Exploring the Various Types of Hydrangeas

Hydrangeas are one of the most beloved flowering plants in the world. They are known for their large, showy blooms and their ability to thrive in a wide range of climates. But did you know that there are many different types of hydrangeas? In this article, we will explore the various species of hydrangeas, their unique characteristics, and how to care for them.

The Different Types of Hydrangeas

1. Bigleaf Hydrangeas (Hydrangea macrophylla)

Bigleaf hydrangeas are the most common type of hydrangea. They have large, round flower heads that come in a variety of colors, including pink, blue, purple, and white. The color of the flowers is affected by the pH levels of the soil. Acidic soil produces blue flowers, while alkaline soil produces pink flowers. These hydrangeas prefer moist, well-drained soil and partial shade. They bloom from late spring to early fall.

Caring for Bigleaf Hydrangeas

To care for bigleaf hydrangeas, make sure they are planted in well-draining soil with plenty of organic matter. Keep the soil moist but not waterlogged. To change the color of the flowers, amend the soil with aluminum sulfate for blue flowers or lime for pink flowers. Prune these hydrangeas in late summer or early fall after they bloom.

2. Panicle Hydrangeas (Hydrangea paniculata)

Panicle hydrangeas have long, cone-shaped flower heads that are made up of smaller blooms. They come in a variety of colors, including white, pink, and red. These hydrangeas are very hardy and can tolerate a wide range of soil conditions. They prefer full sun to partial shade and bloom from mid-summer to fall.

Caring for Panicle Hydrangeas

To care for panicle hydrangeas, make sure they are planted in well-draining soil with plenty of organic matter. These hydrangeas are drought-tolerant but benefit from regular watering during dry spells. Prune them in late winter or early spring before they begin to grow new leaves.

3. Smooth Hydrangeas (Hydrangea arborescens)

Smooth hydrangeas have large, round flower heads that are typically white. They are very hardy and can tolerate a wide range of soil conditions. These hydrangeas prefer partial shade and bloom from late spring to early fall.

Caring for Smooth Hydrangeas

To care for smooth hydrangeas, make sure they are planted in well-draining soil with plenty of organic matter. Keep the soil moist but not waterlogged. These hydrangeas can be pruned in late winter or early spring before new growth appears.

4. Oakleaf Hydrangeas (Hydrangea quercifolia)

Oakleaf hydrangeas have large, cone-shaped flower heads that are made up of small, white flowers. The foliage of this hydrangea is shaped like an oak leaf, hence the name. The leaves turn a beautiful red or orange color in the fall. These hydrangeas prefer partial shade and bloom from late spring to early summer.

Caring for Oakleaf Hydrangeas

To care for oakleaf hydrangeas, make sure they are planted in well-draining soil with plenty of organic matter. Keep the soil moist but not waterlogged. These hydrangeas can be pruned in late winter or early spring before new growth appears.

5. Climbing Hydrangeas (Hydrangea anomala ssp. petiolaris)

Climbing hydrangeas are unique in that they can grow vertically up walls or other structures. They have large, white flower heads and thick, woody stems. These hydrangeas prefer partial shade and bloom from mid-summer to early fall.

Caring for Climbing Hydrangeas

To care for climbing hydrangeas, make sure they are planted in well-draining soil with plenty of organic matter. Keep the soil moist but not waterlogged. These hydrangeas can be trained to grow up walls or other structures by tying them to supports. Prune them in late winter or early spring before new growth appears.

Frequently Asked Questions

1. How do I prune my hydrangeas?

Pruning requirements vary depending on the type of hydrangea you have. Generally, you should prune your hydrangeas in late winter or early spring before new growth appears. Remove any dead or damaged branches, as well as any old wood that is no longer producing flowers. If you have bigleaf hydrangeas, you can also remove some of the older stems to promote new growth.

2. How do I change the color of my hydrangea flowers?

The color of hydrangea flowers is affected by the pH levels of the soil. Acidic soil produces blue flowers, while alkaline soil produces pink flowers. To change the color of your hydrangea flowers, amend the soil with aluminum sulfate for blue flowers or lime for pink flowers.

3. How often should I water my hydrangeas?

Hydrangeas prefer moist, well-drained soil. Water them deeply once a week, or more often during hot, dry weather. Avoid overwatering, as this can lead to root rot.

4. When is the best time to plant hydrangeas?

The best time to plant hydrangeas is in the spring or fall, when the weather is mild and the soil is moist. Avoid planting hydrangeas during the heat of the summer or the cold of winter.

5. What are some common pests and diseases that affect hydrangeas?

Hydrangeas can be affected by a variety of pests and diseases, including aphids, spider mites, powdery mildew, and leaf spot. To prevent these problems, make sure your hydrangeas are planted in well-draining soil with plenty of organic matter. Keep the foliage dry by watering at the base of the plants, rather than from above. If you do notice signs of pests or disease, treat them promptly with an appropriate insecticide or fungicide.


Hydrangeas are beautiful and versatile plants that come in a wide range of shapes, sizes, and colors. Whether you prefer the classic bigleaf hydrangea or the unique climbing hydrangea, there is a type of hydrangea that will suit your needs. By following the care tips outlined in this article, you can enjoy healthy, vibrant hydrangeas in your garden for years to come.