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The Best Blue Hydrangea: A Comprehensive Guide


best blue hydrangea
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Hydrangeas are a popular choice for gardeners looking to add color and beauty to their outdoor space. Among the many varieties of hydrangeas, the blue ones are particularly stunning. In this guide, we'll explore the best blue hydrangeas and provide tips on how to care for them.

Best Blue Hydrangea Varieties

There are several types of blue hydrangeas available in the market, but the following ones are considered the best:

Nikko Blue Hydrangea

The Nikko Blue Hydrangea is a large shrub that produces clusters of vibrant blue flowers in the summer. It can grow up to 6 feet tall and wide, making it an excellent choice for larger gardens. This variety prefers partial shade and moist, well-draining soil.

Endless Summer Hydrangea

The Endless Summer Hydrangea is a popular variety that blooms on both old and new wood, meaning it can produce flowers all season long. The flowers blooming in early summer and continue until the fall, and they come in shades of blue, pink, or purple. This variety prefers part sun to part shade and well-draining soil.

Bluebird Hydrangea

The Bluebird Hydrangea is a compact shrub that grows up to 4 feet tall and wide. Its flowers are a beautiful shade of blue and bloom in late spring through summer. This variety prefers full sun to partial shade and well-draining soil.

Caring for Blue Hydrangeas

Now that you know the best blue hydrangea varieties, let's discuss how to care for them.

Watering

Blue hydrangeas require consistent moisture, especially during the growing season. Water your plants deeply once a week or more often if the weather is hot and dry.

Fertilization

Fertilize your blue hydrangeas in the spring with a slow-release fertilizer. Avoid fertilizing too much as it can lead to overgrowth and fewer blooms.

Pruning

Prune your blue hydrangeas in late winter or early spring before new growth begins. Remove any dead or damaged wood and cut back the remaining stems to encourage new growth and more blooms.

Blue Hydrangea Companion Plants

Pairing your blue hydrangeas with the right companion plants can enhance their beauty and create a stunning garden. Here are some plants that go well with blue hydrangeas:

Lavender

Lavender's soft purple color complements blue hydrangeas perfectly. Plus, its soothing scent can help repel pests.

Japanese Anemones

The delicate pink flowers of Japanese anemones contrast beautifully with blue hydrangeas, making for a striking display.

Hostas

Hostas' lush green foliage provides a lovely backdrop for blue hydrangeas. They also prefer similar growing conditions, making them ideal companions.

Common Blue Hydrangea Problems

Even with proper care, blue hydrangeas can still encounter problems. Here are some of the most common issues and how to address them:

Browning Leaves

Browning leaves can be caused by underwatering, overfertilization, or too much sun exposure. Make sure your plants are getting enough water and fertilize them in moderation. Move them to a shadier spot if they're getting too much sun.

Powdery Mildew

Powdery mildew is a fungal disease that causes a white, powdery coating on leaves. It's often caused by poor air circulation and high humidity. To prevent powdery mildew, make sure your plants have good airflow and avoid overhead watering.

FAQs

Q: Can I change the color of my blue hydrangea?

A: Yes, you can change the color of your blue hydrangea by adjusting the soil pH. For example, adding aluminum sulfate to your soil can turn your blue hydrangeas into pink ones.

Q: When should I prune my blue hydrangeas?

A: Prune your blue hydrangeas in late winter or early spring before new growth begins.

Q: How often should I water my blue hydrangeas?

A: Water your blue hydrangeas deeply once a week or more often if the weather is hot and dry.

Q: Can blue hydrangeas grow in full sun?

A: Some varieties of blue hydrangeas can grow in full sun, but most prefer partial shade.

Q: What's the best soil for blue hydrangeas?

A: Blue hydrangeas prefer moist, well-draining soil with a pH between 5.2 and 6.0.


Blue hydrangeas are a beautiful addition to any garden, and with proper care, they can thrive for many years. Remember to choose the right variety for your space, provide consistent moisture, and prune your plants in the late winter or early spring. Don't forget to add some companion plants to enhance their beauty, and be on the lookout for common problems like browning leaves and powdery mildew. With these tips, you'll have a gorgeous garden full of stunning blue hydrangeas in no time.


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