When to remove winter marsh hay mulch on perennial beds in metro area

Asked April 19, 2019, 2:43 PM EDT

I live in Victoria, about three miles west of the Minnesota Landscape Arboretum. Each spring I wonder when to remove the wet, matted marsh hay mulch that I applied the previous late fall to my perennial garden. The garden is predominately in shade or partial shade and consists of plantings including hostas, astilbe, tiarella, ferns, sedge, epimedium, goatsbeard, brunnera and toadlily. Should I begin by lifting the mulch a bit and allowing some air pockets, or would you recommend removing all the mulch when evening temps stay milder? Could you please advise me? Thank you!

Carver County Minnesota

1 Response

You want to leave your mulch on your beds until the chance of a hard frost has passed. The night time temps for the next week aren't supposed to drop below 40, so you will be ok removing the mulch.