Why Can't You Just Use Yard Soil?
Gardening magazines say it, plant nurseries say it, landscapers say it, and seed catalogue companies say it: Add sterile topsoil when planting anything, even if the plant is going in a small container on the windowsill. For many new gardeners and those wanting some new landscaping in their yards, the idea of lugging in huge bags of soil when they've got perfectly good dirt just all over their yard already sounds pointless.