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Re: Failed Amorphophallus Bloom

  • Subject: Re: Failed Amorphophallus Bloom
  • From: "Marek Argent" <abri1973@wp.pl>
  • Date: Wed, 18 Feb 2009 18:35:54 +0100

So, the temperature is ok. I observed failing of the inflorescences when it was below 50-55F in my Zantedeschias growing outdoors. Houseplants can fail to bloom when it's below 60F, Anthurium cultivars even below 63F. My Amorphophallus plants depending on a species bloomed in 58-80F.
Looking again at your photos I can tell it was planted too shallow. This may be the reason - it could have weak roots or a lack of them.
----- Original Message -----
From: David
Sent: Tuesday, February 17, 2009 2:50 AM
Subject: Re: [Aroid-l] Failed Amorphophallus Bloom

Thanks for the reply, but how cold is "cold"? Right now the temperature ranges from 81-86F on most days (day and night), and some days it can go up to about 90F. Does it need to be hotter than this then?

And is it just for the flower, or is it overall for this species (leaf as well as dormancy)?

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