How to Grow Sonata Cherries
Sonata cherry trees are self-fruiting, so it isn’t necessary to plant a pollinating variety nearby. However, planting another variety of sweet cherries within 50 feet (15 m.) can result in larger harvests. Sonata cherry trees thrive in rich soil, but they are adaptable to nearly any type of well-drained soil, with the exception of heavy clay or rocky soil. Dig in a generous amount of organic material such as compost, manure, dry grass clippings, or chopped leaves before planting. This is especially important if your soil is nutrient-poor, or if it contains substantial amounts of clay or sand. Established Sonata cherry trees require very little supplemental irrigation unless the weather is dry. In this case, water deeply, using a drip irrigation system or soaker hose, every seven days to two weeks. Trees planted in sandy soil may need more frequent irrigation. Fertilize your cherry trees year, beginning when the trees start to produce fruit, usually three to five years after planting. Apply a general-purpose, balanced fertilizer in early spring or later, but never after July, or midsummer. Cherry trees are light feeders, so be careful not to over-fertilize. Too much fertilizer may produce lush, leafy foliage at the expense of fruit. Prune cherry trees every year in late winter or early spring. Thinning Sonata cherries is beneficial when there are more than 10 tiny cherries per spur. This may seem counterproductive, but thinning reduces branch breakage caused by a too-heavy load and improves fruit quality and size. Cherry tree harvest is generally in early summer, depending on climate and weather conditions.