false spiraea

False Spiraea should be watered approximately once a week during the growing season (spring and summer). Water deeply, soaking the soil around the root zone. Allow the soil to dry out between waterings. Reduce watering in winter to every other week or less often. Provide extra water if plants become wilted on a hot day.

False spiraea grows best in full sunlight, with 5 or more hours of daily direct sunlight in order to reach optimal growth and flowering. The best time for sunlight for false spiraea is during the early morning and late afternoon, with protection from the hot afternoon sun. During the summer months, when days are longer and the sunlight more intense, the plant should receive some shade from mid-morning until late afternoon.

False spiraea (Sorbaria grandiflora) should be pruned each year in late winter or early spring. The goal of pruning is to reduce the size and thicken the plant up while maintaining the natural shape of the shrub. To do this, the plant should be cut back by roughly 1-third its height using hand shears. The shrub should also be thinned out to allow for better air circulation and light penetration. Additionally, dead, diseased, or damaged branches should be removed, and if needed, overgrown branches or overcrowded stems should be removed as well. Taking these steps will not only help to improve the overall health and vigor of the shrub, but will also encourage an abundance of large white blooms each summer.