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giant catmint

Giant catmint is a standout choice for New Zealand gardeners who want reliable, vibrant colour and an easy-care perennial that thrives in a range of garden conditions. Known for its tall, arching stems and abundant masses of lavender-blue flowers, giant catmint creates a soft, billowing effect in borders, cottage gardens, and landscape plantings. It is loved by pollinators, especially bees and butterflies, and makes an ideal companion plant for roses thanks to its ability to deter aphids and suppress weeds. Whether you’re designing a new perennial bed or revamping an established area, incorporating giant catmint brings both beauty and resilience to your garden.

Ajuga 'Catlins Giant' plants with green foliage and blue flowers growing in a garden bed.

Ajuga 'Catlins Giant'

5 from 1 customers

Ajuga 'Catlins Giant' (Bugleweed Plant) is a vigorous evergreen groundcover valued for its large glossy dark green leaves and striking blue flower spikes in spring. This robust variety performs exceptionally well in New Zealand gardens and is ideal for fast ground coverage, borders, and underplanting. Its bold foliage and spreading habit make it an excellent choice for suppressing weeds while adding texture and seasonal colour to the landscape.

Suited to regions: All regions
Plant type: Groundcover Plants
Height: 25 cm
Spread: 80 cm
Flowering time: Spring
Tolerances: Coastal, Hardy, Shade
Garden uses: Borders, Containers, Ground covering, Living areas, Parks, Paths & Steps, Patios, Pool areas, Specimen
Garden styles: Backyard, City & Courtyard, Coastal, Frontyard, Mediterranean, Modern
Alcantarea imperialis (Giant Bromeliad) plant with a large red flower.

Alcantarea imperialis

5 from 1 customers

Alcantarea imperialis, commonly known as the Giant Bromeliad, is a striking architectural plant prized for its massive rosette of broad, silver green leaves. Native to Brazil, it thrives in New Zealand’s warmer regions and is well suited to both garden landscapes and large containers. This bromeliad can reach over a metre in diameter and produces tall, dramatic flower spikes. With its bold form and exotic character, Giant Bromeliad makes a stunning focal point in any setting.

Suited to regions: Subtropical, Temperate
Plant type: Bromeliads
Height: 1.00 m
Spread: 1.00 m
Flowering time: Summer
Garden uses: Borders, Containers, Living areas, Paths & Steps, Pool areas
Garden styles: Architectural, Backyard, City & Courtyard, Frontyard, Japanese, Modern, Tropical
A Cornus controversa (Giant Dogwood) specimen tree.
Cornus controversa

Cornus controversa, commonly known as the Giant Dogwood, is a medium-sized, deciduous tree that features lush foliage that emerges mid-green in...

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A Protea cynaroides (King Protea) flower.
Protea cynaroides (King Protea)

Protea cynaroides, commonly known as the King Protea or Giant Protea, features flowers with deep crimson bracts and a cream-coloured centre from...

From$44.09
Doryanthes palmeri plant in a garden with a large red flower.
Doryanthes palmeri

Doryanthes palmeri (Giant Spear Lily) is a dramatic architectural plant admired for its massive sword like foliage and spectacular towering flower...

From$141.02
Juncus pallidus (Giant Rush) plants in a landscaped garden.
Juncus pallidus (Giant Rush)

Juncus pallidus, commonly known as the Giant Rush, features erect, dark green leaves and grows as a tidy clump, reaching approximately 75 cm in...

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Corokia 'Geentys Giant' green leaves.
Corokia 'Geenty's Giant'

Corokia 'Geenty's Giant' is a hardy, NZ native shrub that bears green-yellow foliage held densely on slender, upright branches. Masses of small...

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Cyperus ustulatus growing in water.
Cyperus ustulatus (Giant Umbrella Sedge)

Cyperus ustulatus, commonly known as the Giant Umbrella Sedge, is a large and robust NZ native grass. It grows as a clump and produces dark green...

From$17.25
A large planting of Stipa gigantea (Golden Oat Grass) as a feature garden.
Stipa gigantea

Stipa gigantea, commonly known as the Golden Oat Grass, is a large, ornamental grass. It grows as a clump and produces narrow, dark green leaves. The...

From$15.11
strelitzia-nicolai-
Strelitzia nicolai (White Bird Of Paradise Plant)

Strelitzia nicolai (Giant White Bird Of Paradise) is a bold, architectural plant known for its large banana like leaves and striking white and blue...

From$44.09
Thuja plicata 'Green Giant' trees standing 5 m tall as a lush, green screen.
Thuja 'Green Giant'

Thuja 'Green Giant' is a smaller variety of Cedar and bears sprays of glossy, dark green foliage held on slender stems. The result is a tree with a...

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Sequoiadendron giganteum

Sequoiadendron giganteum (Giant Redwood) is one of the world’s most impressive and majestic conifer trees, valued for its towering growth habit, rich...

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Nepeta 'Six Hills Giant' green foliage and blue flowers.
Nepeta 'Six Hills Giant' (Catmint)

Nepeta 'Six Hills Giant' is a vigorous perennial prized for its aromatic foliage and abundant lavender blue flowers that bloom from late spring...

OUT OF STOCK
Nepeta 'Walkers Low' blue flowers.
Nepeta 'Walkers Low' (Catmint)

Nepeta 'Walker's Low' is an award winning Catmint admired for its long flowering season and aromatic grey green foliage. From late spring through...

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Nepeta 'Blue Wonder' plant with blue flowers.
Nepeta 'Blue Wonder' (Catmint)

Nepeta 'Walker's Low' is an award winning Catmint admired for its long flowering season and aromatic grey green foliage. From late spring through...

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Nepeta mussinii with blue flowers and lush foliage.
Nepeta mussinii (Catmint)

Nepeta mussinii, also known as Catmint, is a hardy perennial loved for its aromatic grey green foliage and masses of violet blue flowers. Flowering...

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Nepeta faassenii plants with blue flowers in a border.
Nepeta faassenii

Nepeta faassenii, commonly known as Catmint, is a hardy perennial valued for its aromatic grey green foliage and long lasting spikes of lavender blue...

OUT OF STOCK
Beautiful orange and red flowers on the Rose 'Tequila Sunrise'
Rose 'Tequila Sunrise' Standard

‘Tequila Sunrise’ Standard Rose is a striking stem trained rose that showcases vivid yellow blooms edged with bold red, creating a dramatic sunrise...

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Rose 'Double Delight' pink and cream-coloured flowers.
Rose 'Double Delight'

Rose 'Double Delight' is one of the most loved bi coloured roses, admired for creamy white blooms brushed with vibrant red edging and a powerful...

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Rose 'Desiree' pink flowers.
Rose 'Desiree'

Rose 'Desiree' is a beautifully refined rose known for soft pastel blooms, gentle fragrance and repeat flowering through the warmer months in New...

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Elegant orange flower on Rose 'Tequila Sunrise'
Rose 'Tequila Sunrise'

Rose 'Tequila Sunrise' is a dazzling floribunda rose admired for its brilliant yellow petals edged boldly in red, creating a fiery sunrise effect...

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A light apricot-coloured Rose 'Emperor' flower.
Rose 'Emperor'

Rose 'Emperor' is a commanding hybrid tea rose admired for its bold deep red blooms and stately upright growth. Large classic flowers are produced on...

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Salvia 'Blue Hills' plants with blue flowers in a cottage garden.
Salvia 'Blue Hill'

Salvia 'Blue Hill' is a compact perennial celebrated for its beautiful sky blue flower spikes that appear repeatedly from early summer into autumn in...

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A beautiful pink flower on Rosa 'Pink Damask'
Rose 'Pink Damask'

Rose ‘Pink Damask’ is a classic old world rose admired for its exquisite fragrance and beautifully formed soft pink blooms. This timeless variety...

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Aeonium canariense plant with green leaves.
Aeonium canariense (Giant Velvet Rose)

Aeonium canariense, also known as the Canary Islands Aeonium, is a stunning succulent prized for its rosette-shaped foliage. The leaves are a fresh...

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Echeveria colorata plant with light blue foliage.
Echeveria colorata

Echeveria colorata (Mexican Giant Echeveria) is a stunning succulent admired for its large powdery blue grey rosettes and elegant architectural form...

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Tall and large Phyllostachys edulis (Moso Bamboo) growing alongside a path.
Phyllostachys edulis

Phyllostachys edulis, commonly known as Moso Bamboo, is a giant timber bamboo admired for its rapid growth and striking upright canes. In New...

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Myosotidium hortensia (Chatham Island Forget Me Not) plant with lush green foliage and stunning blue flowers.
Myosotidium hortensia (Chatham Island Forget-Me-Not)

Myosotidium hortensia, commonly known as the Chatham Island Forget-Me-Not, is a distinctive and recognisable NZ native. The plants have large...

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Adiantum formosum fern in a shade garden and featuring slender, green fronds.
Adiantum formosum (Giant Maidenhair Fern)

Adiantum formosum (Giant Maidenhair Fern) is a striking fern admired for its tall, elegant fronds and delicate leaf structure held on fine black...

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Ligularia tussilaginea plant with lush, dark green leaves.
Ligularia tussilaginea (Elephant Ears)

Ligularia tussilaginea is a lush foliage perennial valued for its large round glossy leaves that add bold texture to shaded New Zealand gardens...

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Eleocharis sphacelata (Tall Spike Rush) plants growing in a pond.
Eleocharis sphacelata (Tall Spike Rush)

Eleocharis sphacelata, commonly known as Tall Spike Rush, is a rush that grows in or near still fresh water in dams, swamps, lakes, creeks and wet...

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Anthurium Giant Chocolate (Giant Anthurium)

Anthurium Giant Chocolate is a very popular indoor plant due to its lovely foliage and flowers. It features glossy, dark green leaves which serve as...

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Ajuga 'Catlins Giant'

Did you find what you are looking for?

You might be interested in exploring related Latin Names - Ajuga, Alcantarea, and Cornus, or related Categories - Bromeliads, Grasses, and Groundcover Plants.

Search giant catmint

What is Giant Catmint?

Giant catmint, commonly referring to Nepeta 'Six Hills Giant', is one of the largest and most robust varieties of catmint available. This herbaceous perennial grows to an impressive height of 90cm and can spread just as wide, making it a dramatic focal point or an effective, fragrant edging along paths and garden borders. With aromatic, grey-green foliage that is lightly felted and a profusion of blue-lavender flower spikes from late spring into early autumn, Nepeta 'Six Hills Giant' has become a classic choice for gardens across New Zealand. If you’re curious about the specifics and nursery-grown plants available, you’ll find more details on Nepeta 'Six Hills Giant' (Catmint).

How to Grow Giant Catmint

Giant catmint is well-known for its adaptability and low maintenance needs. Plant it in a spot with full sun to light shade and free-draining soil for the healthiest growth and most prolific flowering. It’s drought-tolerant once established and can handle the occasional dry spell, making it well-suited to New Zealand’s changing climates. Trim back flower spikes after the first flush of blooms in early summer if you want to encourage a second flowering. Catmint also copes well with coastal conditions, clay soils, and is rarely troubled by pests or diseases. This makes it a great option for both beginner and experienced gardeners seeking low-fuss, high-impact plants.

Plant Combinations and Alternative Catmints

Giant catmint pairs beautifully with roses, peonies, lavenders, and ornamental grasses to create a naturalistic planting style that’s both attractive and easy to maintain. Its generous size makes it perfect for filling larger gaps and defining spaces in the garden. For smaller gardens or containers where space is tight, you might consider the more compact Nepeta 'Walkers Low' (Catmint), which offers similar flower power in a tidier form. Other variations like Nepeta 'Blue Wonder' (Catmint), Nepeta mussinii (Catmint), and Nepeta faassenii offer subtle differences in flower colour, form, and plant size, so there’s a Nepeta for every space and garden style.

Why Choose Giant Catmint?

Giant catmint offers unrivalled versatility, extended flowering, and a proven track record in Kiwi gardens. Its appeal extends to both people and pollinators, making it a sustainable and rewarding choice for any landscape. Shop the outstanding Nepeta 'Six Hills Giant' (Catmint) and other unique catmints at our nursery to transform your garden with colour, fragrance, and long-lasting beauty.


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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.

–The Plant Company

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