Typhonium giganteum
Johannes Ulrich Urban (Sat, 13 Jul 2019 14:53:45 PDT)

Hello James,

Typhonium giganteum 'Indian Giant' is very distinct from the ordinary
form. The tubers can attain a diameter of about 10 inches, if not more,
the flower and especially the leaves are truly gigantic. A friend of
mine in Germany grows them in 100l containers (one tuber per container)
to get the best results. it is not reliably hardy in Germany so it is
pot grown.

Here in Portugal I grow it in the open garden. Last summer it got a bit
neglected and did not get much water because I was so busy with
everything else. I dug it up in autum and to my surprise two tubers
flowered out of the paper bag in which it was stored. The smell was
phantastic...  Both tubers and a few offsets are now in a good place in
the garden and get regular water. The leaf has not yet fully unfolded
but looks gigantic already. A magnificent plant.

What you say about your plant sounds much more like the ordinary form,
maybe there was an error somewhere?

I have never had seed on my plants because I think it is all one clone,
propagated by offsets. The pink fruit mentioned, did it contain viable
seed? Also, I canot comment on the depth the tubers grow, mine are
planted with about 5 inches of soil above the tuber.

Bye for today,

Uli

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