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Lawn care experts warn against common mistake with expensive consequences: 'No …
Excessive mulch around trees and garden beds can be harmful. Here's how to avoid creating a mulch volcano.
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Avoid the 'Mulch Volcano': Expert Tips for Healthy Trees and Gardens
Mulching is a common practice in gardening, but improper application can inadvertently harm trees and plants. A recent video from lawn care expert Summit Lawns highlights the dangers of what is commonly referred to as a 'mulch volcano' – an excessive buildup of mulch around the base of trees. According to the expert, piling mulch too high against a tree trunk can lead to root suffocation and create an environment that traps excessive moisture. This trapped moisture, combined with the lack of air circulation, encourages rot and attracts pests, ultimately jeopardizing the tree's health and potentially leading to its demise. Instead of continuously adding new layers of mulch without removing old ones, Summit Lawns recommends a 'top-dressing' approach. Gardeners should aim for a maximum mulch depth of approximately three inches. Each year, only a light layer of new mulch should be added, just enough to refresh the color and maintain the desired depth. If existing mulch is significantly deteriorated or overly deep, it should be removed before applying new material. This method ensures that trees and plants receive the benefits of mulching – such as weed suppression and soil temperature regulation – without suffering from the adverse effects of improper application.
