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Rerooting 'long' angraecums

Discussion in 'Orchid Culture' started by xmpraedicta, Mar 6, 2019.

  1. xmpraedicta

    xmpraedicta Prairie angraecoid nut Supporting Member

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    Hello all,

    I'm wondering whether anyone has go-to strategies for rehabilitating/rooting long angraecums. I'm speaking of species like Angraecum vigueiri, germinyanum, corrugatum etc.

    I have an old vigueri that unexpectedly declined, and I suspected either the existing roots were not happy, or something happened and part of the stem died, thus cutting off nutrient/water support from the growing point. The plant is over a foot long, with leaves at one end, a bunch of roots at the other (I cannot tell if they are alive/dead) and a long skinny stem in between. No soft spots I can tell in the stem, but there may be some occult death that's occurred somewhere along the stem.

    I'm torn whether to try and pot the plant up and hope for new root growth at the base, or 'decapitate' it and hope to stimulate growth nearer to the growing point. I'll do the usual kelp soak and warm temps. Any other recommendations?
     
  2. leo

    leo African orchids only :-)

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    Are you growing it upright? Perhaps it would do better if you leave it go pendant so the plant doesn‘t have to pump everything up a very long stem. I made a similar experience with an old Jumellea rigida: two long stems (60-70 cm) one of which died a sudden death. I removed the support and let the remaining stem bend over. It is not (yet) pendant, but stopped dying at least. Still observing this one...
     
  3. xmpraedicta

    xmpraedicta Prairie angraecoid nut Supporting Member

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    Thanks Leo - yes it was growing pendant. In fact the plant was starting to grow upright! Not sure what to do with the thing now - I find these very tricky to root. I had a rootless piece of another species (ang. corrugatum) and even after 2 months, no root growth and the piece just declined.