Discoloration, thinning out, diseases, and excessive weeds are important signs that you need to replace your mulch. Pest issues and fungal growth also indicate it’s time for a refresh. Here’s a closer look at how you know when it’s high time to replace your mulch. Discoloration is a clear sign that it’s time to get new mulch. Whether you have dyed mulch or not, over time, it will start to…