Updated: June 18, 2023

Hydrangeas are beloved for their beautiful, large flower heads and lush foliage. They can add a touch of elegance and charm to any garden or landscape. However, if you notice that your hydrangeas are growing sideways instead of upright, it can be a cause for concern. In this article, we will explore the possible reasons behind this unusual growth pattern and provide solutions to help your hydrangeas grow upright and thrive.

Lack of Sunlight

One of the most common reasons why hydrangeas grow sideways is a lack of sunlight. Hydrangeas require at least 4-6 hours of direct sunlight per day to grow and bloom properly. If they are not receiving enough sunlight, they may start to stretch towards the available light source, leading to sideways growth.

To remedy this issue, it is important to choose an appropriate location for your hydrangeas where they can receive adequate sunlight. Ensure that they are not overshadowed by trees, buildings, or other tall plants. If necessary, consider transplanting them to a sunnier spot in your garden.

Improper Pruning

Pruning plays a crucial role in maintaining the health and shape of hydrangeas. If done incorrectly, it can result in sideways growth. Pruning at the wrong time or cutting back too much can stimulate vigorous growth in the wrong direction.

To avoid sideways growth due to improper pruning, it is essential to understand the specific pruning needs of your hydrangea variety. Some hydrangeas bloom on old wood, while others bloom on new wood. Prune your hydrangeas immediately after they finish blooming or during late winter or early spring before new growth appears. Be sure to remove dead or damaged branches while maintaining the natural shape of the plant.

Insufficient Watering

Hydrangeas require consistent moisture to thrive. If they do not receive enough water, they may start to lean or grow sideways as they try to seek moisture from the soil.

To prevent sideways growth due to insufficient watering, it is important to water your hydrangeas deeply and regularly. Provide them with about 1 inch of water per week, either through rainfall or manual watering. Mulching around the base of the plant can also help retain moisture in the soil.

Soil Conditions

The quality and composition of the soil can greatly impact the growth of hydrangeas. If the soil lacks essential nutrients or is too compacted, it can hinder proper root development and lead to sideways growth.

To ensure optimal soil conditions for your hydrangeas, perform a soil test to determine its pH level and nutrient content. Hydrangeas prefer slightly acidic soil with a pH range of 5.5 to 6.5. If the pH is too high, add sulfur or aluminum sulfate to lower it. Additionally, loosening compacted soil and incorporating organic matter such as compost can improve drainage and nutrient availability.

Wind Exposure

Strong winds can cause physical stress on hydrangea plants, resulting in sideways growth. The constant pressure from wind can bend the stems and cause them to grow in a leaning or horizontal direction.

To protect your hydrangeas from wind damage, consider installing a windbreak such as a fence or shrubs. You can also provide temporary support for your plants by staking them until they become more established and can withstand wind pressure on their own.

Pests and Diseases

Certain pests and diseases can weaken hydrangea plants, making them more susceptible to sideways growth. Aphids, spider mites, and fungal infections are some common culprits that can affect the overall health of hydrangeas.

Regularly inspect your plants for any signs of pests or diseases. If you notice any issues, take appropriate measures to control and eliminate them. This may involve using insecticidal soaps or sprays, pruning affected areas, or applying fungicides as recommended.

In conclusion, if your hydrangeas are growing sideways, it is important to identify the underlying cause and take appropriate action. Whether it is due to lack of sunlight, improper pruning, insufficient watering, poor soil conditions, wind exposure, or pest and disease issues, addressing the problem promptly can help your hydrangeas regain their upright growth and flourish in your garden. Remember to provide them with optimal growing conditions, including adequate sunlight, regular watering, proper pruning techniques, well-draining soil, and protection from wind and pests. By doing so, you can enjoy the beauty of upright hydrangea plants for years to come.