Hydrangeas are an immensely popular choice for gardens across the United Kingdom, prized for their large, showy flower clusters that come in a range of eye-catching colours. These plants create stunning displays in gardens, landscapes, and floral arrangements, adding vibrant beauty to outdoor spaces.
Essential Pruning Advice from a Gardening Expert
However, to ensure the blooms are as beautiful as possible, gardeners must heed expert advice. Gardening specialist Michael, known as themediterraneangardener on TikTok, recently outlined his professional recommendations for hydrangea care during the spring season.
He explained that it is crucial to categorise your hydrangea plants into two distinct groups: those that bloom on old wood and those that bloom on new wood. This fundamental distinction dictates the proper care and pruning techniques required for each type, with most people typically tackling this task in the spring months.
The Critical Check Before Pruning
The most important point to remember is that hydrangeas must not be pruned until frosty conditions have completely passed. This check is essential to avoid damaging the plants and compromising future blooms. Michael emphasized that timing matters significantly, as premature pruning can lead to poor flowering results.
For hydrangeas that flower on old wood, such as Bigleaf, Oakleaf, and Climbing varieties, Michael advised: "You want to remove the old flower heads to just above a pair of buds. Hydrangea buds can be knocked off easily, so be careful with your secateurs." He further recommended cutting out any weak or thin stems at the base and removing one or two of the largest, oldest stems from as low down as possible to promote new shoots from the base. These new shoots will grow over the next few years and carry future blooms.
Pruning Techniques for New Wood Hydrangeas
For hydrangeas that flower on new wood, including Panicle and Smooth varieties, the approach is different. Michael stated: "These can be cut back a lot harder to a healthy framework—around 30cm high." Gardeners should prune to just above a pair of healthy buds on each stem and repeat this process over the entire plant. New wood varieties are more resilient and can survive heavy pruning and harsh winters better than old wood types.
Identifying Your Hydrangea Type
To apply the correct pruning method, it is vital to know whether your hydrangea blooms on old or new wood. Old wood hydrangea varieties include Bigleaf, Oakleaf, and Climbing hydrangeas, while new wood types encompass Panicle and Smooth hydrangeas.
Additionally, you can gather more information about your flowers by observing when they bloom. Early summer blooms typically indicate that the plants are old wood hydrangeas, whereas summer blooms suggest new wood varieties. This knowledge helps in tailoring care practices effectively.
In summary, before reaching for pruning tools this spring, ensure you understand the specific type of hydrangea in your garden. Conducting the frost check and identifying whether it blooms on old or new wood can make all the difference in achieving stunning, healthy blooms and maintaining the plant's vitality for seasons to come.
