Flowering crabapple. One of most spectacular flowering trees, one of the briefest shows, generally adaptable but doesnt do well in driest climates. USDA zones: 3 to 9, depending on variety Water requirement: Moderate Light requirement: Full sun Mature size: Up to 25 ft tall & wide--dwarf varieties may be one third that size Growing tips: soil well drained and kept moist. Follow the pruning directions for your specific variety.