Nepeta, commonly known as catmint, is quite easy to grow with spikes of lavender-blue flowers from June to September. This perennial has an informal, bushy growth habit and aromatic, grey-green foliage. It needs full sun and well-drained soil.
Nepeta is also great for attracting wildlife into the garden. Bees, butterflies and moths love it.
Nepeta ‘Six Hill Giant’
With a height of 90cm Nepeta ‘Six Hill Giant’ will add height to a herbaceous border. This vigorous, bushy perennial bears pale blue, tubular flowers on tall spikes in mid-summer.
Nepeta racemosa ‘Walker’s Low’ is similar to ‘Six Hill Giant’ but with a height and spread of 70cm x 50cm.
Nepeta x faassenii
Nepeta x faassenii has lovely lavender-blue flowers and sage-green leaves. Grows to about 45cm tall. So it doesn’t take up too much space.
Nepeta ‘Pink Cat’
Pink-flowering Nepeta ‘Pink Cat’ and blue-flowering Nepeta ‘Kit Cat’ are both excellent, compact, edging plants for paths. They are also great ground cover plants.
When should you prune Nepeta (Catmint). Cut back the old foliage to the ground in spring to make room for new growth.
Cut back by half after flowering in July to encourage a second flush of flowers and to keep the plant compact.