I've never grown it, but from what I've heard it doesn't like being moved or transplanted at all, so it's best to plant it where it's going to stay.

Have you checked the aroid forum? There's usually some discussion about it there, especially if you check the archives. This site has some information too:

Here is a link that might be useful: Amorphophallus titanum

Hi

The minimum winter temps will depend on the origin of your seeds. Amorphophallus titanum comes from anywhere from sea level right up to about 1,200m and, obviously, the higher altitude plants tolerate lower temps.
If you have seeds from a plant that was from the upper range of titanum then minimum temps of about 15C are acceptable. Otherwise I would try not to let them get below about 18C.

Feel free to message me if you have any other questions, the link that LisaCLV has posted above is to my site.

Cheers, Troy.

I have no idea, but guess you will know very soon.