Black Sour Cherry season is usually around the middle of July.
English Morello cherries are the most popular cooking cherries in the UK, where they have been grown for over four centuries. English Morello cherry trees also grow well in the United States.
Cherries fall into two categories: sweet cherries and sour or acidic cherries. While some people enjoy eating acidic cherries fresh from the tree, the fruit is more often used for jams, jellies and pies. English Morello cherries are sour cherries, ideal for cooking, jams and even making liquors.