Nepeta faassenii ‘Six Hills Giant’ – A Vigorous, Long-Blooming Catmint with Lavender Flowers
Nepeta faassenii ‘Six Hills Giant’ is a robust and versatile herbaceous perennial, celebrated for its long-lasting, aromatic lavender-blue flower spikes and grey-green aromatic foliage. Known for its vigorous growth and garden reliability, this variety is ideal for borders, rockeries, pollinator gardens, and low-maintenance landscaping.
With a flowering season that extends from late spring through summer, ‘Six Hills Giant’ provides abundant colour and attracts bees, butterflies, and other pollinators, making it both a beautiful and wildlife-friendly choice for any garden.
Why Grow Nepeta faassenii ‘Six Hills Giant’?
Abundant, Long-Lasting Flowers
Produces tall, fragrant spikes of lavender-blue flowers over a long period, providing vibrant colour throughout the growing season.
Vigorous & Hardy
‘Six Hills Giant’ is exceptionally hardy and resilient, thriving in a wide range of garden conditions. It tolerates poor soils, drought, and sunny positions, making it ideal for low-maintenance planting.
Aromatic Foliage
The soft, grey-green leaves are aromatic when touched, adding both sensory interest and texture to borders and garden beds.
Pollinator-Friendly
The nectar-rich flowers attract bees, butterflies, and other beneficial insects, supporting wildlife and promoting a healthy garden ecosystem.
Height and Spread
-
Height: 60–90cm
-
Spread: 90–120cm
Its upright yet bushy growth habit makes it suitable for borders, mass plantings, or container displays.
Where to Site Your Nepeta ‘Six Hills Giant’
-
Borders & Beds: Creates colourful, low-maintenance structure
-
Pollinator Gardens: Supports bees and butterflies
-
Rockeries & Gravel Gardens: Performs well in sunny, well-drained areas
-
Containers & Patio Gardens: Adds fragrance, texture, and summer colour
How to Grow and Care for Nepeta faassenii ‘Six Hills Giant’
Soil
Prefers well-drained soil and tolerates poor, sandy, or chalky soils. Avoid waterlogged conditions.
Light
Thrives in full sun for best flower production and aromatic foliage.
Watering
Water moderately, especially during establishment. Once mature, it is drought tolerant and very low-maintenance.
Maintenance
Pruning
Trim back lightly after flowering to maintain shape and encourage a second flush of blooms. Cut hard in late winter or early spring to rejuvenate older plants.
Feeding
Generally requires no fertiliser; a light application in spring can boost growth.
Pest & Disease Resistance
‘Six Hills Giant’ is largely pest- and disease-resistant, making it a reliable and carefree perennial.
Perfect Plant Combinations
Nepeta ‘Six Hills Giant’ pairs beautifully with roses, lavender, salvia, and ornamental grasses. Its soft foliage and long flowering period complement stronger architectural plants and help create textured, relaxed borders.
Conclusion
Nepeta faassenii ‘Six Hills Giant’ is a hardy, vigorous perennial that offers long-lasting lavender-blue flowers, aromatic foliage, and exceptional garden versatility. Ideal for borders, pollinator-friendly gardens, or containers, it provides months of colour and low-maintenance charm.
Does the height include the pot?
No, we measure from the top of the pot to the tip of the plant except for some of the instant planted screens, in this case it will be stated in the description
How long does delivery take?
Most orders are delivered in just a few days, Smaller items are often sent with Parcelforce on a next day service, Larger items should allow up to 10 days due to the size of the items they often have to be sent on our own transport.
Where will you leave my plants?
We will leave your order at the front of your property, Parcelforce may
leave your items in a safe place if you let us know, Pallet couriers
will require a flat hard surface to deliver to, no gravel or soil, a
driveway or parking spot would be best. Most importantly Deliveries by
pallet courier will require access for a large truck (bin lorry sized)
to get near the delivery point. Deliveries sent on our own transport may come in a small van or larger truck.
Value pick
Value pick
Value pick
Upgrade
Upgrade
Upgrade