Grow Hydrangeas Indoors: A Complete Guide For 2023

2 min read

Hydrangea Indoor Assorted 15cm Big Jims Garden Centre


Hydrangeas are beautiful flowering plants that can add a touch of elegance and color to any indoor space. If you’ve ever wanted to grow hydrangeas indoors but weren’t sure where to start, you’ve come to the right place. In this article, we’ll provide you with all the information you need to successfully grow and care for hydrangeas in the comfort of your own home. Whether you’re a seasoned gardener or a beginner, our guide will help you create a stunning indoor hydrangea display.

Why Grow Hydrangeas Indoors?

There are several reasons why growing hydrangeas indoors is a great idea. First and foremost, indoor hydrangeas can brighten up any room with their vibrant and eye-catching blooms. Additionally, these plants are relatively easy to care for and can thrive in a variety of indoor environments. Whether you have a sunny windowsill or a shady corner, there’s a hydrangea variety that will suit your needs. Lastly, growing hydrangeas indoors allows you to enjoy their beauty and fragrance year-round, even when the weather outside is less than ideal.

Choosing the Right Hydrangea Variety

When it comes to growing hydrangeas indoors, choosing the right variety is crucial. Some hydrangea varieties are better suited for indoor cultivation than others. For example, the Bigleaf hydrangea (Hydrangea macrophylla) and the Mountain hydrangea (Hydrangea serrata) are popular choices for indoor growing due to their compact size and adaptability to different light conditions. It’s important to research the specific needs of each variety and select one that aligns with your indoor environment.

Light Requirements

Light is one of the most important factors for successfully growing hydrangeas indoors. While most hydrangeas prefer bright, indirect light, some varieties can tolerate lower light conditions. Place your hydrangeas near a window that receives filtered sunlight for at least 4-6 hours a day. If you don’t have access to natural light, you can use artificial grow lights to provide the necessary light intensity and duration.

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Watering and Humidity

Hydrangeas like to be kept consistently moist, but not overly saturated. Water your plants when the top inch of soil feels dry to the touch. It’s important to avoid letting the soil dry out completely or become waterlogged. Additionally, hydrangeas thrive in humid environments, so be sure to mist the leaves regularly or place a tray filled with water near the plants to increase humidity levels.

Temperature and Air Circulation

Hydrangeas prefer temperatures between 60°F and 70°F (15°C and 21°C). Avoid placing them near drafty windows or in areas with extreme temperature fluctuations. Good air circulation is also important to prevent the growth of mold and mildew. You can achieve this by placing a small fan near your hydrangeas or by opening a window for a few minutes each day.


Regular fertilization is essential for promoting healthy growth and abundant blooms in indoor hydrangeas. Use a balanced, water-soluble fertilizer once a month during the growing season (spring and summer). Be sure to follow the instructions on the fertilizer packaging to avoid over-fertilization, which can lead to burned roots and foliage.

Potting and Repotting

Choose a pot with good drainage holes and use a well-draining potting mix specifically formulated for hydrangeas. When repotting, choose a pot that is one size larger than the current one to allow room for root growth. Repotting is typically done every 2-3 years or when the plant outgrows its current container.

Common Problems and Solutions

Like any plant, hydrangeas can encounter a few common issues. One of the most common problems is the wilting of leaves, which can be caused by underwatering or overwatering. To fix this issue, adjust your watering routine accordingly. Another common problem is the failure to bloom, which can be caused by insufficient light or incorrect pruning. Ensure your hydrangeas are receiving adequate light and follow proper pruning techniques to encourage blooming.

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Growing hydrangeas indoors can be a rewarding and enjoyable experience. By choosing the right variety, providing the proper care, and addressing any issues that may arise, you can create a stunning indoor hydrangea display that will brighten up your home year-round. Follow the tips and guidelines in this guide, and soon you’ll be enjoying the beauty and fragrance of these gorgeous flowering plants right in your own living space.