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15 Best Companion Plants for Endless Summer Hydrangea

Love your Endless Summer hydrangeas but need ideas for what to plant with them? Here are the best companion plants for endless summer hydrangea!

Companion Plants for Endless Summer Hydrangea

Hello and welcome to Hydrangea Love!

This site is dedicated to the beautiful blooms we all love.

More specifically, this post is going to focus on the best companion plants for the Endless Summer variety.

When it comes to captivating garden blooms, few plants can rival the beauty and charm of the Endless Summer hydrangea (Hydrangea macrophylla ‘Endless Summer’).

This remarkable and classic cultivar has captured the hearts of gardeners worldwide with its ability to produce an abundance of stunning flowers throughout the summer and even into the fall.

In this blog post, we’ll delve into the basics of the Endless Summer hydrangea, exploring its characteristics, care requirements, and tips for achieving a never-ending summer display of blooms.

Related Reading: The Main Types of Hydrangeas – Hydrangea Varieties 101

Then we’ll explore the best companion plants for Endless Summer hydrangea!

So let’s get started!

Endless Summer Hydrangea Basics

The Endless Summer hydrangea is a perennial shrub that belongs to the Hydrangea macrophylla species, commonly known as bigleaf hydrangea.

What sets this cultivar apart from other hydrangeas is its unique ability to bloom on both old and new wood, resulting in an extended flowering season.

This extraordinary trait gives rise to the name “Endless Summer,” as the plant can continue producing blooms for an extended period.

Characteristics and Flowering:

The Endless Summer hydrangea typically grows to a height of 3 to 5 feet, with a similar spread. Its large, glossy green leaves provide a beautiful backdrop to the main attraction—the vibrant and abundant flowers.

The flower heads of this hydrangea can range in color from vivid blue and deep pink to a delightful mix of both, depending on the soil pH and variety.

(You can often find them at your local nursery with pink flowers and then they may later turn purple or blue in acidic soil.)

best Companion Plants for Endless Summer Hydrangeas

Soil and Light Requirements:

To ensure healthy growth and abundant blooms, it’s essential to plant your Endless Summer hydrangea in well-draining soil enriched with organic matter.

The ideal soil pH for blue blooms is between 5.2 and 5.5, while pink blooms thrive in slightly acidic to neutral soil with a pH of 6.0 to 6.2.

The plant prefers partial shade, especially in hotter regions, but it can tolerate full sun if provided with sufficient moisture.

For best results, plant in early summer or late spring so that the plants have a long time to get established before cold winter conditions.

Watering and Moisture:

Hydrangeas, including the Endless Summer variety, have moderate water needs. It’s crucial to keep the soil consistently moist but not overly saturated.

Regular watering is especially crucial during dry spells or in containers. Adding a layer of mulch around the base of the plant can help retain moisture, regulate soil temperature, and suppress weed growth.

Pruning and Maintenance:

Pruning the Endless Summer hydrangea is relatively straightforward. Since it flowers on both old and new wood, you have the flexibility to prune for shape and size without compromising the blooming potential.

Prune the shrub in late winter or early spring, removing any damaged or dead wood and thinning out crowded branches to encourage airflow.

Deadheading spent blooms throughout the summer can also promote continuous flowering.

Winter Protection:

In regions with cold winters, providing winter protection is crucial for the survival of your Endless Summer hydrangea.

Applying a layer of mulch around the base of the plant in late fall can help insulate the roots and protect them from freezing temperatures.

Additionally, you can cover the shrub with burlap or a frost blanket to shield it from harsh winds and frost.

P.S. If you’re still planning your garden and don’t have your hydrangeas yet, here is one of the best online nurseries to shop from!

The Best Companion Plants for Endless Summer Hydrangea

Creating a harmonious and visually stunning garden involves careful planning and selecting the right combination of plants.

When it comes to the Endless Summer hydrangea (Hydrangea macrophylla ‘Endless Summer’), choosing the right companion plants can enhance the overall beauty and impact of your garden.

Let’s explore some of the best companion plants that complement and highlight the splendor of the Endless Summer hydrangea.

1. Astilbe (Astilbe spp.)

astilbe companion plant for endless summer hydrangea

Known for its feathery plumes of flowers and fern-like foliage, Astilbe makes an excellent companion for the Endless Summer hydrangea.

The delicate, airy blooms of Astilbe provide a lovely contrast to the bold and showy hydrangea flowers.

They thrive in similar growing conditions, preferring part shade and moist, well-drained soil. Planting Astilbe in front of the hydrangea can create a beautiful layered effect, adding depth and texture to your garden.

Here is my favorite white Astilbe from my favorite online nursery!

2. Japanese Forest Grass (Hakonechloa macra):

Japanese Forest Grass

The graceful and elegant foliage of Japanese Forest Grass makes it an ideal companion for the Endless Summer hydrangea.

Its cascading, arching leaves add a touch of softness and movement to the garden.

Japanese Forest Grass thrives in partial shade and moist soil, making it a perfect partner for the hydrangea’s preferred growing conditions.

Plant it near the base of the hydrangea to create a visually pleasing contrast between the hydrangea’s bold blooms and the grass’s delicate foliage.

Shop Japenese Forest Grass online here.

3. Coral Bells (Heuchera spp.)

Coral bells heuchera

Coral Bells are prized for their vibrant, colorful foliage, which ranges from deep burgundy to lime green, and even variegated patterns.

These compact, mound-forming perennials make an excellent companion for the Endless Summer hydrangea, adding visual interest even when the hydrangea is not in bloom.

(This might be my favorite plant to add next to hydrangeas!)

Choose varieties that complement the hydrangea’s flower colors or opt for contrasting shades to create a striking color combination.

Coral Bells thrive in partial shade and well-drained soil, making them a versatile choice for different garden settings.

Click here to shop the best heuchera online.

4. Japanese Anemone (Anemone × hybrida)

Japanese Anemone

With their elegant and graceful flowers, Japanese Anemones provide a complementary backdrop to the Endless Summer hydrangea.

Their tall stems adorned with single or double blooms in shades of pink and white create a beautiful contrast against the hydrangea’s dense flower heads.

Japanese Anemones prefer partial shade and moist soil, making them an excellent choice for planting alongside the hydrangea.

The combination of their delicate blooms and the hydrangea’s bold flowers adds depth and visual interest to your garden.

There are some really pretty Japanese Anemone varieties here.

5. Hostas (Hosta spp.)

Hostas

Hostas are renowned for their striking foliage, which comes in a variety of shades, textures, and sizes.

These shade-loving perennials make an excellent companion for the Endless Summer hydrangea, especially in areas with partial shade.

(If you have a spot that is part sun, make sure that there is afternoon shade. Hostas will burn in the strong afternoon heat!)

The lush, broad leaves of hostas provide a contrasting backdrop to the hydrangea’s flowers, while their different leaf shapes and colors add texture and dimension to the garden.

They can be anywhere from dark green to lime green and anywhere in between! There are even blue hostas and silvery ones.

(Hostsas are my absolute favorite companion plant for hydrangeas other than heucheras.)

Plant hostas in clusters near the base of the hydrangea or as a border to create a visually appealing arrangement.

P.S. Hostas will die back in the winter and reappear at the beginning of the growing season. Click here to shop for them online!

6. Lily of the Valley (Convallaria majalis)

Lily of the Valley

Lily of the Valley is a charming, fragrant perennial that thrives in partial shade and moist soil, making it an excellent companion for the Endless Summer hydrangea.

Its dainty, bell-shaped flowers and lush green foliage create a beautiful contrast against the hydrangea’s blooms.

Plant Lily of the Valley in clusters near the base of the hydrangea to add a touch of elegance and fragrance to your garden.

Pssst – in my opinion, these make great companion plants because of the white. The contrast is just beautiful when paired with the pinks and blues of the Endless Summer! It really makes the hydrangeas pop!

Related Reading: Where To Buy Hydrangeas Online (Top Picks)

7. Japanese Painted Fern (Athyrium niponicum)

Japanese Painted Fern

The Japanese Painted Fern is prized for its unique foliage, featuring different shades of silver, green, and purple. Its delicate fronds add a touch of texture and color variation to the garden.

This shade-loving fern pairs well with the Endless Summer hydrangea, especially in woodland or shady garden settings. It truly is a great accent plant.

Plant it near the base of the hydrangea to create a visually pleasing contrast between the fern’s foliage and the hydrangea’s blooms.

Hint: If you absolutely must plant in an area of partial sun, make sure it’s morning sun instead of the harsh afternoon sun.

Other than that, ferns are generally a low-maintenance shrub.

8. Foamflower (Tiarella spp.)

Foamflower

Foamflower is a low-growing perennial that produces delicate, airy flower spikes and attractive, deeply lobed foliage.

It thrives in partial shade and moist, well-drained soil, making it an excellent companion for the Endless Summer hydrangea.

The foamflower’s mounding habit and foliage texture create an appealing backdrop for the hydrangea’s flowers.

Plant it in front of or around the hydrangea to add a sense of depth and grace to your garden.

9. Tall Phlox (Phlox paniculata)

Tall Phlox

Tall Phlox is a classic garden perennial known for its clusters of fragrant, colorful flowers. They are a great choice to plant near Endless Summer hydrangeas!

With a wide range of hues available, including shades of pink, purple, white, and blue, you can choose varieties that harmonize or contrast with the Endless Summer hydrangea’s blooms.

Tall Phlox thrives in full sun to partial shade and well-drained soil. Plant it near the hydrangea to create a vibrant and visually striking floral display.

10. Salvia (Salvia spp.)

Salvia

Salvia, also known as sage, is a versatile perennial that offers a wide array of flower colors and sizes.

From deep purples to vibrant reds and soft pinks, salvia can complement or contrast with the hues of your Endless Summer hydrangea.

With their vertical growth habit and attractive foliage, salvias add height, structure, and a burst of color to the garden.

Plant them near the hydrangea for a dynamic and eye-catching combination.

Here’s a really cool variety I found online.

11. Bleeding Heart (Dicentra spectabilis)

Bleeding Heart

Bleeding Heart is a perennial favorite with its heart-shaped flowers that dangle gracefully from arching stems. Its delicate pink or white blooms create a romantic and whimsical atmosphere in the garden.

Plant Bleeding Heart near your Endless Summer hydrangea to add a touch of elegance and grace.

This shade-loving plant thrives in moist, well-drained soil, making it a perfect match for the hydrangea’s growing conditions.

12. Russian Sage (Perovskia atriplicifolia)

Russian Sage - companion plants for endless summer hydrangea

Russian Sage is a drought-tolerant perennial known for its aromatic silvery-gray foliage and tall, airy spikes of lavender-blue flowers.

Its wispy appearance and upright growth habit make it an excellent companion for the Endless Summer hydrangea.

Russian Sage thrives in full sun and well-drained soil, providing a striking contrast to the hydrangea’s bold blooms.

Plant it nearby to create a dynamic combination of color and texture.

Here’s a variety of Russian Sage that you might like.

13. Black-Eyed Susan (Rudbeckia fulgida)

Black-Eyed Susan

Black-Eyed Susan is a cheerful perennial that adds a burst of sunny yellow to the garden. Its daisy-like flowers with dark centers bring a vibrant energy to any landscape.

This resilient plant thrives in full sun and well-drained soil, making it a perfect companion for the Endless Summer hydrangea.

Plant Black-Eyed Susans near the hydrangea to create a lively and eye-catching display of contrasting colors.

14. Japanese Spurge (Pachysandra terminalis)

Japanese Spurge

Japanese Spurge is a low-growing ground cover with glossy, evergreen foliage that forms a lush carpet in shaded areas.

Its ability to tolerate dry shade makes it an excellent companion for the Endless Summer hydrangea, especially if you have trees or other tall plants casting shade on your garden.

Plant Japanese Spurge around the base of the hydrangea to create a lush, green backdrop that highlights the hydrangea’s blooms.

15. Verbena (Verbena spp.)

Verbena - companion plants for endless summer hydrangea

Verbena is a versatile annual or perennial plant that offers a wide range of flower colors, including shades of pink, purple, red, and white. Its clusters of small, vibrant blooms attract butterflies and other pollinators to the garden.

This makes it a great addition for permaculture purposes!

Verbena thrives in full sun and well-drained soil, making it an ideal companion for the Endless Summer hydrangea. Plant it nearby to create a vibrant and pollinator-friendly garden display.

You Might Also Like: The Best Fertilizer For Hydrangeas + Fertilizing Tips

Did you like any of these companion plants for Endless Summer hydrangea?

The Endless Summer hydrangea is a true delight for garden enthusiasts seeking a long-lasting burst of color and beauty.

With its remarkable ability to bloom on both old and new wood, the cultivar ensures a never-ending summer display of stunning flowers.

When choosing your companion plants, remember to consider factors such as light requirements, soil preferences, and moisture needs when choosing companion plants for your Endless Summer Hydrangea.

By selecting plants that thrive in similar conditions and complement the hydrangea’s beauty, you can create a captivating and cohesive garden design that celebrates the splendor of nature.

Selecting the right companion plants for your Endless Summer Hydrangea really can transform your garden into a captivating and harmonious space.

Whether you choose plants with contrasting foliage, complementary colors, or varied textures, the key is to create a balanced and visually appealing combination.

Consider incorporating Astilbe, Japanese Forest Grass, Coral Bells, Phlox, or one of the other great plants listed here to create a gorgeous and colorful space.

But don’t forget that building a beautiful garden takes time. It’s never too late to add to, change, or remove parts of your garden.

Now – get out there and enjoy your hydrangea plants and shop for what to plant next to them!

Until next time,

Your fellow Hydrangea Lover

P.S. Feel free to share your favorite hydrangea companion plants with me by leaving a comment below!

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