Native to southern Brazil and Paraguay, the pineapple (Ananas comosus) is an herbaceous perennial herb that must be grown within a temperature range of 70 to 85 degrees F and at an elevation of no higher than 2,000 feet. Cooler temperatures and higher elevations produce fruit that is too acid and not flavorful. Other than those requirements, the pineapple is a surprisingly easy plant to grow and care for.
Give your pineapple plants all the warmth you can provide. Plant them on the south side of the house where they will be protected from winds, or choose the sunniest, warmest spot in the garden.
Add compost to the soil around the pineapple plants. Scratch it into the soil and water well.
Water the pineapple plant often enough to keep the soil moist, but not soggy. Agriculturists at Purdue University say that under ideal conditions the pineapple plant should be planted in an area that receives 45 inches of rain in the spring and fall.
Fertilize the pineapple plants every two months with 10-6-10 fertilizer applied to the soil at the base of the plant according to package directions.
Inspect the pineapple plants for insects. Pineapple plants are attractive to nematodes, mealybugs, pineapple mites and cutworms. Take a sample of any insect you find to your county cooperative extension office for identification and information on how to deal with it.