best blue hydrangea

Name: The Plant Company
Address: 284 Meeanee Road, Meeanee, Napier, 4112, New Zealand
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Searching for the best blue hydrangea in New Zealand gardens? You’re not alone. The stunning blue blooms of hydrangeas add a dreamy touch to any landscape, catching the eye with their vibrant colour and lush petals. Whether you want a statement shrub for your front yard, a border for shaded areas, or a classic cottage garden staple, blue hydrangeas are a fantastic choice. With so many varieties available, it can be hard to decide which one suits your garden best. This guide will help you discover top blue hydrangea varieties, how to keep your blooms their brightest blue, and tips for creating a thriving hydrangea haven.

Pimelea prostrata 'Blue Peter'

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Pimelea prostrata 'Blue Peter', commonly known as Pinatoro or the NZ Daphne plant, is a mat-forming, NZ native, ground cover plant. It has small, blue foliage which becomes adorned with fragrant, white flowers in spring and results in white berries. This evergreen typically grows to 10 cm tall and 50 cm wide. Pimelea prostrata 'Blue Peter' is commonly used as a groundcover, added to coastal plantings, included in rock gardens, planted around outdoor living areas, grown on a bank, or positioned so it can spill out over a path or over a wall.

Buy Pimelea prostrata 'Blue Peter'

From $23.39

Suited to regions: All regions

Plant type: Groundcover Plants

Height: 10 cm

Spread: 50 cm

Flowering time: Spring

Tolerances: Coastal, Hardy, Wind

Garden uses: Borders, Ground covering, Living areas, Paths & Steps, Pool areas

Garden styles: Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Mediterranean, Modern, Native, Rock

Podocarpus Matapouri Blue (Blue Tōtara)

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Podocarpus ‘Matapouri Blue’, also known as Blue Totara, is a stunning New Zealand native tree prized for its striking blue-green foliage and tidy growth habit. It makes an exceptional feature or screening plant that brings colour and texture to the garden all year round. Highly adaptable and low-maintenance, this variety performs beautifully in both coastal and inland gardens, adding structure and elegance to any landscape design.

Buy Podocarpus Matapouri Blue (Blue Tōtara)

From $30.29

Suited to regions: All regions

Plant type: Trees

Height: 10.00 m

Spread: 5.00 m

Tolerances: Coastal, Extended dry periods, Hardy, Wind

Garden uses: Hedging, Parks, Screening, Specimen

Garden styles: Alpine, Architectural, Backyard, City & Courtyard, Coastal, Formal, Frontyard, Japanese, Mediterranean, Modern, Native

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You might be interested in exploring related Latin Names - Blueberry, Cupressus, Eucalyptus, Hydrangea, Jacaranda, Juncus, Lagerstroemia, Lavender, Liriope, Orange, Perovskia, Phlebodium, Pimelea, Pittosporum, Podocarpus, Prostanthera Rosmarinus and Salvia, or related Categories - Blueberry Plants, Orange Trees, Conifer Trees, Grasses, Groundcover Plants, Indoor Plants, Perennials, Deciduous Shrubs, Evergreen Shrubs Deciduous Trees and Evergreen Trees.

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Top Blue Hydrangea Varieties for New Zealand Gardens

If your goal is to find the best blue hydrangea, start with proven performers. Some blue hydrangea varieties stand out for their reliable colour, robust growth, and gorgeous flower heads. Here are a few favourites:

Hydrangea Nightingale is prized for its intense blue lacecap flowers that hold their colour well in acidic soils. This compact shrub offers vibrant blooms late into the season and is perfect for smaller spaces or container planting.
Hydrangea Mariesii Perfecta boasts elegant blue mophead flowers that create a bold focal point in any shady garden. Mariesii Perfecta thrives in moist, rich soils and is ideal for classic cottage garden designs.
Hydrangea Blue Deckle produces delicate edge-blue petals in lovely clusters. Its dainty, lace-like flowers and mid-sized habit make it suitable for borders, woodland plantings, or patio pots.
Hydrangea Renate Steiniger is a standout for those wanting clear and vivid blue tones. Renate Steiniger is known for extra-large flower heads and a robust growth habit, lasting well into late summer.
For a unique twist, Dichroa Blue Stars (Evergreen Hydrangea) offers evergreen foliage with blue star-shaped flowers, giving you year-round interest and striking colour throughout the blooming season.

How to Keep Your Hydrangeas Blue

The secret to achieving and maintaining blue hydrangea blooms is soil pH. Hydrangea flowers turn blue most intensely in acidic soils (pH below 6), while alkaline soils push blooms toward pink or mauve. For the best blue hydrangea colour, add soil acidifiers like aluminium sulphate or use pine needles and peat moss as mulch. Regular soil testing helps you adjust nutrients and pH to keep your hydrangeas their brightest blue.

Also, choose sheltered positions out of harsh afternoon sun, and keep your hydrangeas well-watered, especially during dry spells. These shrubs enjoy moist, well-drained soil and thrive in areas protected from strong winds.

Planting and Care Tips for Blue Hydrangeas

Plant blue hydrangeas in autumn or spring when soil is workable and temperatures are milder. Space shrubs to allow airflow, water deeply at planting, and apply a thick mulch to retain moisture. Prune after flowering to remove faded blooms and encourage bushier growth next season.

If you’re searching for the best blue hydrangea, explore our selection and bring a burst of colour to your garden. Whether you prefer the classic lacecap of Hydrangea Nightingale, mophead beauty of Hydrangea Mariesii Perfecta, or the unique evergreen form of Dichroa Blue Stars (Evergreen Hydrangea), you’ll find a blue hydrangea to suit every garden style and space.

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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.

Buxus sempervirens 'Silver Beauty' (Silver Boxwood) and Duranta Geisha Girl are classic choices, but adventurous gardeners will enjoy Camellia 'Crimson King', Carex testacea, and Geum 'Can Can'.

–The Plant Company