How soon after planting can I add mulch to my asparagus? I planted about 4 weeks ago. I added mulch yesterday. There was one small asparagus shoot coming up but all others were not poking through yet. I added mulch b/c the grass was starting to sprout around them. I read that asparagus benefits heavily from mulching but I hope I didn't add it too soon. Think the mulch will prevent it from coming up? I added a good 4 inches.
Also, I have two rows of asparagus so I decided to experiment... one row I added pine bark mulch, the other row I added hardwood ground mulch.