Plant Cornus florida 'Cloud 9' (Flowering Dogwood 'Cloud 9') for classic spring display and four-season interest in a manageable, small-tree size. In spring, you get abundant clusters framed by overlapping white bracts; in fall, the foliage shifts to rusty red tones, followed by bright red fruit that birds readily find. Mature size is typically about 18-22 feet tall with a similar spread, so give it room to develop its layered branching and showy silhouette.
For best performance, place your dogwood in full sun to part shade. In hotter or drier sites, part shade and consistent soil moisture help reduce stress. Choose a well-drained, organically rich soil, and keep the root zone evenly moist during establishment. A 2-4 inch mulch layer helps keep roots cool and conserves moisture; keep mulch pulled back from the trunk.
Once established, this cultivar is low to moderate maintenance. Water during extended dry spells, especially in summer, and avoid heavy pruning; if you need to shape, prune right after flowering. Like many flowering dogwoods, stressed plants can be more prone to issues such as leaf spot, powdery mildew, canker, borers, or dogwood anthracnose, so good siting and steady care are your best prevention.