1-Hawaiian Sugarcane Root Stock (Sugarcane Ratoon). Save time and take out the guess work of starting Sugarcane. These Sugarcane Ratoons have roots and are ready to plant. Can be grown as an unusal houseplant when put in a bright sunny location and watered at least 3 times a week. No sunny location inside? Potted cane can be grown with the assistance of a 40-watt grow light. When planted outdoors it can reach a height from 4 to 12 feet and may take up to 18 months for a stalk to fully mature. When grown in tropical to sub-tropical climate they will multiply quickly. The number of canes will approximately double each preceding growing season as well as becoming thicker each year. Regularly remove dead leaves and weeds from the soil or the growth of the cane stalk can be stunted. Mature Sugarcane are harvested by cutting level with the soil. This allows the original roots to regrow at least 2 - 3 more times before new ratoons are required. After harvesting be sure to continue the same watering & care as when the plant was actively growing above ground level.