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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.

From $30.29

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
A purple-blue Hydrangea 'Renate Steiniger' flower.

Hydrangea 'Renate Steiniger'

5 from 1 customers

Hydrangea 'Renate Steiniger' is a stunning deciduous shrub admired for its vibrant rounded flower heads and lush green foliage. Flowering abundantly through summer, this eye catching hydrangea creates a brilliant display of seasonal colour that brightens New Zealand gardens and outdoor spaces.

From $21.95

Suited to regions: All regions
Plant type: Shrubs
Height: 1.20 m
Spread: 1.20 m
Flowering time: Summer, Autumn
Tolerances: Hardy
Garden uses: Containers, Hedging, Living areas
Garden styles: Alpine, Backyard, City & Courtyard, Formal, Frontyard, Japanese, Modern, Rock
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$21.95
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$30.29
Wisteria 'Blue Sapphire' cluster of colourful blue flowers.
Wisteria 'Blue Sapphire'

Wisteria ‘Blue Sapphire’ is a stunning flowering climber prized for its long elegant racemes of rich blue violet flowers that appear in spring. This...

From$29.95
prostanthera-eddington-blue-
Prostanthera 'Eddington Blue'

Prostanthera 'Eddington Blue' is a stunning evergreen shrub admired for its masses of vibrant blue mauve flowers and highly aromatic foliage. This...

From$27.53
Large Jacaranda mimosifolia tree with blue flowers.
Jacaranda mimosifolia (Blue Jacaranda)

Jacaranda mimosifolia, commonly known as the Blue Jacaranda tree, is a tropical-looking tree that is widely planted because of its beautiful and...

From$323.65
dianella-revoluta-kentlyn--2
Dianella Kentlyn

Dianella Kentlyn is a variety of the commonly known, Flax Lily, produces upright, strap-like leaves which are a rich, dark green with a blue...

From$16.49
A Picea pungens 'Glauca' (Colorado Blue Spruce) tree.
Picea pungens Glauca

Picea pungens 'Glauca', commonly known as the Colorado Blue Spruce, is a blue coloured conifer that grows with a broad and open, pyramidal shape. The...

From$515.35
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$38.57
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$14.50
Stunning, dark blue flowers on Salvia 'Blue Angel].
Salvia 'Blue Angel'

Salvia 'Blue Angel' is a beautiful perennial known for its soft blue flower spikes that appear generously across summer and autumn in New Zealand...

From$27.53
Hydrangea Princess Juliana young, cream coloured flowers.
Hydrangea 'Princess Juliana'

Hydrangea 'Princess Juliana' is a beautiful deciduous shrub admired for its large rounded flower heads and lush green foliage. Flowering generously...

From$27.95
hydrangea-paniculata-levana-
Hydrangea paniculata 'Levana'

Hydrangea 'Levana' is a spectacular deciduous shrub admired for its enormous cone shaped flower heads and lush green foliage. Flowering abundantly...

From$27.95
cupressus-blue-ice-4
Cupressus 'Blue Ice' (Blue Arizona Cypress)

Cupressus 'Blue Ice' is a striking evergreen conifer admired for its vibrant icy blue foliage and strong upright growth habit. This hardy tree...

From$270.40
hydrangea-macrophylla-geoffrey-chadbund-1
Hydrangea 'Geoffrey Chadbund'

Hydrangea 'Geoffrey Chadbund' is a beautiful deciduous shrub admired for its large rounded flower heads and lush green foliage. Flowering through...

From$27.95
hydrangea-mrs-kumiko-
Hydrangea 'Mrs Kumiko'

Hydrangea 'Mrs Kumiko' is a graceful deciduous shrub admired for its elegant flower heads and lush green foliage. Flowering generously through...

From$27.95
Pittosporum 'Wrinkled Blue' speciment tree.
Pittosporum 'Wrinkled Blue'

Pittosporum ‘Wrinkled Blue’ is an attractive, upright evergreen tree known for its distinctive blue-grey foliage and dense, columnar growth habit...

From$22.01
hydrangea-macrophylla-masja-
Hydrangea 'Masja'

Hydrangea 'Masja' is a compact deciduous shrub admired for its vibrant rounded flower heads and lush dark green foliage. Flowering abundantly through...

From$21.95
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$27.95
Agapanthus 'Blue Finn' blue flower.
Agapanthus 'Blue Finn'

Agapanthus 'Blue Finn' is a compact, evergreen variety prized for its deep blue blooms and tidy, clumping habit. This hardy perennial adds a burst of...

From$22.95
Hydrangea paniculata 'Kyushu' shrub with masses of white flowers.
Hydrangea 'Kyushu'

Hydrangea 'Kyushu' is a graceful deciduous shrub admired for its elegant white lacecap flowers and lush green foliage. Flowering through summer, this...

From$27.95
A large Phormium 'Dark Delight' plant with elegant, purple foliage.
Phormium 'Dark Delight'

Phormium 'Dark Delight', also known as Dark Purple Flax, is a bold New Zealand native flax prized for its broad, upright leaves in deep purple to...

From$17.95
A Rosemary 'Blue Lagoon' shrub with blue flowers in a mixed planting.
Rosmarinus 'Blue Lagoon'

Rosmarinus ‘Blue Lagoon’ is a hardy, evergreen shrub prized for its aromatic foliage and vibrant deep blue flowers. Blooming from late winter through...

From$22.01
An upright Rosemary 'Tuscan Blue' shrub with blue flowers in a Mediterranean themed garden.
Rosmarinus 'Tuscan Blue'

The 'Tuscan Blue' Rosemary is a fast-growing and upright variety that features petite, sky-blue flowers borne amidst the dark green leaves through...

From$22.01
A Hydrangea 'Strawberries and Cream' red and cream flower.
Hydrangea 'Strawberries and Cream'

Hydrangea 'Strawberries and Cream' is a stunning deciduous shrub admired for its beautiful flower heads featuring soft pink and creamy white tones...

From$36.95
azalea-blue-danube--1
Azalea 'Blue Danube'

Azalea 'Blue Danube' is a striking evergreen azalea admired for its masses of rich purple blue flowers and lush green foliage. This compact shrub...

From$18.95
eucalyptus-baby-blue-2
Eucalyptus Baby Blue (Silver Gum)

Eucalyptus 'Baby Blue' is a highly popular evergreen tree admired for its stunning silver blue foliage and strong ornamental appeal. The rounded...

From$408.85
Blueberry 'Powder Blue' blue berries with lush, green foliage.
Blueberry 'Powder Blue'

Blueberry 'Powder Blue' is a late season blueberry variety valued for its sweet flavour, firm berries, and extended harvest period. This reliable...

From$30.29
echeveria-dark-prince-1
Echeveria Dark Prince

Echeveria Dark Prince is a succulent grown for its impressive colourings. It grows as a short and stout rosette of thick, dark brown-black leaves...

From$14.95
Lavender 'Sensation Blue' shrub with purple flowers above dark green foliage.
Lavender 'Sensation Blue'

Lavender 'Sensation Blue' is a standout lavender variety admired for its deep blue purple blooms and aromatic grey green foliage. Flowering from...

From$25.53
Dichroa versicolor blue flowers amidst lush green foliage.
Dichroa versicolor (Blue Evergreen Hydrangea)

Dichroa versicolor is a striking evergreen shrub admired for its clusters of vibrant blue to violet flowers followed by glossy metallic blue berries...

OUT OF STOCK
Dichroa Blue Stars (Evergreen Hydrangea)

Did you find what you are looking for?

You might be interested in exploring related Latin Names - Dianella, Dichroa, and Hydrangea, or related Categories - Deciduous Climbers, Conifer Trees, and Flaxes.

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.

Illustration of plant leaves.
Chamaemelum nobile (Chamomile) and Arthropodium cirratum (Rengarenga Lily) may be the stars of the show, but unsung heroes like Fuchsia 'Pacquesa', Sedum rubrotinctum (Jelly Bean Plant), and Magnolia Cleopatra deserve a moment in the sun.
–The Plant Company

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