How to get my lily of the valley to spread and get thicker
I have had lily of the valley planted for several years in a partially shaded area, however it is still very sparse and thin. The weeds take over that area and I have to pull them out. What can I do to make it grow? Can I mow the weeds without hurting the lily? Get it to grow?
Certified GKH Gardening Expert
Perhaps more water would help. They prefer a moist soil. However, you are in hardiness zone 6 and the article below says lily of the valley may struggle in zones 6 and 7.