Cut back yellowing foliage on hardy perennials such as daylilies, crocosmia and asters. It will make the garden look tidier and stop pests from using the leaves as shelter over winter.
For two years, this salvia has been an eye-catcher in our perennial garden, blooming from May through ... are held above the clean, dark green foliage, for a blooming height of about 20 inches.