'Walker’s Low' catmint
Photo courtesy Walters Gardens
‘Walker’s Low’ (Nepeta) catmint blooms all summer. Although a member of the square-stem mint family, catmint is a clump grower. It grows about 3 feet tall and wide. Once established, this plant is very drought tolerant. It also attracts bees, butterflies and other pollinating insects.
Plant catmint in full sun in well drained, but average soil. Silvery-green foliage and dark blue-lavender spikes develop in spring. After the first flush of flowers in spring, cut catmint back by about two-thirds. It will rebloom and continue flowering until frost. In fall, the foliage will turn yellow.
Apply about 1 inch of compost in early spring when the plant shows new growth, and again in fall, when catmint is cut back to the ground. Catmint can be divided in spring or fall.
Catmint’s soft, mounded shape makes it a good companion for roses (Rosa), peonies (Paeonia), ‘Moonbeam’ coreopsis (Coreopsis verticillata) and ‘Moonshine’ yarrow (Achillea), among other plants. The leaves are quite aromatic and can be used as an herb, mixing well with sages and thymes.