Your mint outside may be looking straggly and tired, so dig a clump of it up now and repot it for your windowsill, to make real mint sauce with roast lamb or add it to salads, or the first of the early potatoes. When growing it in a pot, separate the healthiest looking roots of the old plant and shake off the soil before replanting the cutting in multipurpose compost and watering regularly.

Soon, fresh new shoots should appear and before long you will have a fine herb to to with the first vegetables of the season.

It's advisable to always grow mint in a pot, even if you place it in a pot in your vegetable patch outside, or it is likely to invade everything around it.