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Hydrangea macrophylla 'So Long Rosy' (‘COUMO’) is a compact, long-flowering deciduous shrub prized for its vibrant mophead blooms and tidy, rounded habit. From early summer through to autumn, it produces an abundance of dome-shaped flowerheads that open in soft rose-pink and deepen to rich pink or violet tones, depending on soil pH. This continuous blooming makes it a standout feature in borders, containers, or shaded courtyard gardens.
Ideal for smaller spaces, it typically grows to around 3–4 feet tall and wide, forming a dense, bushy mound of dark green, serrated foliage. The lush leaves provide a fresh backdrop to the abundant blooms, maintaining a polished appearance even in high summer. Its compact nature and long season of interest make it perfect for front-of-border planting or as a striking specimen in a patio pot.
Thriving in part shade and moist, well-drained, humus-rich soil, ‘So Long Rosy’ is both easy to grow and generous with its display. A sheltered position away from harsh afternoon sun will encourage the best colour and performance, especially during dry spells.
Flowering Period
June: First flush of rounded rose-pink mophead blooms appear
July – September: Continuous blooming, deepening in colour with age
October: Late blooms linger into autumn, foliage remains vibrant
A refined and rewarding shrub, Hydrangea macrophylla ‘So Long Rosy’ (‘COUMO’) brings lasting colour, softness, and structure to shaded and semi-shaded garden spaces.
Hydrangea macrophylla 'So Long Rosy' (‘COUMO’) is a compact, long-flowering deciduous shrub prized for its vibrant mophead blooms and tidy, rounded habit. From early summer through to autumn, it produces an abundance of dome-shaped flowerheads that open in soft rose-pink and deepen to rich pink or violet tones, depending on soil pH. This continuous blooming makes it a standout feature in borders, containers, or shaded courtyard gardens.
Ideal for smaller spaces, it typically grows to around 3–4 feet tall and wide, forming a dense, bushy mound of dark green, serrated foliage. The lush leaves provide a fresh backdrop to the abundant blooms, maintaining a polished appearance even in high summer. Its compact nature and long season of interest make it perfect for front-of-border planting or as a striking specimen in a patio pot.
Thriving in part shade and moist, well-drained, humus-rich soil, ‘So Long Rosy’ is both easy to grow and generous with its display. A sheltered position away from harsh afternoon sun will encourage the best colour and performance, especially during dry spells.
Flowering Period
June: First flush of rounded rose-pink mophead blooms appear
July – September: Continuous blooming, deepening in colour with age
October: Late blooms linger into autumn, foliage remains vibrant
A refined and rewarding shrub, Hydrangea macrophylla ‘So Long Rosy’ (‘COUMO’) brings lasting colour, softness, and structure to shaded and semi-shaded garden spaces.