As a gardening and landscaping expert, I can confidently say that hydrangeas have the ability to grow back if they are cut to the ground. However, the extent to which they regrow depends on the type of hydrangea and the specific conditions in which it is planted.
Firstly, it is important to note that there are different types of hydrangeas, and each has its own growth habits. Some hydrangeas, such as the smooth hydrangea (Hydrangea arborescens), the panicle hydrangea (Hydrangea paniculata), and the oakleaf hydrangea (Hydrangea quercifolia), are known for their ability to regrow from the ground even if pruned back severely.
On the other hand, certain hydrangeas, like the bigleaf hydrangea (Hydrangea macrophylla) and the mountain hydrangea (Hydrangea serrata), have a more limited ability to regrow from the ground. These hydrangeas typically set flower buds on previous year’s wood (old wood), so if they are pruned back to the ground, they may not produce flowers in the following growing season.
When hydrangeas are cut to the ground, they may initially appear to be completely gone. However, most hydrangeas have dormant buds located near the base of the plant that can sprout and start growing again. These dormant buds are often protected by a layer of mulch or fallen leaves, which helps to insulate them during the winter months.
It is worth mentioning that the regrowth process may take some time. After being cut back, hydrangeas need to go through a period of recovery before they start actively growing again. This recovery period can vary depending on factors such as the health of the plant, the growing conditions, and the specific type of hydrangea.
In my own experience, I have seen hydrangeas that were cut to the ground in late winter or early spring gradually regrow and reach their former size within a single growing season. However, it is important to note that this may not always be the case, especially for hydrangeas that set flower buds on old wood. In such cases, it may take a year or more for the plant to fully recover and produce flowers again.
To ensure the best chances of regrowth, it is advisable to plant hydrangeas in a location where they have enough space to grow and spread. This will give them the opportunity to recover and thrive after being cut back. Additionally, providing adequate water, nutrients, and sunlight will also support their regrowth.
While hydrangeas have the ability to regrow if cut to the ground, the extent and timing of their regrowth can vary depending on the type of hydrangea and the specific growing conditions. It is important to consider these factors when deciding whether or not to prune hydrangeas back to the ground.
