Hydrangea flowering shrubs in #3 (3-gallon) nursery containers. These popular garden shrubs typically grow 3-5 feet tall and wide, producing large, showy flower clusters in summer. Hydrangeas are hardy deciduous shrubs that thrive in partial shade to full sun, preferring well-drained soil with consistent moisture. They bloom on new or old wood depending on variety, with flowers that may change color based on soil pH. Suitable for USDA hardiness zones 3-9 depending on variety. These container-grown plants are ready for transplanting into garden beds or larger containers.