My monkey puzzle tree is wilting- branches turning brown/black and doesn't feel particularly firm to touch like it used to.

I got it last November and kept it inside over the winter as I thought it was too small to handle the frost, and have only just transported it back outside.

While it was inside it seemed to deteriorate quite a lot- I think I should have kept it outside really, as maybe it didn't get enough light/was too warm.

It's been outside now for a couple of weeks but still looks like it is deteriorating. Can anyone suggest what might be the problem? monkey tree

  • what part of the world are you in - did you harden the plant off before moving outside, or just put it straight out?
    – Bamboo
    Apr 7, 2019 at 14:07
  • In UK- moved it straight out
    – user284408
    Apr 7, 2019 at 14:44

1 Answer 1


I'm sorry to say that you are absolutely right in that it should have been kept outdoors all winter. They are a marginally more cold sensitive in pots when they're small, but standing it in a sheltered spot over winter would have been fine, especially this year, because we haven't had much of a winter in the UK, really, and you'd still have a healthy plant if you had - they do not do well indoors. In fact, they're listed as H7 on the hardiness scale (downwards of -20C) and in a pot at a young age, hardy down to -15C so long as the soil in the pot doesn't freeze (a rare event in the UK). I don't think hardening it off before leaving outside all the time would have made much difference in this case as its in such a bad state, but hardening off over a week or so is the usual procedure when wanting to transfer plants outside.

It may be too late for the plant - there is nothing you can do other than watch and wait I'm afraid.

UPDATE: As its such a young plant, if its much worse now but still alive, you could try cutting back to see if that encourages some regeneration, though only very small plants might respond to such pruning.

  • Did not realize they are so frost-hardy. I've only seen them outside in San Diego/So. Cal. I've never seen one in Arizona.
    – Tim Nevins
    Apr 9, 2019 at 19:09
  • @TimNevins for interest's sake see here rhs.org.uk/Plants/1456/Araucaria-araucana/Details
    – Bamboo
    Apr 9, 2019 at 20:33
  • @Bamboo Thankyou for your answer. It has been outside since then and looks as though it is perking up a whole year on. There is new growth out the top!
    – user284408
    Jun 4, 2020 at 20:56

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