Hydrangea macrophylla Blue – Classic Blue Mophead Hydrangea for Summer Colour
Hydrangea macrophylla Blue is a timeless garden favourite, producing large rounded flower heads in rich shades of blue from summer into early autumn. The bold mophead blooms create a strong visual impact, bringing colour and softness to borders and garden spaces.
The intensity of the blue colour can vary depending on soil conditions, with acidic soils producing the deepest blue tones. The flowers are set against a backdrop of lush green foliage, creating a full and vibrant shrub throughout the growing season.
With its naturally bushy, compact habit, this hydrangea is ideal for borders, containers, and shaded areas of the garden. It is particularly effective in cottage-style planting schemes or as a feature shrub where its large blooms can be appreciated up close.
Thriving in sun or partial shade, Hydrangea macrophylla prefers moist, well-drained soil and benefits from regular watering during dry spells. As it flowers on old wood, pruning should be kept to a minimum—simply removing spent flower heads and any dead stems.
Reliable, colourful, and easy to grow, Hydrangea macrophylla Blue is an excellent choice for adding long-lasting summer interest to UK gardens.
Seasonal Highlights
Spring: Fresh green foliage emerges.
Summer: Large blue flower heads bloom.
Late Summer–Autumn: Flowers persist and may develop softer tones.
Winter: Bare stems remain until spring growth returns.
Key Features
Blue mophead flowers – Classic garden favourite.
Colour-changing potential – Blue tones deepen in acidic soil.
Lush foliage – Full, healthy appearance.
Long flowering season – Summer to autumn.
Hardy shrub – Reliable performance.
Perfect For
Borders – Seasonal colour and structure.
Containers – Patio planting.
Cottage gardens – Traditional planting schemes.
Shaded areas – Thrives in partial shade.
Feature shrubs – Standout summer blooms.
Growing Tips
Sun/Position: Full sun to partial shade; avoid strong midday sun.
Soil: Moist, well-drained soil; acidic soil enhances blue colour.
Hardiness: Fully hardy across the UK.
Care: Minimal pruning; remove spent blooms in spring and protect buds from late frost.