Hydrangea serrata 'Pink Dynamo'

Hydrangea serrata 'Pink Dynamo': Hot-Pink Lacecaps on Jet-Black Foliage

Hydrangea serrata 'Pink Dynamo' brings bold colour and modern contrast to the garden, pairing vivid hot-pink lacecap blooms with smooth, black foliage. Flowers rebloom from early summer into fall, keeping the plant lively for months and ensuring there is always fresh colour on display. Its compact, mounding habit makes it easy to tuck into smaller beds and front borders, where the dark leaves can be appreciated up close. Striking and surprisingly versatile, it adds instant energy to shade-edged plantings and part-sun gardens.

Plant Characteristics:

• Height: 2–3’
• Spread: 2–3’
• Flower Colour: Hot-pink lacecap flowers
• Flowering Period: Early summer into fall (rebloomer)
• Foliage: Smooth black foliage
• Sunlight Requirements: Full Sun to Part Shade
• Soil Requirements: Moist, well-drained soil, enriched with organic matter

Uses and Benefits: Perfect for front-of-border colour, foundation plantings, and patio-side beds where the foliage contrast can shine. The compact size works well in repeating groups, creating a strong rhythm of dark leaves and bright bloom. It also brings a fresh, contemporary look to mixed shrub borders and makes an excellent accent in part-shade gardens that need reliable summer-to-fall colour.

Care Instructions: Water regularly during the first season to establish strong roots, then maintain even moisture during hot, dry stretches for best flowering. Mulch helps conserve moisture and keeps the root zone cooler in summer. Prune lightly in early spring to remove any winter damage and tidy the shape, and avoid heavy pruning so the plant can continue its reblooming performance. A spring top-dressing of compost supports healthy foliage and steady growth.

History: A standout mountain hydrangea selection, 'Pink Dynamo' was chosen for its extended reblooming season and its unusual combination of hot-pink lacecap flowers against dark, nearly black foliage. The high-contrast look brings a distinctive, designer-friendly twist to the classic hydrangea palette.

Final Thoughts: For gardeners who want strong colour with sleek foliage and a long flowering season, Pink Dynamo delivers a confident, modern statement in a compact and easy-to-place shrub.