Please help! My Bougainvilleas are dying!

Discussion in 'HortForum' started by Anca, Feb 12, 2020.

  1. Anca

    Anca New Member

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    Location:
    Southern California
    Any idea why my bougainvilleas turned brown? Anything I can do to save them? I’ve had them for a couple of years and this is the first time this happened. No changes in light exposure or water quantity. I live in SoCal and we’ve had temperatures of 30 at night in the past couple of weeks, so not sure if that has anything to do with it. Please help!
     

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  2. Eric La Fountaine

    Eric La Fountaine Contributor UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    Bougainvilleas don't handle freezing temperatures very well. It is likely they were damaged by that. I do not have experience with bougainvillea, as I have never lived in a warm climate, but I see it growing in Arizona, where temps go below freezing many winters, so it must survive. People do cover the plants there when frost is forecast though. Hopefully your plant will regenerate.
     
  3. Puddleton

    Puddleton Active Member 10 Years

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    Location:
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    Wow. They look very sick.
    0 degrees celsius is very cold for bougainvillea. If it wasn't frosty then they may not recover. The sap freezes, expands and spilts the branches
    Gently run your thumb nail on a main branch or trunk. If the wood is still green then it should bud up and grow.
    Don't prune until it starts to grow away then just remove the dead wood.
    If you get regular cold winter temps then consider planting on a south facing masonry wall.
    The warmth from the wall will keep it comfortable during the cold
     
    Tom Hulse likes this.
  4. Hilaryclaire

    Hilaryclaire New Member

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    Location:
    Alberta beach, Alberta.
    My bougainvillea got frosted this year. It is potted and in an Unheated sun room.
    I thought I’d lost it but I cut it back and it’s got lots of new growth.
    I see yours are outside, so try cutting them back and check the trunk for bright light green new growth. And give it a good drink also.
    Hope this helps.
     

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