How to Use Bigleaf Hydrangea Plant in Containers

Bigleaf hydrangeas, also known as Hydrangea macrophylla, are a popular choice for gardeners looking to add a splash of color and beauty to their outdoor spaces. These stunning plants are known for their large, showy blooms that come in a variety of shades including pink, blue, purple, and white. While bigleaf hydrangeas are commonly planted in gardens, they can also thrive in containers, making them a versatile option for patios, balconies, and small outdoor spaces. In this article, we will explore how to successfully grow and care for bigleaf hydrangeas in containers.

Choosing the Right Container

When selecting a container for your bigleaf hydrangea plant, it is important to choose one that is large enough to accommodate the plant’s root system and provide ample room for growth. Opt for a container that is at least 16-20 inches in diameter and has drainage holes at the bottom to allow excess water to escape. Additionally, consider using a lightweight container made of materials such as plastic or resin, as these will be easier to move around if needed.

Selecting the Right Soil

Bigleaf hydrangeas prefer well-draining soil that is rich in organic matter. When planting your hydrangea in a container, use a high-quality potting mix specifically formulated for flowering plants. Avoid using heavy garden soil or soil that is compacted, as this can lead to poor drainage and root rot. You can also add some perlite or sand to the soil mix to improve drainage.

Planting Your Bigleaf Hydrangea

Before planting your bigleaf hydrangea in a container, make sure to thoroughly water the plant in its nursery pot to ensure the roots are well-hydrated. Fill the container with potting mix until it is about one-third full, then carefully remove the hydrangea from its nursery pot and place it in the center of the container. Add more potting mix around the plant until it is firmly secured in place, making sure not to bury the stem too deeply.

Watering and Fertilizing

Proper watering is essential for the health and growth of your bigleaf hydrangea plant. Water the plant regularly, keeping the soil consistently moist but not waterlogged. Check the soil moisture levels regularly by inserting your finger into the soil – if it feels dry to the touch, it’s time to water.

Fertilize your bigleaf hydrangea plant with a balanced fertilizer formulated for flowering plants every 4-6 weeks during the growing season (spring through fall). Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of blooms.

Providing Adequate Light and Temperature

Bigleaf hydrangeas prefer partial shade or dappled sunlight, especially during the hottest part of the day. Place your container in a location where it will receive morning sun and afternoon shade for optimal growth and bloom production. Protect your hydrangea from strong winds, as they can damage delicate blooms and foliage.

Maintain a consistent temperature range of 60-70°F (15-21°C) for your bigleaf hydrangea plant. Avoid exposing the plant to extreme temperatures or drafts, as this can stress the plant and impact its overall health.

Pruning and Deadheading

Regular pruning is key to maintaining the shape and health of your bigleaf hydrangea plant. Prune dead or damaged branches as needed throughout the growing season, taking care not to prune off any buds that will develop into flowers.

Deadheading spent blooms can encourage new growth and flowering throughout the season. Use clean pruning shears to snip off faded blooms just above a set of healthy leaves or buds.

Overwintering Your Bigleaf Hydrangea

In regions where winter temperatures drop below freezing, it is important to protect your bigleaf hydrangea plant from frost damage. Before winter sets in, move your container-grown hydrangea to a sheltered location such as a garage or shed where it will be protected from harsh weather conditions.

Wrap the container with insulating material such as burlap or bubble wrap to help retain soil warmth and protect the roots from freezing temperatures. Water your hydrangea sparingly during winter dormancy to prevent the roots from drying out.

Conclusion

Bigleaf hydrangeas are a beautiful addition to any outdoor space, and with proper care and attention, they can thrive in containers just as well as they do in garden beds. By choosing the right container, soil mix, providing adequate light and temperature conditions, regular watering and fertilizing, as well as pruning and overwintering when necessary, you can enjoy vibrant blooms from your bigleaf hydrangea year after year. With these tips in mind, you can create a stunning container display featuring these iconic flowering plants.