The Salad Box from Hydrofarm is ideal for growing a small soil-free garden of salad greens and other plants indoors or outdoors with almost zero maintenance. It is a passive hydroponics system based on the research of academic horticulturist B.A. Kratky.
Using the Salad Box is clean and easy. It uses no electricity at all—no air pumps or water pumps needed! It grows greens and lettuce up to thirty percent faster than soil. Use it indoors with grow lights or outdoors in natural light.