When should I use a soil conditioner?

Soil conditioner is best applied to a lawn prior to seeding or sodding and tilled into the existing soil.  In gardens, soil conditioner is best to be tilled in to the soil in fall after vegetables or flowers are done growing or prior to planting in the spring.  You may notice your soil has a high clay content and tends to compact making rain run off from the surface instead of moving into the soil. Soil conditioner will help loosen and aerate the soil.