Cherries are small, round, deep red stone fruit that are typically in season in the UK from around June to July. Depending on the variety, of which there are hundreds, their size and flavour can vary but usually fall into one of two categories: sweet or tart (sour). Sweet cherries are usually eaten as they come, while tart cherries are used more in cooking. The more familiar cherry varieties include the black stone cherry, morello and Spanish cherry. All cherries have a stone in the middle which must be removed before eating or cooking.