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From: Jim McClem <JimMcClem at AOL.COM>
Subject: Re: mystery
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In a message dated 42398 11:25:45 AM, you wrote:

<<as anybody else had this occur?  A mature Arisaema triphyllum

bulb/corm/tuber that I wintered over outside in a six inch pot has

disappeared.  In it's place are seven little baby corms about the size of=a

pea.  I am pleased that it has propagated itself and multiplied,  but ver=y

disappointed as I was hoping for a bloom from this particular plant.  Can

anyone tell me what happened and how to prevent a repeat?

>>

Arisaemas are particularly prone to rot when dormant, potted and allowed =to
get too wet, which can easily happen outdoors in the winter. However, it =can
also happen when they are planted in the ground. My largest A. sikokianum
disappeared this past winter, and that's not the first one!  A few years =ago
WeDu Nursery stopped handling arisaemas because of this problem.

I think that a good basic dictum to follow is that the larger the tuber, =the
less moisture it needs (or can tolerate) while dormant. If you want to gr=ow
arisaemas in pots, it might be smarter to remove them from the pots in th=e
fall (at least the large tubers) and let them stay almost dry. They all g=et
new roots every year, so winter moisture isn't necessary for anything exc=ept
to keep smaller tubers from shriveling up to nothing.

Jim McClements, Dover, DE