The answer to 'why is my garden erosion' is that garden erosion is typically caused by a combination of factors, including heavy rain, sloping terrain, poor soil structure, and lack of vegetation. Symptoms can include gullies, exposed roots, and soil loss, which can damage plants and make the garden look unsightly.
To address garden erosion, homeowners can try a few different solutions. For minor erosion, adding mulch, planting ground cover plants, or building small retaining walls may help. For more severe erosion, you may need to regrade the soil, install erosion control matting, or plant deep-rooted plants to stabilize the soil. If the erosion is extensive or you're unsure of the best approach, it's generally best to consult a professional landscaper who can assess the situation and recommend the appropriate solution.