The Hawaiian ti is an evergreen shrub that can grow outdoors to 10 feet tall with leaves up to 30 inches long and 6 inches wide. However, indoor container versions are much smaller than the ti plants grown outdoors in the garden. Leaves are a reddish purple, green or a combination of white, yellow, red and purple. When the Hawaiian ti matures, it produces reddish or yellowish flowers measuring 1/2 inch across.
Place the Hawaiian ti plants in a sunny location with partial shade. The ideal location indoors is a bright window with indirect sunlight. Plants that are grown in a location with low light will not reach its potential for colorful foliage and flowers.
Water the plant before the soil dries out. Hawaiian ti plants need moist soil with at least 1 inch of water each week. Use tap water that has sat out for 24 hours or longer so the fluorine in the water dissipates. Fluorine in the water can cause the leaf tips to turn brown.
Use a drainage tray filled with gravel underneath the container to give the plant additional humidity. If the plant is located in a room with air-conditioning, it is vital that the plant have a drainage tray or have the leaves misted regularly with water to keep the air around the plant humid.
Maintain temperatures between 65 and 85 degrees Fahrenheit indoors. If the container plant is placed outdoors in the summer, bring the plant indoors before temperatures drop below 50 degrees Fahrenheit. During the spring and winter months, cooler indoors temperatures intensify the leaf color.
Feed the Hawaiian ti every two months with a 20-10-20 (nitrogen-phosphate-potassium) liquid fertilizer. Use 1 tbsp. for a 6-inch container. If any fertilizer gets on the leaves, rinse the leaves immediately to remove the fertilizer.
Control the size of the plant by cutting back the branches and leaves to 6 inches above the soil when the plant exceeds your height expectations. New growth will appear on the lower stems.