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pittosporum ralphii hedge

If you're seeking a hardy, attractive, and low-maintenance option for privacy or windbreaks in your New Zealand garden, a Pittosporum ralphii hedge is an excellent choice. Known for its lush, evergreen foliage and upright, bushy habit, Pittosporum ralphii creates a beautiful backdrop to any landscape while offering year-round interest and practical shelter. With its resilience to wind and coastal conditions, this pittosporum species is well-loved by Kiwi gardeners looking for a reliable hedge that’s easy to trim and thrives in a wide range of environments.

Pittosporum ralphii (Ralphs Karo)

Ralphs Karo

Pittosporum ralphii is a hardy, evergreen native shrub or small tree ideal for hedging, screening, and native planting projects across New Zealand. Known for its narrow, grey-green leaves and upright form, it typically grows to 4–6 metres tall and 3–4 metres wide. The foliage has a subtle silver tone, which softens the appearance of dense planting and adds contrast to green-dominated gardens. In spring, small dark red to purple flowers appear, offering seasonal interest and attracting native insects.

Pittosporum ralphii olive-green foliage.
  • Suited to regions:
    All regions
  • Plant type:
    Trees
  • Height:
    6.00 m
  • Spread:
    5.00 m
  • Flowering time:
    Spring
  • Tolerances:
    Coastal, Extended dry periods, Hardy, Wet, Wind
  • Garden uses:
    Hedging, Ponds, Screening
  • Garden styles:
    Alpine, Backyard, City & Courtyard, Coastal, Formal, Frontyard, Modern, Native
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Pittosporum ralphii (Ralphs Karo)

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Why Choose a Pittosporum ralphii Hedge?

Pittosporum ralphii stands out with its striking green-grey leaves and reddish new growth, delivering texture and colour no matter the season. Its dense branching makes it ideal for screening, shelter belts, or simply to define garden spaces. Whether planted as a formal clipped hedge or left to grow naturally for a more relaxed look, Pittosporum ralphii adapts readily to your garden’s needs.

Beyond aesthetic value, a Pittosporum ralphii hedge is naturally tolerant to New Zealand’s fluctuating weather. Its salt spray resistance makes it a sought-after choice for coastal locations, and its moderate drought tolerance suits drier inland gardens. This resilience ensures that once established, your hedge will require minimal fuss.

Planting and Care for Your Pittosporum ralphii Hedge

For best results, plant your Pittosporum ralphii hedge in full sun or partial shade, using well-drained soil. Spacing plants 80 cm to 1 m apart encourages a solid, seamless hedge as they mature. Water well during the first season to promote strong root growth, then reduce supplemental watering as the plants establish.

Pruning is simple: trim lightly a couple of times a year to encourage bushiness and maintain your preferred height. Feed with a general garden fertiliser in early spring to promote healthy foliage, and keep mulch around the roots to conserve moisture and suppress weeds.

Complementary Pittosporum Varieties

If you love the look and resilience of Pittosporum ralphii, consider mixing in other Pittosporum species for variety and year-round interest. Popular options include Pittosporum eugenioides (Tarata) for its shiny lime-green leaves and lemon-scented flowers, Pittosporum tenuifolium for its slender, airy habit and dark stems, or Pittosporum 'Wrinkled Blue' for unique blue-grey foliage. For smaller spaces or feature planting, Pittosporum 'Limelight' (Kohuhu) and Pittosporum 'Midget' (Dwarf Pittosporum) are compact, reliable choices.

Explore More Solutions for Your Garden

For those seeking something different or to add diversity to your shelter belts and hedges, explore distinctive options like Cornus mas, Acacia Copper Tips, Schotia brachypetala (Weeping Boer-Bean), Betula pendula 'Youngii' (Weeping Birch), or even the vibrant Acer palmatum Ichigyoji (Ichigyoji). These species pair beautifully with a Pittosporum ralphii hedge, enhancing seasonal interest and biodiversity in your outdoor space.

Create Your Ideal Hedge

A Pittosporum ralphii hedge brings structure, privacy, and year-round colour to any Kiwi garden. Its easygoing nature, adaptability, and stunning appearance make it a trusted favourite for both home gardeners and landscapers. Discover the many benefits of this striking native and enjoy a garden that remains vibrant and inviting throughout the year.


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–The Plant Company

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