What Are the Components of Healthy Topsoil?
The secret to any thriving garden and lawn is their being rooted in good, healthy topsoil. But, what exactly is healthy topsoil? And what sets it apart from any old dirt?
Well, like dirt of all kinds, topsoil is essentially a mixture of sand, silt, and clay. Sand particles are the largest, while clay particles are the smallest. Silt is somewhere in the middle. The best soil has more silt than sand and clay. Sand tends to allow too much water to drain through, while clay often retains too much water. Silt keeps the moisture balance just right. Sand or clay can be added to soil in...