Malus encompasses more than fifty species of deciduous trees and shrubs in the rose family, ranging from the towering orchard apples of commerce to compact crabapples grown for their clouds of spring blossom. Native habitats stretch from Central Asia to North America and much of temperate Europe, and the genus has been cultivated and hybridized for millennia. Heights vary widely — from 14 to over 40 feet — and the diversity of form, flower color, and fruit size within the genus is genuinely remarkable.

Apple trees as a group prefer full sun and moist, humus-rich, slightly acidic soil, though they develop reasonable drought tolerance once established. Cold winters and cool summers suit them best; summer humidity increases the risk of scab, fire blight, and powdery mildew, which remain the primary management challenges. Culinary selections often require a compatible pollinator nearby to set fruit well, and many trees are sold grafted, so keeping the graft union above ground is essential. Pruning to open the crown improves air circulation and reduces disease pressure — this is one genus where a little annual attention pays clear dividends.