Nepeta 'Six Hills Giant'
- Position: full sun
- Soil: moist, well-drained soil
- Rate of growth: fast-growing
- Flowering period: June to July
- Hardiness: fully hardy
A vigorous catmint with small, tubular, lavender-blue flowers held in clusters of upright stems from June to July and attractive, aromatic, light grey-green foliage. This tall perennial will form a dense mound that looks wonderful in the middle of a sunny border alongside other blue or silver-leaved plants. Fresh or dried, the leaves make a refreshing and therapeutic tea which is high in vitamin C and has traditionally been used to treat such conditions as nervousness, insomnia, hyperactivity, colds and fevers. The flowers are highly attractive to bees, and of course, the foliage to cats, who will go mad for it. To prevent them from completely flattening it, insert several twiggy sticks into the centre of the plant.
- Garden care: Cut back after flowering has finished to keep the plant compact. Lift and divide large clumps in spring, replanting divided specimens with lots of well-rotted organic matter. If powdery mildew becomes a problem prune out the affected areas.
“The everlasting summer sea of tiny blue flowers adored by bees despite being sterile - it can be cut back totally in late July and do it all again by September”
Val Bourne - Garden Writer