If there were a popularity contest for bananas, the Dwarf Cavendish would take the cake. This variety swept the hearts of commercial producers in the 1950s when the Gros Michel variety, the previous supermarket winner, was destroyed by disease. The Dwarf Cavendish produces medium-sized bananas. • Average mature height: 8-10 feet • Fertilizer: N/P/K (Nitrogen/Phosphorus/Potassium) in a 3/1/6 ratio • Light: Mostly sunny • Soil: Rich, well-drained • Zones: 8-11 Plant Size A baby plant, that is 3-8 inches tall, will arrive at your home in a 3-inch-deep pot. Then, raise your new baby to maturity under your caring, green thumb.