SYN. Nepeta x faassenii
Related to catnip, but much showier, catmints (Nepeta) are easy to grow perennials that not only have flowers in shades of purple-blue, pink and white, but gray-green foliage that remains attractive throughout the growing season as well. The most familiar catmints are those with purple-blue flowers that bloom heavily in early summer. These come in a range of heights, from a foot tall up to as much as 1.0m tall, making them useful in many garden settings, including flower borders, rock gardens, and edging. A classic combination is to grow them with hybrid tea roses to cover the "bare knees" of the rose bushes and complement the many shades of rose blossoms with their soft blue flowers.