panicle hydrangea

Panicle hydrangeas should be watered deeply and thoroughly about once a week during the spring and summer. In hotter climates, and during dry spells, they may need to be watered more often. During winter months, they should be watered only when the soil feels dry to the touch. Be careful to not overwater panicle hydrangeas, as too much water can cause them to droop and can even lead to root rot.

Panicle hydrangeas (Hydrangea paniculata 'Bombshell') thrive in full sun (4-6 hours of direct sunlight daily) but can also tolerate partial shade. The best growing conditions are in an area that receives partial morning shade and partial afternoon sun. When the plant is in full sun, it can become scorched and/or stressed if the air temperatures are too high. The plant needs well-drained soil and ideally 1 high in organic matter. To keep it blooming, fertilize with a slow release fertilizer formulated for flowering plants once a month in the spring.

Panicle hydrangeas require minimal pruning throughout the season. In early spring (March-April), after the leaves sprout and before flowering, lightly prune any dead, broken, or diseased shoots. Remove them at the base to prevent any spread of disease. In mid-summer (July), lightly prune and shape the plant as desired by removing up to 1-third of the shoots. This will help keep the plant in shape and promote bushier growth. In late winter (January), prune all the old stems and canes to the ground to encourage new basal growth. Whenever possible prune hydrangeas during dry, calm days as high winds and wet conditions can cause plant damage.