When applying my Preen, do I need to put it on top of the mulch, or underneath the mulch?
That’s a great question! And the answer depends on the situation! -If its bare soil and you’re mulching for the first time, apply Preen to the soil first, then mulch. If your budget allows, a second application on top of the mulch will be helpful for weed seeds blowing into the mulch. -If you’re simply top dressing or freshening existing mulch, apply Preen before you add the new mulch. -And if you’re already mulched and ready to go, simply apply Preen to the top of the mulch. And in all cases, make sure that the Preen gets watered in! As a reminder for those of you interested in using organic or natural products in your gardens, both Preen and Espoma now have their all natural pre emergent made from Corn Gluten. It needs to be reapplied more often, but it is a natural alternative for you.