Panicle hydrangeas are the most sun tolerant hydrangeas and are also resistant to wilting. In cooler climates, full sun is recommended for best stem strength and flower set. Flower color is unaffected by soil chemistry. If flowers turn brown and dry instead of aging to pink or red, this indicates that the plant needs more water or that nighttime temperatures are too high for the transition to occur.

In late winter or early spring, cut back by about one-third its total height, just above a set of large buds. This ensures that the growth for the season will come vigorous buds lower on the plant and also serves to remove any remaining dried blooms. Alternatively, cut back in autumn once the plant has gone completely dormant. May be cut back harder if desired, though this tends to produce stems that are unable to achieve maximum stem strength the following season.