Hydrangea Potted Plant Outside: A Complete Guide For 2023

Year of the Hydrangea National Garden Bureau Potted plants patio
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If you’re looking for a beautiful and low-maintenance plant to add to your outdoor space, a hydrangea potted plant might be just what you need. These stunning plants are easy to care for and can add a pop of color to any garden or patio. In this guide, we’ll cover everything you need to know about growing and caring for hydrangeas in pots outside.

Choosing the Right Pot

When it comes to growing hydrangeas in pots, choosing the right container is crucial. You want to select a pot that is large enough to accommodate the plant’s root system and allows for proper drainage. A pot that is too small can lead to root bound plants, while one that does not have adequate drainage can cause root rot.

Size Matters

In general, a hydrangea potted plant should be grown in a container that is at least 18 inches in diameter. This allows for enough room for the plant to grow and spread out. However, if you’re growing a larger variety, such as the “Limelight” hydrangea, you may need to go up to a 24-inch container.

Drainage is Key

When selecting a pot for your hydrangea, make sure it has drainage holes in the bottom. This will allow excess water to drain out, preventing the soil from becoming waterlogged and causing root rot. If your pot does not have drainage holes, you can drill them yourself or use a liner to create a false bottom.

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Choosing the Right Soil

Hydrangeas prefer well-draining soil that is rich in organic matter. When growing hydrangeas in pots, it’s important to choose a high-quality potting mix that contains plenty of perlite or vermiculite for drainage. Avoid using garden soil, as it can become compacted in a container and prevent proper drainage.

Adding Organic Matter

To improve the soil quality, you can add organic matter such as compost or aged manure to the potting mix. This will help retain moisture and provide nutrients for the plant. You can also add a slow-release fertilizer to the soil to ensure the plant gets the nutrients it needs throughout the growing season.

Watering and Fertilizing

Proper watering and fertilizing are key to growing healthy hydrangeas in pots outside. Hydrangeas need consistent moisture, but they don’t like to be waterlogged. It’s important to water your plant when the top inch of soil feels dry to the touch.


During the growing season, you can fertilize your hydrangea potted plant with a balanced fertilizer every two to three weeks. Avoid fertilizing in late summer or fall, as this can encourage new growth that may not have time to harden off before winter.

Pruning and Winter Care

Pruning is an important part of caring for hydrangeas, whether they are planted in the ground or in pots. In late winter or early spring, you can prune your hydrangea to remove any dead or damaged wood and shape the plant as desired.

Winter Care

During the winter months, it’s important to protect your hydrangea potted plant from freezing temperatures. You can do this by moving the pot into a protected area, such as a garage or shed, or covering it with a frost blanket or burlap.

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Growing hydrangeas in pots outside can be a rewarding experience. With the right pot, soil, watering, and fertilizing, you can enjoy a beautiful and low-maintenance plant that adds color and interest to your outdoor space. Just remember to prune and protect your plant during the winter months, and you’ll be able to enjoy your hydrangea potted plant for years to come.

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