Change the water every second day. Wash and dry basil leaves, freeze them on a flat sheet, and then put them in a ziplock bag. You can also freeze the leaves in an ice tray with water. Blend fresh ...

Now find out how to grow basil indoors with our expert guide. You can grow plenty of other herbs indoors on a windowsill too. Find out how to grow an indoor herb garden for fresh leaves all year ...

look for bright green leaves with no hint of wilting or black spotting. Dried basil retains little of the aroma and flavour of fresh basil, so is of limited use in the kitchen.