Prunus cerasus 'Danube'
Danube is a tart cherry, intended for use in the kitchen, and ideal for cherry pies. However unlike most tart cherries it has a good level of sweetness and can be eaten fresh as well.
The cherries are bright red, with a juicy dark red flesh.
Danube is easy to grow, and ripens about a week ahead of Montmorency.
It grows with a spreading habit, and on older trees the branches become semi-weeping.
Danube is reasonably self-fertile but cropping will be improved if there is another compatible cherry tree nearby - which may be a sweet or sour cherry.
Advice on fruit tree pollination.
Danube was developed in Hungary, and is also known as Erdi Botermo. It is a major commercial sour cherry cultivar in Europe, and accounts for about a third of total production in Hungary.