Frost blackens soft herbs overnight and stops woody ones growing, so anything left on the plant by then is lost until spring. Hang-drying is the simplest way to carry a summer's herb bed into winter cooking, and it needs nothing beyond string, a bit of airflow and a dry corner out of the sun.

Harvest and Hang-Dry Herbs Before the First Frost

What you need

1 ball garden twine or cotton string
1 pack rubber bands tightens automatically as the stems shrink, where tied string would loosen
4 paper bags one per bunch of a delicate herb, punched with holes for airflow
6 airtight jars for storage once fully dry

Step by step

Cut herb stems in mid-morning once the dew has dried but before the heat of the day, using secateurs on woody types like rosemary and sage or scissors on soft ones like basil and mint. Choose stems that haven't yet flowered for the strongest flavour.
15 min
Rinse only if visibly dirty, then pat completely dry with a cloth — any damp leaf left on a bunch will mould the whole thing.
10 min
Strip the lower leaves from each stem so nothing sits against the string, then gather 5-8 stems into a small bunch — bunches thicker than that dry unevenly in the middle.
10 min
Wrap a rubber band twice around the cut ends, then tie a loop of twine to the band for hanging.
10 min
For delicate leaves such as basil or mint, slide a punched paper bag over the bunch and cinch it at the neck before hanging, to keep dust and light off without trapping moisture.
10 min
Hang the bunches upside down somewhere dark, dry and airy — an airing cupboard, covered porch or shed rafter — spaced apart so air can move around each one.
5 min
Leave for 1-3 weeks depending on the herb and the weather, checking every few days for mould or damp patches.
5 min
Once the leaves crumble easily and the stems snap rather than bend, strip the leaves into an airtight jar and label it with the herb and the date.
15 min

Afterwards

Once dry, strip the leaves off the stems and discard the woody stalks, storing the leaves whole rather than crumbled — crumbling too early loses flavour to the air. Keep jars in a dark cupboard and check after a month for any condensation on the glass, which means moisture got trapped and that batch needs re-drying or using straight away.

Questions

Can I dry herbs in the oven instead?

Yes, on the lowest setting with the door propped open, but hang-drying uses no energy and keeps more flavour — the oven is really for when frost is imminent and there's no time left to air dry.

Which herbs don't hang-dry well?

High-moisture leaves like basil and mint are the trickiest. Bag them as described, or freeze them in oil instead if bunches keep turning mouldy.

How do I know a bunch has finished drying?

Leaves crumble between your fingers and the stem snaps cleanly rather than bending.

Can I still harvest after a light frost?

A light frost only damages soft herbs like basil. Woody herbs such as rosemary, thyme and sage are unaffected and can be cut well into autumn.