Bathtub Garden Soil Mix: Goat Manure, Gravel, and Good Dirt

Walter Reeves' mother grew vegetables in bathtubs using: gravel base, 12 inches of "good dirt," topped with several inches of goat manure from neighbors' barn, mixed in. She grew beans, broccoli, strawberries, greens, tomatoes, eggplant successfully. The manure provided nutrients and organic matter.

Drainage (gravel) and fertility (manure) were key.