Give citrus a summer holiday

Now the threat of a late frost is receding you can give tender citrus a summer holiday outside on a sunny patio. Moving lemon trees, calamondin oranges and limes outside rather than keeping them under cover helps them stay healthy as light levels are much higher and there's plenty of fresh air. But get them used to the drop in temperature gradually, leaving them out for a little longer each day until they're used to the new conditions.