Skip to main content

Endless summer hydrangeas will keep your garden colorful all year – a complete care guide

How to care for your endless summer hydrangeas

Purple and blue hydrangeas
Kathryn Roach / Shutterstock

Spring is the season when gardens really come to life. There are some flowers that bloom in the fall, but the majority of flowers begin blooming in spring and finish over the summer. Wouldn’t it be nice for your garden to stay colorful year-round? By planting endless summer hydrangeas, you can enjoy bright hydrangea flowers well after most hydrangea flowers have dried up. Here’s what you need to know to grow these stunning flowers.

Recommended Videos

Difficulty

Easy

Duration

1 hour

What You Need

  • Soil pH testing kit

  • Compost

  • Garden sulfur, garden lime, or wood ash (optional)

  • Pruning shears

  • Insecticidal soap or neem oil

A shady hydrangea garden
dk tazunoki / Shutterstock

What makes the endless summer hydrangea unique?

Hydrangeas are known for their large, bright flowers, which are lovely on the plant or as cut flowers. The color of hydrangea flowers is influenced by the soil pH as well. These facts are true of the endless summer hydrangea, but it has a few additional benefits.

Endless summer hydrangeas have a higher cold tolerance than other hydrangea varieties. While they prefer warm weather, you can grow these hydrangeas as far north as USDA Hardiness Zone 4. As their name implies, they also have long-lasting flowers and are repeat bloomers. This means your plant will continue to put out new flowers from spring into early fall.

Blue, pink, and purple hydrangea flowers
A_Knop / Pixabay

Planting endless summer hydrangeas

To start your endless summer hydrangeas off right, here's how to plant them:

Step 1: Place them where they will get morning sun and afternoon shade.

Step 2: Use loamy, well-draining soil.

Step 3: Check the soil pH to determine flower color.

Acidic soil will produce blue flowers, alkaline soil will make pink flowers, and neutral soil will produce purple flowers.

Step 4: Amend the soil with compost and additives to change the soil pH.

If you want a certain flower color, you can change the soil pH. Be careful not to change the pH too much, as a drastic shift will harm the surrounding plants. Add garden sulfur for more acidic soil and garden lime or wood ash for more alkaline soil.

Light blue and pink hydrangea flowers
HelgaKa / Pixabay

Caring for endless summer hydrangeas

Once your hydrangeas are planted, here’s how to care for them:

Step 1: Keep the soil moist but not soaking wet.

Step 2: Water below the leaves to reduce the risk of anthracnose.

Anthracnose is a fungal infection that is caused by water on the leaves, stems, and fruits of certain plants, including tomatoes, cucumbers, and hydrangeas.

Step 3: Prune your hydrangeas rarely and only in spring.

Pruning later in the year means your hydrangeas will spend more time regrowing stems and less time flowering.

Step 4: Watch for damage from slugs, beetles, aphids, and scale.

Insecticidal soap and neem oil are effective treatments for these pests.

Step 5: Remove wilted or dead flowers with pruning shears to make room for new flowers to grow.

If you want a garden bursting with color all year long, then endless summer hydrangeas would make a great addition. They aren’t difficult to grow, and they flower for longer than other hydrangea varieties. Now that you know all about planting and caring for them, you’re ready to add these delightful flowers to your garden!

Topics
Cayla Leonard
Cayla Leonard is a writer from North Carolina who is passionate about plants.  She enjoys reading and writing fiction and…
Transform your garden with these beautiful landscape edging ideas
Try these ideas and up your garden game this spring
Various colorful flowers in a garden with a low wooden wall border

Garden beds are a classic way of organizing a garden, and they’re excellent for creating separate spaces that have different aesthetics or themes. However, there is a catch. If you want your garden beds to be unique areas, you need to keep them from blending into the rest of your yard or garden. If the edges aren’t neat, it can be difficult to tell where the bed begins and ends. Rough edges don’t just impact the aesthetics of your garden beds, though. They can also make certain parts of caring for your garden more difficult. To keep your garden beds orderly, here are a few landscape edging ideas for you to try.
What is landscape edging?

Landscape edging is a border between a garden bed and the rest of your garden or yard. They can look like almost anything, from a small wall to a decorative fence, and serve several functions. Aesthetically, they set the garden bed apart from the rest of the area, making it a contained unit. If you’re a fan of English country gardens, landscape edging can help you achieve the same effect in a smaller space.

Read more
The essential delphinium care guide for healthy, vibrant plants
Tips on how to keep your delphinium flowers healthy
Blue larkspur delphinium flowers

Delphinium, also called larkspur, is a gorgeous plant known for its tall flower spikes lined with vibrantly colored flowers. While they may not look like it, these stunning flowers are actually in the buttercup family. There are over 300 species of delphiniums, so there’s bound to be some that fit your garden or lifestyle! There are perennial and annual delphinium species, some that are more tolerant of heat, cold, salt, and shade than others, and even species native to different regions. To get started growing your own delphiniums, here’s everything you need to know.
Planting delphinium

You can plant delphiniums in either spring or early fall. For spring plantings, wait until after the last frost of the year has passed, and for fall plantings, be sure to plant them a month or two before the first frost. You can also grow delphiniums in containers and start them indoors during any time of the year.

Read more
Flowers to plant in spring: Your guide to beautiful blooms
Add these flowers to your garden this spring
Purple and white columbine flowers

If a long, cold winter spent indoors has you feeling down, then planning a spring garden bursting with life and color is the ultimate pick-me-up. From fruit trees to ferns, there are a nearly endless number of plants you can choose from for your garden. It's overwhelming to figure out where to start. That’s why we’ve put together this guide on flowers to plant in spring to help you get started. Check out these lovely flowers, pick your favorites, and start planting today for your best spring garden yet.
Pansy

Pansies are known for their bright, cheerful flowers that bloom in early spring. Coming in a mix of purple, yellow, blue, and white, pansies are an excellent way to welcome spring. You can plant them in your garden as soon as the ground has thawed enough to be workable, although you can plant them later in the season as well.

Read more