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.