Hydrangea macrophylla 'Endless Summer'

Hydrangea macrophylla 'Endless Summer': The Original Reblooming Mophead

Hydrangea macrophylla 'Endless Summer' is the signature shrub of the Endless Summer® Collection, prized for its ability to flower again and again through the season. Rounded mophead blooms open in shades of pink or blue depending on soil pH, then continue to appear on new growth in spring and summer, with additional flowering on older stems later in the season. The lush green foliage gives it a full, classic hydrangea look, while the long bloom window keeps gardens colourful from early summer right to frost. Its rounded habit makes it easy to tuck into borders, foundations, and patio plantings where dependable colour is a must.

Plant Characteristics:

• Height: 3–5’
• Spread: 3–5’
• Flower Colour: Pink or blue, depending on soil pH
• Flowering Period: Early summer to frost (rebloomer)
• Foliage: Green, deciduous shrub foliage
• Sunlight Requirements: Full Sun to Part Shade
• Soil Requirements: Moist, well-drained soil, enriched with organic matter

Uses and Benefits: A dependable choice for foundation plantings, mixed shrub borders, and feature beds where you want long-season colour and a classic mophead look. The colour-shifting nature is a design bonus, letting it lean pink in neutral soils or blue in more acidic conditions. It also performs beautifully near patios and entrances where the blooms can be enjoyed up close, and it makes a lovely cut flower for fresh arrangements.

Care Instructions: Water regularly during the first season to establish, then maintain even moisture through summer for best flowering. Mulch helps conserve moisture and protect roots. Bigleaf hydrangeas prefer gentle pruning, so focus on removing winter-damaged wood in spring and deadheading spent blooms. If shaping is needed, do it lightly after the first flush of flowers. Feed in spring with compost or a balanced slow-release fertilizer, and provide some afternoon shade in hotter exposures to keep foliage looking fresh.

History: Also known as Endless Summer® The Original (cultivar 'Bailmer'), this introduction helped redefine bigleaf hydrangeas in northern gardens by bringing reliable reblooming performance and a long flowering season to a classic mophead form.

Final Thoughts: For gardeners who want a true summer-long hydrangea show with classic mophead beauty, Endless Summer remains a trusted favourite that keeps the landscape colourful right into fall.