Hydrangeas are renowned for their large, lush blooms and are a favorite amongst gardeners across the world. However, the success of these flowering shrubs largely depends on the timing and method of pruning. Pruning at the wrong time can result in a lack of blooms the following year.

Different species of hydrangeas require different pruning times. The two most common types are those that bloom on old wood (previous year’s growth), such as Hydrangea macrophylla and Hydrangea quercifolia, and those that bloom on new wood (current year’s growth), like Hydrangea paniculata and Hydrangea arborescens.

For hydrangeas that bloom on old wood, the best time to prune is immediately after they have finished flowering in summer. These varieties set their bloom buds in late summer or early fall, so a spring pruning could cut off the next season’s flowers. It’s typically safe to remove spent flowers and lightly shape these bushes right after they bloom without risking next year’s flower show.

On the other hand, hydrangeas that flower on new wood can be pruned in late winter or early spring before new growth begins. These types handle more aggressive pruning because they will produce buds on new branches that grow in the spring.

To ensure you do not prune at an inappropriate time, remember these simple guidelines:

– For old wood hydrangeas: prune just after flowering in summer.

– For new wood hydrangeas: prune in late winter or early spring.

It’s important not to “always” prune hydrangeas at a single specific time of year since their needs differ by species. Instead, adjust your pruning schedule based on your plant’s blooming habits to ensure a healthy plant full of flowers each year. Always use clean, sharp tools and make cuts just above a pair of healthy buds to promote good plant health and abundant blooms.