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Posted 06/29/2024 in Shrub

Hydrangea macrophylla Endless Summer

Hydrangea macrophylla 'Endless Summer': A Garden Gem

Description of Hydrangea macrophylla 'Endless Summer' 

Hydrangea macrophylla 'Endless Summer' is a remarkable cultivar renowned for its prolific blooming and stunning flowers. This deciduous shrub typically reaches a height and spread of 3-4 feet, making it a versatile addition to gardens of all sizes. Its lush, dark green leaves provide a beautiful backdrop to its true star—the flowers.

The flowers of 'Endless Summer' are large, mophead blooms that can range in color from vivid blue to soft pink, depending on the soil's pH level. Acidic soils (pH below 6) will produce blue flowers, while alkaline soils (pH above 7) will yield pink blooms. This unique characteristic allows gardeners to experiment with soil amendments to achieve their desired flower color.

Hydrangea macrophylla 'Endless Summer' Value in the Landscape

Hydrangea macrophylla 'Endless Summer' offers exceptional value in the landscape. Its ability to bloom on both old and new wood ensures a continuous display of flowers from spring through fall, unlike traditional hydrangeas that may only bloom once a season. This extended blooming period provides a long-lasting source of color and interest.

The shrub's compact size makes it ideal for foundation plantings, borders, and as a focal point in mixed garden beds. It also performs well in containers, allowing those with limited space to enjoy its beauty. 'Endless Summer' can brighten up shady areas of the garden where other plants might struggle, as it thrives in partial shade.

Interesting Facts About Hydrangea macrophylla 'Endless Summer' 

Reblooming Capability: 'Endless Summer' was the first hydrangea cultivar to offer the unique trait of blooming on both old and new wood, which revolutionized hydrangea cultivation and increased its popularity among gardeners.

Soil pH Sensitivity: The ability of 'Endless Summer' to change flower color based on soil pH is not just a fascinating trait but also a practical one, allowing gardeners to personalize their garden's color scheme.

Cold Hardy: Unlike many hydrangeas, 'Endless Summer' is quite hardy and can withstand colder climates (USDA zones 4-9). This resilience makes it a reliable choice for gardeners in a variety of regions.

Symbolism: Hydrangeas are often associated with heartfelt emotions and gratitude. In some cultures, they are also believed to convey understanding and apology, making 'Endless Summer' a meaningful addition to gardens dedicated to memory or sentiment.

Hydrangea macrophylla 'Endless Summer' is a standout choice for any garden. Its beautiful, long-lasting blooms, adaptability, and fascinating characteristics make it a beloved plant for both novice and experienced gardeners alike. Whether you are looking to add a pop of color to your landscape or create a serene garden retreat, 'Endless Summer' will not disappoint.

Other Plants You May Be Interested In:

Spirea japonica 'Anthony Waterer'

Echinacea 'Cheyenne Spirit'

About RightPlantz - RightPlantz is your go-to source for all things gardening. RightPlantz grows better gardeners.

Post Details

Latin Name
Hydrangea macrophylla Endless Summer
Common Name
Endless Summer Hydrangea
Planting Zone
Zone 6 Zone 7 Zone 8 Zone 9
Light Condition
Full Sun Part Shade
Leaf Type
Deciduous
Special Interest
Attracts Butterflies
Bloom Season
Spring
Flower Color
Pink Blue
Height
4'
Spread
4'
Suggested Uses
Grouping Accent Cottage Garden Pollinator Garden Formal Garden Mass
Potential Pests
Be on the look out for these potential pests and diseases of Hydrangea macrophylla 'Endless Summer: Aphids, Spider mites, Scale insects, Leaf spots, Powdery mildew, Rust, Cercospora, leaf spot ,Botrytis blight, Root rot, Slugs and snails

Plant Story

Hydrangea macrophylla 'Endless Summer': A Garden Gem

Description of Hydrangea macrophylla 'Endless Summer' 

Hydrangea macrophylla 'Endless Summer' is a remarkable cultivar renowned for its prolific blooming and stunning flowers. This deciduous shrub typically reaches a height and spread of 3-4 feet, making it a versatile addition to gardens of all sizes. Its lush, dark green leaves provide a beautiful backdrop to its true star—the flowers.

The flowers of 'Endless Summer' are large, mophead blooms that can range in color from vivid blue to soft pink, depending on the soil's pH level. Acidic soils (pH below 6) will produce blue flowers, while alkaline soils (pH above 7) will yield pink blooms. This unique characteristic allows gardeners to experiment with soil amendments to achieve their desired flower color.

Hydrangea macrophylla 'Endless Summer' Value in the Landscape

Hydrangea macrophylla 'Endless Summer' offers exceptional value in the landscape. Its ability to bloom on both old and new wood ensures a continuous display of flowers from spring through fall, unlike traditional hydrangeas that may only bloom once a season. This extended blooming period provides a long-lasting source of color and interest.

The shrub's compact size makes it ideal for foundation plantings, borders, and as a focal point in mixed garden beds. It also performs well in containers, allowing those with limited space to enjoy its beauty. 'Endless Summer' can brighten up shady areas of the garden where other plants might struggle, as it thrives in partial shade.

Interesting Facts About Hydrangea macrophylla 'Endless Summer' 

Reblooming Capability: 'Endless Summer' was the first hydrangea cultivar to offer the unique trait of blooming on both old and new wood, which revolutionized hydrangea cultivation and increased its popularity among gardeners.

Soil pH Sensitivity: The ability of 'Endless Summer' to change flower color based on soil pH is not just a fascinating trait but also a practical one, allowing gardeners to personalize their garden's color scheme.

Cold Hardy: Unlike many hydrangeas, 'Endless Summer' is quite hardy and can withstand colder climates (USDA zones 4-9). This resilience makes it a reliable choice for gardeners in a variety of regions.

Symbolism: Hydrangeas are often associated with heartfelt emotions and gratitude. In some cultures, they are also believed to convey understanding and apology, making 'Endless Summer' a meaningful addition to gardens dedicated to memory or sentiment.

Hydrangea macrophylla 'Endless Summer' is a standout choice for any garden. Its beautiful, long-lasting blooms, adaptability, and fascinating characteristics make it a beloved plant for both novice and experienced gardeners alike. Whether you are looking to add a pop of color to your landscape or create a serene garden retreat, 'Endless Summer' will not disappoint.

Other Plants You May Be Interested In:

Spirea japonica 'Anthony Waterer'

Echinacea 'Cheyenne Spirit'

About RightPlantz - RightPlantz is your go-to source for all things gardening. RightPlantz grows better gardeners.

Special Care Instructions

Special Care Instructions for Hydrangea macrophylla 'Endless Summer'

Planting:

  • Location: Choose a spot with morning sun and afternoon shade. Too much sun can scorch the leaves, while too much shade can reduce flowering.
  • Soil: Plant in well-draining soil rich in organic matter. Amend heavy clay soils with compost to improve drainage.

Watering:

  • Regular Watering: Keep the soil consistently moist, especially during dry periods. Water deeply once a week, ensuring the water reaches the roots.
  • Mulching: Apply a 2-3 inch layer of mulch around the base of the plant to retain moisture and regulate soil temperature.

Fertilizing:

  • Spring Feeding: Use a balanced, slow-release fertilizer in early spring as new growth begins.
  • Mid-Season Boost: Apply a second dose of fertilizer in mid-summer to encourage continuous blooming. Avoid high-nitrogen fertilizers, which can promote leaf growth at the expense of flowers.

Pruning:

  • Minimal Pruning: Prune sparingly. Remove dead or damaged wood in early spring. Deadhead spent blooms to encourage new flowers.
  • Shape Maintenance: Lightly shape the plant after the first flush of blooms, being careful not to remove too much growth as 'Endless Summer' blooms on both old and new wood.

Winter Protection:

  • Mulching: Apply a thick layer of mulch around the base of the plant in late fall to protect the roots from freezing temperatures.
  • Covering: In colder climates, consider covering the plant with burlap or a breathable fabric to shield it from harsh winter winds.

Pest and Disease Management:

  • Inspect Regularly: Check for pests such as aphids, spider mites, and scale insects. Treat infestations promptly with insecticidal soap or neem oil.
  • Disease Prevention: Ensure good air circulation around the plant to prevent fungal diseases like powdery mildew and leaf spots. Water at the base of the plant to keep the foliage dry.

Flower Color Management:

  • pH Adjustment: To maintain blue flowers, keep the soil pH between 5.2 and 5.5. For pink flowers, aim for a pH of 6.0 to 6.2. Use soil pH test kits to monitor and adjust accordingly.
  • Soil Amendments: Add garden sulfur or aluminum sulfate to acidify the soil for blue flowers. Add lime to raise the pH for pink flowers.

General Tips:

  • Transplanting: If needed, transplant in early spring or fall when the plant is dormant. Water thoroughly after transplanting.
  • Companion Planting: Pair 'Endless Summer' with shade-tolerant perennials like hostas, ferns, and astilbes for a beautiful garden combination.

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