Nepeta 'Six Hills Giant' is an aromatic hardy perennial that will attracts bees and butterflies to your borders.
Also known as Catmint, this variety has beautiful aromatic silver foliage which provides interest throughout the year, along with a profusion of upright, airy flower spikes during the summer months. When in flower, Nepeta 'Six Hills Giant' produces a hazy cloud of purple flowers which are a magnet for pollinators, especially butterflies. The sweet mint-scented foliage gives off a gorgeous aroma which fills this air on sunny days. This resilient and drought-tolerant plant is quick to establish and puts on a great show even in its first year. Catmint is a fantastic, low-maintenance option for a long season of interest, barely requiring watering and quick to clip back in autumn when the flowers have finished. Clump-forming and gradually spreading to form a bigger and more impressive clump each year, it's ideal for beds and borders where it will provide an effortless display for many years to come.
An easy-to-grow perennial for sunny border, with bee and butterfly-friendly flowers.
Plant Type: Herbaceous
Hardiness: H7 Very Hardy. Minimum temperature < -20
Plant Height & Spread (at maturity): H 1m x W 1m (Mature age: 5 years)
Foliage Colour: Silver
Flower Colour: Purple
Fragrant Flower: Yes
Aromatic Foliage: Yes
RHS Award of Garden Merit: No
RHS Perfect for Pollinators: Yes
Foliage Type: Deciduous
Soil Type: Chalky, Clay, Loam, Sandy, Acid, Alkaline
Soil Drainage: Well Drained
Light Exposure: Full Sun, Part Shade
Planting Style: Gravel & Drought Resistant Garden, Wildlife Garden, Cottage Garden, Informal Garden, Flower Beds & Borders, Coastal Garden.
Season of Interest: Summer
Flowering (from - to): June-August
Nepeta 'Six Hills Giant' is easy to grow in a sunny or partially shaded spot. It's resilient and drought tolerant, which makes it useful for exposed, dry or coastal gardens, but grows just as well in a more enclosed sunny setting.
This variety isn't fussy about soil type, although it thrives in a well-drained soil which doesn't become waterlogged in winter. Best suited to growing in beds and borders, in the middle of a space of around 1m wide to allow the bushy stems to spread out in summer.
Water well when first planted and continue to water regularly until established. Once established, this drought-tolerant variety will barely require watering, unless faced with extremely dry conditions over a long time.
Catmint thrives without additional feeding, although you can apply an all-purpose liquid feed occasionally throughout the first growing season to help it to establish.
Trim back the foliage and flowers at the ends of the summer season when the flowers have faded, or whenever necessary. You can cut back Catmint very hard, leaving just foliage at the base in autumn.