Pineapple plants are tropical perennials native to Brazil and commonly cultivated for their appealing appearance and edible fruit. The plants typically are grown as houseplants in temperate regions because of their intolerance of cold weather. Pineapple plants can grow up to 5 feet in height, though they generally reach about 3 feet when grown indoors. They will not produce fruit if excellent growing conditions are not provided, but pineapple plants can still provide attractive foliage for the indoor garden, even if they don't fruit.
Plant pineapple plants in 12-inch pots, one per container, filled with commercial potting soil. Place in a location that receives full sunlight throughout the day, such as a west- or south-facing window for the best results.
Maintain a constant daily temperature of 70 to 80 degrees F and a nightly temperature of 55 to 65 degrees F. Normal household temperatures usually are sufficient, but placing the plants in a warm, sunny window will ensure success.
Water pineapple plants once per week, allowing the soil to dry out slightly between applications. Apply the water directly to the soil so the root system can absorb as much moisture as possible.
Feed pineapple plants once every three months with an all-purpose houseplant fertilizer. Water immediately after applying to release the nutrients into the soil. Read the manufacturer's directions for proper application and dosage.
Harvest the pineapple fruit after the it has matured for about 6 months. The bottom half of the shell will be golden in color when ready to harvest. Pick the fruit from the plant and consume immediately or store in the refrigerator for up to three weeks.