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kowhai tree height

Curious about kowhai tree height? You’re not alone—kowhai trees (Sophora species) are among New Zealand’s most beloved natives, famed for their vibrant yellow flowers and graceful, airy foliage. If you’re considering planting a kowhai or simply researching their growth habits, knowing their mature height is crucial for planning your garden. Not only does kowhai tree height vary between species, but understanding these variations helps you choose the right type for your landscape, whether you want a compact specimen, a sprawling shade tree, or a colourful focal point.

Sophora microphylla specimen tree covered in yellow flowers.

Sophora microphylla (Small Leaved Kōwhai)

Sophora microphylla, commonly known as Weeping Kowhai, is a treasured New Zealand native tree admired for its graceful, drooping branches and masses of golden yellow flowers in spring. This semi-evergreen species is highly attractive to native birds such as tui and bellbirds, which feed on its nectar.

Buy Sophora microphylla (Small Leaved Kōwhai)

From $28.91

Suited to regions: All regions

Plant type: Trees

Height: 10.00 m

Spread: 6.00 m

Flowering time: Spring

Tolerances: Hardy, Wet, Wind

Garden uses: Parks, Ponds, Screening, Specimen

Garden styles: Alpine, Backyard, Frontyard, Japanese, Native

Sophora tetraptera (Large-leaved Kowhai) yellow flowers.

Sophora tetraptera (Large Leaved Kōwhai)

Sophora tetraptera, commonly known as the Large Leaved Kowhai, is a striking New Zealand native tree admired for its bold foliage and spectacular yellow flowers. Flowering in spring, it produces nectar rich blooms that attract tui, bellbirds, and other native wildlife.

Buy Sophora tetraptera (Large Leaved Kōwhai)

From $24.15

Suited to regions: Subtropical, Temperate

Plant type: Trees

Height: 10.00 m

Spread: 3.00 m

Flowering time: Spring

Tolerances: Coastal, Hardy

Garden uses: Living areas, Parks, Ponds, Screening, Specimen

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

Kowhai Tree Height by Species

Kowhai trees can reach a range of heights depending on the species, growing conditions, and age. Generally, mature kowhai tree height ranges from 4 to 12 metres, although some may exceed this in ideal conditions. Here’s a brief overview of the main Sophora species found in New Zealand nurseries, including their typical heights:

Sophora tetraptera (Large Leaved Kōwhai)

Often selected for its bold leaves and vigorous growth, Sophora tetraptera (Large Leaved Kōwhai) can reach heights of 8–12 metres at full maturity. This makes it a striking choice for larger gardens or as a shade tree, especially in areas where space allows. With its robust structure and lush foliage, this species offers an impressive presence and plenty of nectar during flowering season.

Sophora microphylla (Small Leaved Kōwhai)

If you’re after a more compact tree, Sophora microphylla (Small Leaved Kōwhai) generally grows 6–10 metres tall, though it may remain smaller in exposed or dry locations. Its fine, delicate leaves and lovely yellow blooms draw tuis and other native birds, adding wildlife interest to gardens of varying sizes.

Sophora godleyi (Godleys Kowhai)

Known for its upright, columnar habit, Sophora godleyi (Godleys Kowhai) reaches heights of 6–10 metres. It’s favoured for its reliable flowering and tidy shape, making it a great choice for shelter belts or as an avenue tree where height matters but spreading width is less desirable.

Sophora longicarinata (Limestone Kowhai)

For rocky or calcareous soils, Sophora longicarinata (Limestone Kowhai) offers an appealing solution. This species grows 4–6 metres tall, often maintaining a more compact form even when mature. It’s ideal for smaller gardens, urban spaces, and those wanting a manageable yet distinctive native tree.

Sophora chathamica

A coastal treasure, Sophora chathamica commonly reaches up to 10 metres in ideal conditions. Its lush foliage and resilience in salt-laden winds make it a popular choice for gardens near the sea or exposed sites, all while delivering that iconic kowhai colour.

Choosing the Right Kowhai for Your Garden

When considering kowhai tree height, factor in your available space, desired growing conditions, and landscape goals. For tall specimens, Large Leaved Kōwhai or Chatham Island kowhai offer showy height and shade, while Limestone Kowhai suits tighter spots. Each species brings a unique combination of beauty, wildlife attraction, and adaptability.

Thinking of planting a kowhai? Visit our guides on Sophora tetraptera (Large Leaved Kōwhai), Sophora microphylla (Small Leaved Kōwhai), and other unique kowhai species to find the perfect fit for your site. Let your garden soar with New Zealand’s golden native!

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.

kowhai tree height

Sophora microphylla (Small Leaved Kōwhai)

Sophora tetraptera (Large Leaved Kōwhai)

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