An easy-care perennial, daylilies (Hemerocallis spp.) produce
flowers all summer in Sunset's Climate Zones 1 to 24 and rarely
require much more than watering after you plant them. Grass can
invade the beds because the soil isn't constantly being worked
and tended to, quickly establishing and over running the daylily
beds. Eradicating the grass completely requires effort, but
doing so correctly and taking proper precautions afterward can
prevent it from infesting the daylily bed a second time. Dig up
the daylily bulbs in fall after the foliage has yellowed and
died back naturally. Store the bulbs in slightly moistened peat
moss in a cool, 45 degree Fahrenheit location. Spray the bed
with a non-selective glyphosate weed killer. The glyphosate
kills all plants in the bed but is short acting, so it becomes
inactive after two weeks. Dig up the bed, removing any grass
roots and rhizomes that remain. If you prefer to avoid
herbicides, dig up the roots without treating the grass with
glyphosate. Some grass may surviv