How to grow Araucaria heterophylla from seed

Discussion in 'Seed Starting / Propagation' started by liono, Mar 2, 2016.

  1. liono

    liono Seedling

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    Hi,

    I got an Araucaria heterophylla cone from a friend's tree. I cut it off the tree not collected it from ground (see photos). I read about germinating those beautiful trees online and experts say they germinate within two weeks.

    I have put some on tissue+plastic bag since 4 weeks, non germinated. Tried planting them in different conditions, peat-moss in the fridge, direct in the ground, soaked in water then planted in dirt indoors. Nothing worked.

    What could be wrong? How to check if the seeds are viable? is the water floating seed test OK for these type of seeds, as the all float when put in a jar full of water?

    Thanks

    Araucaria heterophylla Cone1.JPG Araucaria heterophylla Cone2.JPG Araucaria heterophylla Seed.JPG Araucaria heterophylla Seeds.JPG
     
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  3. toni

    toni Mistress of Garden Junque Staff Member Moderator Plants Contributor

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    Can you get one that is already on the ground? The seeds in the pod taken from the tree might not have been mature and not ready to germinate. If you try the seeds from one that has already ripened and fallen off the tree maybe you will have better results.
     
  4. zuzu's petals

    zuzu's petals Silly Old Bat Plants Contributor

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    The document linked here may provide some help:
    Norfolk Island Pine
    Production Guide
    It doesn't seem as though they are suggesting anything "fancier" than laying the seeds flat directly on top of the medium (apparently a particular light level is preferred/beneficial) and keeping the medium moist:

    Hope that you can get some of your seed growing, and maybe you'll find some other helpful info in the rest of that document.
     
  5. liono

    liono Seedling

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    Thanks zuzu's petals. I have seen those and you are right, the method of planting the seeds is very simple.

    I suspect that the seeds may have not been pollinated. Is there a way to check the seeds for viability? Does water soaking and check which seeds sink work with this type of seeds?

    Thanks
     
  6. zuzu's petals

    zuzu's petals Silly Old Bat Plants Contributor

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    Ah, :( sorry that link didn't contain the info that you need at this time.

    I do know that I've heard that N.I. Pine seeds lose their viability surprising quickly after harvest even in an ideal situation - and yeah, if they may not have been pollinated, or had not fully matured, as Toni noted ... I see why you'd like to find a test that could help to be sure

    I wish that I could give you a definitive answer about the float test - but the only Norfolk Island Pine seeds that I've actually handled had quite a lot of "papery" coating, and because of that, I'm pretty sure that they'd float, either way.
    Hopefully, someone else with more hands-on experience may chime in.
     

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