When your Pineapple has filled the glass bottle with roots you have 2 options, pot it or plant it in your garden.
Planting it your garden requires a bit of space about 12 feet across in full sun, though I have grown them under my Macadamia tree. Water them twice a week and wait. When the plant leaves reach a length of 6 feet take 1 teaspoon of Calcium Carbide mixed in 2 cups of water and pour into the center of the leaves; this will force it to flower. This can be obtained at the locale farm store; they know it as chicken manure. It will take 12 to 16 months to start a flower (the flower is your Pineapple). Once the flower appears it just a little while longer, but at least you are able to watch it grow in size. I always wait until I can smell the sweetness before I pick it.
Potting it you will need a fairly large pot, actually you may be better off getting a new clean paint bucket at your local hardware store. Drill drain holes around the sides about ½ a foot above the bottom and 1 or 2 holes in the bottom. Fill with potting soil.
If you plan in growing it inside you will need a fancier pot designed for inside plants. Don’t forget to allow for the full growing size of your Pineapple.