Endless Summer® Hydrangea Shrubs

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All About Endless Summer® Hydrangeas

Hydrangea Endless Summer® varieties earn their name. Traditional hydrangeas bloom once in the spring or summer for several weeks. The Hydrangea macrophylla Endless Summer® line will make a second showing later in the year, which can last into early autumn. 

These hydrangeas are hybrids of H. macrophylla. They are sometimes called mophead hydrangea shrubs, meaning their blooms are large, round, and full. They are cold-hardy and easy to grow in garden beds or containers. Many colors and sizes are available.  

Endless Summer® hydrangeas are also stunning in fall and turn shades of bronze, burgundy, and orange before taking a nap for the winter.

How to Landscape Endless Summer® Hydrangeas in the Garden

Endless Summer® hydrangeas are excellent focal plants in perennial garden beds. Their long blooming time can provide color while other plants are fading out. They are a perfect choice for plantings at the corners of your house or garage or to jazz up your mailbox or porch. A pair of Endless Summer Bloomstruck® hydrangeas make excellent colorful sentinels for the end of your driveway.

Hydrangeas make awe-inspiring mass plantings, and Endless Summer® is even better as the color lasts all season. A row of Summer Crush® planted along the deck or front porch is stunning.

You can also grow Endless Summer® hydrangeas in pots or large containers. They will grow well in larger pots and planters and can add a great splash of color. Bring them inside for the winter if your growing zone is too cold to leave them outside.

Endless Summer® Hydrangea Care

The optimal amount of sunshine these hydrangeas like is dependent on your location. Gardeners in the northern section of the range, say in USDA zones 4 and 5, can plant Endless Summer® where it will receive full morning sun and dappled afternoon shade. Gardeners in zones 8 and 9 will do well to select a location with only a few hours of full sunlight. 

Loamy, organic soil is what Endless Summer® hydrangeas enjoy. Consider making raised beds to plant these hydrangeas if your site has poor drainage. For plants like Endless Summer Blue® and Endless Summer Bloomstruck®, soils with pH below 6.0 will cause blue blooms, and alkaline soils will cause your hydrangea to shift to red.  

Endless Summer® Hydrangea Size and Cold Hardiness 

Endless Summer® hydrangeas are mid-sized and compact. Most varieties do not exceed about 4-5 feet tall and 3-4 feet wide. They will be more compact if grown in a container. 

These hydrangeas are hardy in USDA zones 4 or 5 to about zone 9. For chillier areas, mulching around the base of the plant in fall and wrapping it in burlap for the winter can help. Bring it inside if you planted it in a container and store it in a garage or basement. Don’t let it dry out.

Endless Summer® Hydrangea Fertilizer & Watering

Hydrangeas do not often need fertilizer if planted in richly organic soil. They can be fed once per year in spring with a general-purpose slow-release product. Too much fertilizer may cause a considerable growth of stems and leaves but inhibit flowering.

Water well and regularly during the first growing season. A drip line makes summer watering easy if you have a more extensive planting of hydrangeas.  

Any good-quality potting mix is suitable to grow your Endless Summer® hydrangeas in a container. Add a little perlite to aid drainage and keep the soil loose. Remember to adjust the pH to achieve the color blooms you desire.

Adding mulch around your new hydrangeas reduces watering requirements and will keep the weeds down. Even plants in containers can be mulched.

Endless Summer® Hydrangea Pruning

Like other Bigleaf varieties, these hydrangeas flower on old wood. But, the Endless Summer® line will also bloom on new wood later in the summer. They do not need pruning but can be pruned to keep their shape and remove dead or broken branches. Deadheading can be done in late winter. 

Keep in mind that pruning may remove some flower buds. Heavy pruning is often the reason for the lack of blooms later in the year.

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