If you’ve ever come to water your garden and found that the soil is bone dry and hard like a brick, has pulled away from the sides of a raised bed or pot, and repels water better than your raincoat, then it’s highly likely that your soil has become hydrophobic. Hydrophobic soil, or soil that doesn’t want to mix with water (literally, the soil is afraid of water), is troublesome because it reduces the amount of water available for plants to take up through their roots....