Pruning hydrangea standards, also known as tree hydrangeas, is an important task to maintain their shape and promote healthy growth. Here is a step-by-step guide on how to prune these plants effectively.
1. Timing: It is best to prune hydrangea standards in either fall, late winter, or early spring. Fall pruning can be done after the plant has finished blooming for the season. Late winter or early spring pruning is beneficial as it allows the plant to focus its energy on new growth during the upcoming growing season.
2. Tools: Make sure you have the right tools before starting the pruning process. You will need a pair of sharp pruning shears or loppers, depending on the thickness of the branches. Ensure that your tools are clean and well-maintained to prevent the spread of diseases.
3. Assess the plant: Take a close look at your hydrangea standards and identify any dead, damaged, or diseased branches. These should be the first to be removed. Dead or diseased branches can inhibit healthy growth and can also be unsightly.
4. Heading cut: Identify a fat bud just above the point where you want to prune the stem. This bud will be the new growth point for the plant. Make a heading cut just above this bud, ensuring a clean and angled cut. This will encourage new growth and help maintain the desired shape of the plant.
5. Remove old flower heads: If your hydrangea standards have conical-shaped flower heads, it is recommended to leave the dry, tan flower heads on the plant during winter for some added interest. Therefore, pruning these plants can be delayed until late winter or early spring. However, if the flower heads are unsightly or you prefer a cleaner look, you can remove them during the fall pruning.
6. Prune selectively: Avoid excessive pruning as it can lead to a reduction in flowering. Hydrangea standards generally require minimal pruning, mainly to remove dead or damaged branches and to maintain their shape. Over-pruning can result in fewer blooms the following season.
7. Clean up: After pruning, make sure to clean up any fallen leaves, branches, or debris around the plant. This will help prevent the spread of diseases and pests.
Personal experience: Pruning hydrangea standards can vary depending on the specific variety and region. In my own garden, I have found that late winter pruning works best for my hydrangea standards. I prefer to leave the dry flower heads on the plant during winter, as they add a touch of beauty to the landscape. Additionally, I make sure to assess the plant carefully and prune selectively, only removing dead or damaged branches to maintain the overall shape of the plant.
To summarize, pruning hydrangea standards involves making heading cuts just above fat buds, removing dead or damaged branches, and optionally leaving the dry flower heads during winter for added interest. By following these steps and pruning at the right time, you can keep your hydrangea standards healthy, well-shaped, and ready to bloom beautifully in the upcoming season.
