An elusive summer perennial named hyssop
Jul 29, 2014 6:11 AM - One of the things a gardener misses about the spring is the vibrant color of young leaves. The lime greens of certain hostas, deutzias and Japanese maples add accents of vitality so emblematic of April, a month that now feels distant in the sullen lushness of summer. In northern gardens, these colors remain as strong echoes; in round-the-clock heat they are much fainter cries. A few, sited with just enough light or shade, remain strong. Now settled from their spring planting, the five hyssops are robust, upright and, at 4 feet and growing, twice the height they were six weeks ago.