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…
How – and where – to plant hellebores in your garden for lush, long-lasting blooms
Everything you need to know about growing low-maintenance hellebores
Small white hellebore flowers
Read more
These 7 orange flowers will make your garden pop
Add these orange flowers to your home or garden for a burst of color
A close-up of kniphofia flowers

From fiery and bright to subtle and light, orange flowers add a pop of color to any garden space. On their own they can add vibrancy to a drab or dark area, and they pair well with a wide range of other colors, too. The only problem is that there are too many beautiful orange flowers to choose from! If you're feeling overwhelmed, we’re here to help. No matter what type of climate you live in or what size plant you want, there’s an orange flower fit for your yard. Keep reading to find your perfect match!
Kniphofia

Also called torch lilies or red hot pokers, these tall, unique-looking plants strongly resemble their namesakes. They can grow to be five feet tall and are very attractive to pollinators, making them excellent centerpieces. Just make sure to give them plenty of room to grow.

Read more
The colors of fall flowers can be striking: 12 flowers that’ll have your garden bursting with autumn colors
Keep your fall garden gorgeous and colorful with these flowers
Scarecrow among fall flowers

Spring and summer receive most of the attention when it comes to beautiful flowers, but there are many wonderful flowers that bloom in fall, too! From reds and golds that match your trees' leaves to softer blues and purples, there are so many options to choose from. No matter the climate you live in or the colors you prefer, there are plants that will look great in your autumn garden. These 12 fall flowers can satisfy any gardener, whether you’re looking to fill a full flower bed or just one or two containers to spruce up your porch. Here are our favorite flowers to bring the colors of fall to your home or garden.
Celosia

Celosia, also sometimes called cock’s comb or wool flowers, are sure to stand out in any garden. These unique flowers come in shades of pink, orange, red, yellow, and purple. They can be shaped like fox tails (triangular and bushy) or like coral, wide and wavy. They grow easily in containers or gardens. Celosia are low-maintenance flowers. They enjoy full sun, although they will tolerate some shade, and do best in well-draining soil. Celosia won’t tolerate standing water or wet feet, so let the soil dry between waterings.
Marigold

Read more