How to Use an Apple to Force a Pineapple to Flower


Pineapple is a member of the bromeliad family. A pineapple plant grown in fields can mature in 18 months, but an indoor pineapple plant typically takes 24 to 30 months to reach the stage where it can flower. Even after your pineapple plant reaches maturity (it should be at least 24 inches tall), you may still need to force it to flower, which you can do by exposing the plant to the ethylene gas produced by ripe apples.

Step 1

Place two ripe apples, or cut pieces of apple, in the pot with the pineapple plant.

Step 2

Cover the pineapple plant and the apples (or the apple pieces) completely in a clear plastic bag. Seal the bag and set the covered plant in a shaded area for four to five days.

Step 3

Unseal the bag and remove it from the pineapple plant and the apples. The pineapple plant should flower in two to four months.

Tips and Warnings

  • Use this method of forcing plants to flower only on bromeliads, because ethylene gas can harm and even kill plants from other families.

Things You'll Need

  • Mature pineapple plant
  • 2 ripe apples
  • Knife
  • Clear plastic bag


  • University of Hawaii: Department of Tropical Plant and Soil Sciences: How to Grow a Pineapple in Your Home
  • University of New Hampshire Cooperative Extension: Houseplants from the Kitchen
  • Cornell University Cooperative Extension Nassau County: Pineapple Plant

Who Can Help

  • Clemson University Extension: Home and Garden Information Center: Bromeliads
Keywords: growing pineapple, pineapple flowers, force-flowering pineapples

About this Author

Based in Southern Pennsylvania, Bertha M. Chambers has been writing on a wide range of topics for over a decade. Her work has appeared in projects by The National Network for Artist Placement, the-phone-book Limited and GateHouse Media. She holds a Bachelor of Arts in English from Shippensburg University.

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