Wilhelma Stuttgart

[Gerdk]

In that case, I may try it myself next flowering season as neither A. sikokianum nor A. candidissimum makes seed for me. They start to look good then flop over and fail to grow any larger.
On re-reading that it begins to sound like an ad for Viagra but I'm sure you know what I mean.

Lesley, in my garden Arisaema candidissimum makes seeds without any additional human help, so I never looked inside a spathe. Arisaema sikokianum is either female or male. Stronger plants tend to be female (according Homo sapiens).
So if you have some plants of sikokianum have a look inside and you only have to take a brush and transfer the pollen of a male specimen to the female parts of another plant.
See a sketch which I made for an Italian friend.

And believe me - there are no blue pills needed for this transaction! 

Gerd

[Lesley Cox]

Thanks Gerd. It could all be a good occasion for a party.

[ruweiss]

Back to the Wilhelma,-I am pleased and astonished about your interest and the many views.
Our local newspaper wrote today,that the flower opened itself with an evil fragrance which
attracted a lot of flies.The height of this "monster" is "only" 2.34m this time,but a second flower is
forming.They collect pollen from the actual flower to pollinate the second flower and hope to get some
viable seeds. Good luck!

[Maggi Young]

"a second flower is forming".... it that not quite unusual? I thought only one flower was made each year?

[Paul T]

Maybe they have a second titan?

I have plants of the titan growing here as well.  No idea what I am going to do once they get up in size.  Never have enough space to get them to flowering, but it is SO much fun to be growing them, knowing what they are. 

[Lesley Cox]

Maybe they have a second titan?

That seems likely, especially if they are hoping to get seed by pollinating one with the other.