Smart Pot 100 Gallon BlackSmart Pot 100 Gallon Black The 100 gallon Smart Pot container is a soft nursery pot that allows more air to reach the growing medium and roots, improving drainage and keeping the root system from overheating on hot days. Plant roots also benefit from their natural tendency to grow into soft surfaces like the Smart Pot material, becoming thick and healthy instead of circling the inside of the pot and becoming root bound. Measures 38 inches in diameter