Many gardeners struggle with plant health issues that appear insect-related, like mealybugs or wilting foliage, but the real culprit is often hidden beneath the surface—hydrophobic soil. When soil becomes water-repellent, it prevents moisture and fertiliser from reaching plant roots, leaving them vulnerable to stress and pest infestations. Even the most diligent watering routine may not be enough. Soil wetters and re-wetting agents are essential tools to restore soil hydration, improve plant health, and prevent nutrient loss. In this guide, we explore how hydrophobic soil forms, the surprising role of ants in this problem, and the best solutions to keep your garden thriving.