The answer to 'my mulching looks bad' is that there are several common causes, including using the wrong type or amount of mulch, not maintaining it properly, or applying it incorrectly. Symptoms can include an uneven, patchy, or discolored appearance, as well as weeds or pests thriving in the mulch.
To fix mulching issues, first evaluate the type and depth of mulch you're using. Organic mulches like wood chips or shredded bark should be 2-4 inches deep. Inorganic mulches like rocks or rubber should be 1-2 inches deep. Make sure to spread the mulch evenly and replenish it as needed, typically 1-2 times per year. Proper maintenance, like removing weeds and refreshing the mulch, is also key to keeping it looking its best.