Cherries: Nanking
Nanking, or sweet cherries prefer deep, fertile and well-drained soil. They will not thrive on shallow or badly drained sites. As cherries flower early in the year, choose a warm sheltered site, or grow against a south- or south-west facing wall or fence. When frost is forecast, protect the blossom, but uncover it during the day to allow access to pollinating insects. The trees are best planted 15-18' apart.
Cherries: Tart
Tart cherries are less vigorous than sweet cherries, growing to a height and spread of 10-12'. Tart cherries are self-fertile, so they do not need a partner tree to act as a cross-pollinator. They tolerate some shade, making them a suitable choice for fan-training against north facing walls and fences.