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  I need information on Amorphophallus Paeonifolius
From: Don Martinson <LLmen at wi.rr.com> on 2008.10.25 at 15:08:24(18676)
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From: Ken Mosher <ken at spatulacity.com> on 2008.10.25 at 17:27:03(18677)
Hi Ty,

You must bring your paeoniifolius indoors even though it's likely that
you're already too late. Am. paeoniifolius do not like to be cold at
all especially if the soil is damp.

As for the two forms, there is "normal" paeoniifolius and there is the
'Gajendra' cultivar.

Regarding your sp. Madagascar, my guess is that you may have bought them
from Mike Massara who owns http://www.out-of-africa-plants.com/; I'm
sorry I don't remember his ebay seller id. I have bought many excellent
plants from him, but I agree that his response to emails is sometimes
lacking. But to answer your question, in my opinion Mike is not the kind
of person who rips people off. The height of an Amorphophallus is
indicated by tuber size within a species (e.g. a big konjac tuber
generally yields a tall plant) but you cannot make the same prediction
across species. Furthermore, plant height is significantly affected by
growing conditions. As one example, I grew 6 Tacca leontopetalloides
plants this year and the tubers were close in size. 4 were grown in my
greenhouse and 2 grew outdoors until the leaf(ves) were fully grown.
The ones that got more light (outdoors) were 1/2 the height of those in
the greenhouse. There was no need to grow a big, tall leaf in full sun,
but when grown in less light they were encouraged to grow a much more
impressive canopy.

-Ken Mosher

From: "E.Vincent Morano" <ironious2 at yahoo.com> on 2008.10.25 at 18:46:10(18678)
In regards to the tubers from Madagascar, if memory servers me correctly the sellers name is "african-plants" and they are a very reputable seller. At least yours grew. Mine died. But I have seen these new tubers from other sources so you are probably safe. It would be better if you could post pictures of them.

--- On Fri, 10/24/08, Ty York wrote:

From: Ty York



From: ronmchatton at aol.com on 2008.10.25 at 21:15:22(18679)

It's best to do what you can to extend the growing season as long as
you can. I would bring them in. Here in Central Florida they are
ground and pot hardy but they tend to rot in Atlanta if they aren't
brought in before it gets cold.

Amorphophallus paeoniifolius is a very variable species. Some stay
fairly short and some, especially the group called Borneo Giant, can
reach 8-9 feet tall. The same is true of koratensis. They also very a
great deal in the number of leaflets and the roughness of the petiole.
I have a group raised from seed here in Florida that have virtually
smooth petioles, some from China that are somewhat rougher and a group
that have extremely rough petioles. The more light you give them, the
smaller the leaf will be as well.

Those corms that came in from Madagascar were, depending on the
species, seriously infected with a fungal infection. Many of them
simply rotted away and there were a couple of postings on aroid- about
it. The others sprouted and, depending on how quickly or to the extent
the corm was infected produced leaves from a few inches tall to up to
about about 4 feet. The species from Kalenbenobo seemed the least
damaged and many of the larger corms produced leaves a few feet tall.
To my knowledge, the hildebrantii have all been lost to rot. Those
from Nosy Faly and Nosy Mitsio vary in between. The Nosy Faly growths
have all been larger than the other group. So, that having been said,
I don't think you were had....these are interesting plants that weren't
available anywhere else, but it will be some time before they are
strong plants.

Ron McHatton

From: Susan B <honeybunny442 at yahoo.com> on 2008.10.26 at 03:12:57(18680)
Very reputable seller, I've bought a few of their plants over the years, they used to have an extensive website before they started doing a lot of ebay sales, I believe they still have specimen plants on their website. Business is called Out of Africa.
I too needed to get a better photo of a plant I bought from them, while it seems to be an Aroid (had a teeny little aroid like inforescence), it was definitely not an Amorph.
I'll have to dig through the GH and see if I can find it.

Regarding the two different paeoniifolius, I was cleaning out my inbox tonight and found your reference, Ron McHatton answered a paeon. question, said both paeon and some koratensis seem to have varieties- rough and smooth petioles, and difference in height.



From: bonaventure at optonline.net on 2008.10.27 at 21:09:07(18683)
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From: "Russell Coker" <cokerra at bellsouth.net> on 2008.10.28 at 14:57:05(18684)

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.


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