Hydrangea Altona

Hydrangea 'Altona' is a traditional mophead variety prized for its large, vivid blue flower clusters—especially striking in acidic soils. With its strong, upright growth and lush green foliage, it’s ideal for borders, feature planting, or containers. Blooming reliably from early to late summer, ‘Altona’ thrives in part-shade with moist, well-drained soil and performs well across New Zealand. This variety is a long-time garden favourite, offering classic hydrangea beauty with rich seasonal colour.

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Suited to regions:	All regions
Plant type:	Shrubs
Height:	2.00 m
Spread:	1.50 m
Flowering time:	Summer, Autumn
Tolerances:	Hardy
Garden uses:	Containers, Hedging, Living areas
Garden styles:	Alpine, Backyard, City & Courtyard, Cottage, Formal, Frontyard, Japanese, Modern
Easy to grow?	Yes
Maintenance requirements	Some
Growth rate	Medium
Also known as
Sku	14777

What are the garden uses for Hydrangea Altona in NZ?

Hydrangea Altona is a much-loved shrub in NZ gardens. It is most commonly grown as specimen, used as an informal hedge, added to a mixed planting, or planted as a backdrop for smaller plants. It is a great complement to a modern or cottage garden, bringing both colour and elegance to a space. It is the gorgeous foliage and beautiful flowers of this plant that makes Hydrangea Altona an excellent choice for a NZ garden.

What does the Altona Hydrangea need to grow well?

The Altona Hydrangea grows best when positioned in full sun or partial shade on a well-drained soil that is slightly acidic. It is tolerant of frost, cool climates, coastal environments, and humid climates. Wind protection is important to ensure branches are not snapped and this will also result in a better formed plant that will flower more prolifically.