The larch was found to be the most effective tree when it comes to absorbing noise with its bark. The conifer was the most effective out of 13 tree species in a laboratory-based sound absorption test.
Some types of perennials, including hosta, do not have sturdy stems, and quickly turn to mush after a few hard freezes. Hosta, daylilies and iris are best cut back in fall to an inch or so above ...