuinely cold-sensitive, and fridge temperatures blacken and wilt the leaves within a day or two through a chilling-injury reaction rather than ordinary staleness. The same jar-of-water method works for basil, but it wants to sit on the counter at room temperature, not in the fridge.

Hardy, woody herbs — rosemary, thyme, sage, oregano, tarragon — have a much lower water content per leaf to begin with, and a structure closer to a small shrub than a lettuce leaf. They do not need the cut-flower treatment. Wrapped loosely in a damp paper towel and kept in a partly open bag or container in the fridge, a bunch of thyme or rosemary can genuinely go weeks before it is unusable, and even then it usually just dries out and loses aroma rather than turning slimy the way tender herbs do.

The mistake that undoes both methods

A herb sealed tightly in its original plastic sleeve, with no airflow and often a little condensation already trapped inside, gets the worst of both problems at once: enough humidity for mould to start on any bruised or damaged leaf, and no airflow to let that dampness go anywhere. This is why herbs bought pre-packed in a sealed bag are so often the ones that turn first — not because the herb itself was worse, but because the packaging that got it home is a poor container for keeping it. Moving it into a loosely closed bag, or the jar-of-water setup, the moment it comes into the house usually buys several extra days for free.

When there is clearly more than one recipe's worth

The realistic outcome for most herb bunches is that a dish needs a tablespoon and the packet holds a cupful, and no amount of correct fridge storage turns that mismatch into zero waste on its own. The move that actually uses up the rest is freezing it in a form that is ready to cook with later, rather than trying to keep it fresh indefinitely. Chopped herbs packed into an ice cube tray and topped up with a little oil or water freeze into exactly the portion a future dish needs, straight into a hot pan with no thawing step. Woody herbs like rosemary and thyme freeze well as whole sprigs in a bag, since their flavour comes through even after freezing changes their texture. Either way, frozen herbs stop being a countdown and become a shelf-stable ingredient you reach for on a random Tuesday, which a fresh bunch sitting in the crisper drawer never quite manages to be.

What actually helps

• Sort by texture, not by name. Soft and leafy wants water and a cool spot; woody and stemmy wants a damp wrap and a loose bag. Treating both the same way shortchanges one of them.
• Basil stays out of the fridge. It is the one common herb where the fridge is actively the wrong answer.
• Get it out of its original sealed bag. Trapped condensation with no airflow is what turns a bruised leaf into a mouldy one.
• Freeze the surplus in oil rather than hoping to eat it fresh. This is the step that actually closes the gap between a bunch sized for a shop and a recipe that needed a third of it.
• Judge it by look and smell, not by the day it was bought. A wilted but still green herb is often fine chopped into something cooked, even past the point where it looks appealing raw.

This is exactly the kind of ingredient that quietly falls through the cracks of most kitchen tracking, because a lone bunch of coriander does not carry an obvious shelf-life number the way milk or meat does. In Munch, each batch is logged with where it is stored and when it went in, shared with everyone in the household, and recipes are grouped by how close they already are to done — so the last third of a bunch of herbs shows up as something specific to use, with a suggestion attached, rather than disappearing into a general impression that there is probably something green in the crisper drawer.

None of this needs to be remembered as a set of exceptions. It comes down to one distinction — soft leaves lose water fast and need it replaced, tough leaves do not and just need to stay out of the way — and everything above, the jar of water, the damp towel, the frozen cubes, is really just that one fact applied to whatever bunch happens to be in the fridge.