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Coaxing your pineapple to bloom

My mum has been growing a pineapple plant for about 2 yrs now and it gets more and more leaves, but as yet it has not sent up a flower, she is worried that she’ll never get a fruit. Is there anything we can do to aid it?

           Pineapple plant flowering after 2 years from cutting.        Pineapple start bloom

Sometimes pineapple plants are stubborn and need to be coaxed into bloom. One way is to place it in a plastic bag with a few ripe apples for a week. Loosely, seal the clear plastic bag allowing  for some air circulation and keep it in light shade (avoid direct sun).  The apples will release ethylene gas which will stimulate the plant into fruiting.
Another option is placing a small lump of calcium carbide (size of your little fingernail) into the center of your pineapple plant and pour a quarter cup of water over it. This will release acetylene gas which will force it to flower. Do this in the evening when temperatures are cooler. Calcium carbide can be bought in garden center, pharmacy or toy store.

After ”coaxing the pineapple to bloom”,  you should see the start of a flower bud in the center of the plant within 6 weeks.  If not try again.

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7 comments to Coaxing your pineapple to bloom

  • admin

    Coaxing your pineapple to bloom
    Joni Raye ( Barbiefishing@aol.com / )
    From Florida, I have a Pineapple Plant that is 4 yrs old, without fruit. I was told by many people how to expedite fruiting of the plant. I finally did what I kept hearing and now 2 week later my plant has a pineapple. 1 Miniature of rum directly into the center of the plant provides whatever it needed to bloom. Now like other I am afraid to leave it outside for the birds,bats or vermin. worked for me, thus far.

    Thanks for that tip! I’ve never heard of the rum trick. Kris

    Mike H. ( mike3116b@yahoo.com / )
    I have been growing a pineapple for 3 years now and haven’t gotten any fruit off of it. I have 2 questions. 1) the stalk has gotten so big and weak that now it can’t support the rest of the plant. Should I start over?
    2) I think it is too big to put into a bag with apples. What other options do I have? One guy said something about rum?

    You’ll have to support the stalk. Another option other than rum is to lay the plant on its side between waterings – this interferes with the hormones causing ethylene production which is needed to induce flowering.

    Katrina ( jeff_crom@hotmail.com / )
    I have had a pineapple plant potted for at least two years and it has yet to flower or produce a pineapple. It is too large to either lay on its side or put in a bag w/apples. Any advice? Thanks
    Katrina

    You can also force your plant by placing a small lump of calcium carbide (size of your little fingernail) into the center of your plant and pour a quarter cup of water over it. This will release acetylene gas which will force it to flower. Do this in the evening when temperatures are cooler. Calcium carbide can be bought in garden center, pharmacy or toy store. Source:tpss. hawaii.edu/pineapple

  • bob

    how long does it take to grow a pineapple?
    bob

    It can take 2 yrs or more. Flowers should show up 15-23 months after it was planted from the crown and it takes 5-7 mo. from bloom to fruit.

  • kat

    After the mother plant produces a pineapple is it done, or can it produce another?

    It can produce another pineapple from any suckers that it produces, otherwise it’s done.

  • Augie Cassella

    I live in South Florida and have had an inheritd pineapple plant for 1 year and a pineapple growing for 4 months. How will I know when it’s ready to pick?

    Hi Augie
    When the pineapple starts to turn a yellow/orange color and has an aromatic pineapple fragrance, then you can pick it. It takes approx. 5-7 months from bloom to fruit so you’re almost there!

  • Joyce

    I saw that you should fertilize every other week with 1/2 strength fertilizer. What kind of fertilizer. Should it be just for fruits or what?

    Hi Joyce
    A well balanced fertilizer (10-10-10) should work just fine. Someone recommended flower magic (9-18-9) a concentrated liquid for pineapple in the other comments under Growing pineapple.

  • Valerie

    I also have a top that I planted last year. It’s getting pretty big but no fruit. When would be the best time of year to make it fruit? I live in the Tampa area.

    Hi Valerie
    Pineapple naturally develop flowers when days are short (10 hrs) and nights are cool (55-65). Try it in fall – winter. I have had best luck in late winter (indoors).

  • Ronald L. Hughes

    I have a common pineapple plant that has lived basically outside for about 15 to 20 years in a large metal pot. I have not watered it nor fertilized it at any time. It does bloom, and the current one is about 15 inches long and 2-3 inches wide, sort of orange with purple tips.

    Is this normal?

    Hi Ronald
    Is it a pineapple plant or a bromeliad? Does it produce a pineapple fruit? My guess is that its a type of bromeliad.

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