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dark blue hydrangea

If you’re searching for a vibrant and captivating addition to your garden, a dark blue hydrangea is the perfect choice to deliver stunning colour and year-round interest. With their rich, dramatic blooms, blue hydrangeas add a touch of elegance to garden beds, shaded corners, and even patio pots. Their striking flower heads bring a sense of calm and depth to your outdoor space, and they’re renowned for captivating as both feature plants and backdrop shrubs. Whether you’re new to hydrangeas or a lover of these old-fashioned favourites, growing a dark blue hydrangea in New Zealand is a rewarding experience—with a little know-how, you can enjoy that coveted, intensely blue colour.

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Dichroa Blue Stars (Evergreen Hydrangea)

5 from 4 customers

Dichroa 'Blue Stars' is a striking evergreen shrub admired for its clusters of intense blue star shaped flowers followed by brilliant metallic blue berries. The combination of vivid blooms and glossy fruit creates outstanding seasonal interest from summer into autumn. Ideal for New Zealand gardens, this unique shrub adds bold colour, texture, and year round structure to sheltered borders and woodland style plantings.

Suited to regions: All regions
Plant type: Shrubs
Height: 1.50 m
Spread: 1.50 m
Flowering time: Spring, Summer
Tolerances: Hardy
Garden uses: Living areas, Pool areas
Garden styles: Alpine, Backyard, City & Courtyard, Frontyard, Japanese, Modern, Rock
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Hydrangea Nightingale

5 from 3 customers

Hydrangea 'Nightingale' is a graceful lacecap hydrangea known for its soft blue fertile florets surrounded by delicate pale blue sterile flowers. This elegant bloom structure is complemented by lush green foliage, making it ideal for cottage gardens, woodland borders, or shaded areas. ‘Nightingale’ thrives in part-shade with moist, well-drained, slightly acidic soil and performs beautifully in New Zealand conditions. Its refined flower form and gentle colouring add a timeless charm to any garden setting.

Suited to regions: All regions
Plant type: Shrubs
Height: 1.20 m
Spread: 1.20 m
Flowering time: Spring, Summer, Autumn
Tolerances: Hardy
Garden uses: Containers, Hedging, Living areas
Garden styles: Alpine, Backyard, City & Courtyard, Cottage, Formal, Frontyard, Japanese, Modern, Rock
hydrangea-mariesii-perfecta-3

Hydrangea Mariesii Perfecta

Hydrangea 'Mariesii Perfecta' is a stunning lacecap hydrangea celebrated for its vivid blue or pink outer florets surrounding fertile central blooms...

From$29.63
A purple-blue Hydrangea 'Renate Steiniger' flower.

Hydrangea Renate Steiniger

Hydrangea 'Renate Steiniger' is a vibrant mophead variety renowned for its large, vivid blue flower heads when grown in acidic soil. Its strong stems...

From$29.63
hydrangea-serrata-blue-deckle-1

Hydrangea Blue Deckle

Hydrangea 'Blue Deckle' is a graceful lacecap hydrangea admired for its soft blue florets and finely serrated petal edges that lend a delicate...

From$29.63
Gorgeous Hydrangea macrophylla 'Ayesha' pink flowers.

Hydrangea Ayesha

Hydrangea 'Ayesha' is a distinctive variety prized for its lilac-like flower clusters and subtle fragrance. The waxy, spoon-shaped petals and glossy...

From$29.63
hydrangea-macrophylla-blue-wave-2

Hydrangea Blue Wave

Hydrangea 'Blue Wave' is an elegant lacecap variety known for its soft sky-blue fertile florets surrounded by paler, petal-like sepals. This graceful...

From$29.63
Hydrangea 'Blueberries and Cream' blue flower with cream-coloured florets.

Hydrangea 'Blueberries and Cream'

Hydrangea 'Blueberries and Cream' is a stunning deciduous shrub admired for its beautiful lacecap flowers featuring creamy white outer florets...

From$29.63
Podocarpus 'Matapouri Blue' hedge.

Podocarpus Matapouri Blue (Blue Tōtara)

Podocarpus ‘Matapouri Blue’, also known as Blue Totara, is a stunning New Zealand native tree prized for its striking blue-green foliage and tidy...

From$432.79
Hydrangea 'Libelle' lacecap white and blue flowers.

Hydrangea Libelle

Hydrangea 'Libelle' is a graceful lacecap hydrangea renowned for its pure white sterile florets that elegantly frame a centre of tiny fertile...

From$29.63
Dianella revoluta 'Blue Twist' plant.

Dianella Blue Twist

Dianella Blue Twist bears spikes that may reach 1 m in length carrying delicate, light blue flowers. These are held above the blue-green, strap-like...

From$18.83
Hydrangea 'Mariko' purple and white flower.

Hydrangea Mariko

Hydrangea 'Mariko' is a compact and elegant variety that produces clusters of soft pink or blue flowers, depending on soil pH. Perfect for smaller...

From$29.63
perovskia-blue-spire-

Perovskia Blue Spire (Russian Sage Plant)

The Perovskia Blue Spire plant, commonly known as the Russian Sage Plant, is a small shrub grown for its fine foliage and impressive flowers. Masses...

From$24.23
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Prostanthera Eddington Blue (Mint Bush Plant)

Prostanthera Eddington Blue is an evergreen shrub grown for its foliage and flowers. It features small and glossy, green leaves which are highly...

From$26.93
Beautiful purple flowers on the Hydrangea Bloody Marvellous.

Hydrangea Bloody Marvellous

Hydrangea 'Bloody Marvellous' lives up to its name with spectacular deep red blooms that create a bold statement in any garden. This red-flowering...

From$29.63
phlebodium-blue-star-

Phlebodium aureum Blue Star (Blue Star Fern)

The Blue Star Fern features wavy leaves that are a blue-green colour. This popular indoor plant grows as a clump to about 30 cm tall and the same...

From$37.73
Liriope muscari 'Blue Skies' plant with blue flowers and green foliage in a garden.

Liriope 'Blue Skies'

Liriope 'Blue Skies' is a blue-flowering Liriope that forms a tidy clump and features strap-like, dark green leaves. Flower spikes rise above the...

From$18.83
Hydrangea paniculata 'Candlelight' showy, pink and white flowers.

Hydrangea 'Candlelight'

Hydrangea 'Candlelight' is an award-winning deciduous shrub known for its striking conical flower heads that emerge creamy white in summer and...

From$29.63
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Cupressus Blue Ice (Blue Arizona Cypress)

Cupressus Blue Ice is a popular and versatile plant suitable for New Zealand gardens, offering year-round interest and unique appeal.

From$176.17
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Helictotrichon sempervirens (Blue Oatgrass)

Helictotrichon sempervirens, commonly known as Blue Oatgrass, is a lovely and popular ornamental grass featuring distinct, blue foliage. It grows as...

From$16.88
juncus-blue-dart-

Juncus Blue Dart (Blue Rush)

Juncus Blue Dart is a popular ornamental grass that features rigid leaves that are a fantastic shade of blue. It typically grows to 30 cm tall and...

From$17.89
Hydrangea macrophylla 'Leuchtfeuer' pink and cream-coloured flowers.

Hydrangea 'Leuchtfeuer'

Hydrangea 'Leuchtfeuer' is a vibrant mophead hydrangea celebrated for its large rounded blooms in intense deep red to crimson tones. This striking...

From$29.63
Hydrangea serrata 'Preziosa' cream coloured flower above dark green foliage.

Hydrangea serrata Preziosa

Hydrangea serrata 'Preziosa' is a captivating lacecap variety that evolves in colour throughout the season, starting with pink blooms that deepen to...

From$29.63
hydrangea-quercifolia-snowflake-2

Hydrangea quercifolia Snowflake

Hydrangea quercifolia 'Snowflake' is a spectacular oakleaf hydrangea, prized for its large, cascading double white flower panicles that bloom in...

From$29.63
Hydrangea Princess Juliana young, cream coloured flowers.

Hydrangea Princess Juliana

Hydrangea 'Princess Juliana' is a refined mophead variety celebrated for its large, pure white flower heads and classic garden appeal. The clean...

From$29.63
Hydrangea 'You Me Together' flower with cream and pink florets.

Hydrangea 'You Me Together'

Hydrangea 'You Me Together' is a beautiful compact shrub admired for its fully double pink flower heads that create a lush romantic display through...

From$29.63
hydrangea-macrophylla-geoffrey-chadbund-1

Hydrangea Geoffrey Chadbund

Hydrangea 'Geoffrey Chadbund' is a charming mophead variety featuring rich pink flower heads that bring classic elegance to any garden space. With a...

From$29.63
Hydrangea petiolaris white flowers and green foliage.

Hydrangea petiolaris

Hydrangea petiolaris is a climbing hydrangea that grows as a vigorous, self-clinging deciduous climber that produces flat white lacecap blooms in...

From$40.43
A Hydrangea 'Merveille Sanguine' shrub displaying showy, red flowers with purple foliage.

Hydrangea Merveille Sanguine

Hydrangea 'Merveille Sanguine' is a dramatic mophead variety known for its rich burgundy-red flower heads and deep green to bronzed foliage. This...

From$29.63
Hydrangea 'Bridal Bouquet' elegant cream-white flowers.

Hydrangea Bridal Bouquet

Hydrangea 'Bridal Bouquet' is a graceful and timeless variety featuring pure white mophead blooms that evoke elegance and charm. This classic shrub...

From$29.63
hydrangea-seemanii-

Hydrangea seemanii

Hydrangea seemannii is a rare and attractive evergreen climbing hydrangea, perfect for adding year-round foliage and seasonal blooms to vertical...

From$43.13
Hydrangea 'Saxon Pink Maiden' pink and cream flower head with dark green foliage.

Hydrangea 'Saxon Pink Maiden'

Hydrangea 'Saxon Pink Maiden' is a beautiful deciduous shrub admired for its vibrant pink mophead flowers that bring cheerful summer colour to New...

From$29.63
Dichroa Blue Stars (Evergreen Hydrangea)

Did you find what you are looking for?

You might be interested in exploring related Latin Names - Cupressus, Dianella, Dichroa, Helictotrichon, Hydrangea, Juncus, Liriope, Perovskia, Phlebodium Podocarpus and Prostanthera, or related Categories - Deciduous Climbers, Evergreen Climbers, Conifer Trees, Flaxes, Grasses, Indoor Plants, Deciduous Shrubs Evergreen Shrubs and Evergreen Trees.

Search dark blue hydrangea

What Makes a Hydrangea Bloom Dark Blue?

The secret behind a true dark blue hydrangea lies in both variety and soil chemistry. Most commonly, mophead or lacecap hydrangeas can display blue hues, but only when grown in acidic soil with ample aluminium. The more acidic your soil (ideally with a pH of 5 to 5.5), the richer the blue. Amend alkaline soils with garden sulphur or aluminium sulphate to intensify your flowers. For those who want a guaranteed shade, consider varieties bred for their impactful colour, such as Hydrangea Nightingale with its saturated violet-blue blooms, or the much-loved Hydrangea Mariesii Perfecta.

Top Dark Blue Hydrangea Varieties for New Zealand Gardens

Choosing the perfect dark blue hydrangea for your garden depends on flower form, growth habit, and how it fits with your landscape. Some favourites include:

For gardeners seeking something a little different, Dichroa Blue Stars (Evergreen Hydrangea) offers incredible blue berry-like fruit after flowering, along with stunning blue blooms, on an evergreen shrub.

Growing Tips for Intense Blue Colour

To achieve and maintain that sought-after dark blue hydrangea shade, plant in dappled shade with well-drained, moisture-retentive soil. Be sure to mulch with leaf mould or pine needles and water deeply during dry spells. Test your soil pH and adjust as needed with acidifying agents. Feed with a hydrangea-specific fertiliser low in phosphorus to avoid pinking. Prune after flowering to encourage robust new growth and more flower heads next season.

Hydrangea Companion Planting and Design Ideas

Dark blue hydrangeas make a dramatic statement paired with silver-leaved foliage, white-flowering perennials, and woodland natives. Their long-lasting blooms are ideal for cut flower arrangements, drying, and adding structure to informal borders. For extended seasonal interest, combine classic hydrangeas with Dichroa Blue Stars (Evergreen Hydrangea), which holds its evergreen leaves all year.

Bring the Richest Blue to Your Garden

A dark blue hydrangea brings unrivalled richness, charm, and easy-care beauty to Kiwi gardens. Explore your favourite varieties such as Hydrangea Mariesii Perfecta, Hydrangea Nightingale, Hydrangea Garten Baudirektor Kuhnert, and Hydrangea Renate Steiniger to find your perfect match and enjoy a garden awash in true, vivid blue.


Contact us

Whether you need assistance finding the plant you’re looking for or you simply want to know more about who we are and what we do, we invite you to get in touch with us today. A member of The Plant Company team will get back in touch as soon as possible.

–The Plant Company

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