I live in the Denver area and have some areas of the yard that I'm replacing with shredded tree mulch. We have a tree company that shreds trees and is nearby, and once in awhile we can get them to drop off a truck load of mulch.
What I'm wondering is: Even though grass wont grow up from under the mulch ( it's 4" or so deep ) will bulbs come up from under that if I plant them under it?
Like tulips?