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  Re: [Aroid-l] I need information on Amorphophallus Paeonifolius
From: "Russell Coker" <cokerra at bellsouth.net> on 2008.10.28 at 14:57:05(18684)
Tee,

I'm no expert, but my paeoniifolius experience has been different from what
Ron and Ken recommend.

I'll preface this by saying that I'm on the Gulf Coast, zone 8b. You did
not mention where you are. While it may be "best to extend the growing
season as long as you can", you may one day end up with a plant so big that
you don't have a place to put it.

What attracted me to this species was that it is big and impressive, BUT
also follows the seasons and goes dormant so I figured it would be ground
hardy for me. I bought the first tennis ball sized tuber 4 years ago. I
planted it in a pot and left it alone that first summer. When the weather
was not to its liking, it went dormant just like konjac (and caladiums) - I
don't remember if that had anything to do with frost or not. I repotted it
and its offsets, but left them all sitting on the ground through the winter.
They came up the following spring and did fine through the summer. Last
summer I planted them in the ground, the tallest plant being over three feet
tall by then. Again they went dormant when conditions didn't suit them.
All winter I wondered if they were rotting in the ground, but this past
spring the all came back up eventually standing 4 to over 6 feet tall -
really impressive. My plants have very rough petioles, by the way.

We've had cool, dry weather now for about a month, but they don't show any
signs of going dormant. Last night we went down to the upper 30's, and
tonight will be a little colder. I'll see a difference this week for sure
as they begin to die down.

I guess the point of all of this is that there is nothing wrong with
protecting the plant from cold and dormancy for as long as you can. But when
the day comes that your plant is too big to handle there is also nothing
wrong with forcing dormancy by leaving it exposed to cool, dry autumn air,
withholding water and storing a dormant tuber for the winter.

Russell

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