Named not for its height, but for an English garden, Nepeta racemosa 'Walker's Low' has gray-green foliage that makes a perfect backdrop for its bright blue flowers. This cultivar grows to 30 inches in height and up to 3 feet in diameter. Catmint tolerates bright, sunny, and dry conditions once the root system is established. The flowers attract butterflies and hummingbirds, and house cats find the essential oils in the leaves and stems to be irresistible. Deer and rabbits prefer other less-minty plants.