Thanks to all of you!
David, I was lucky, it isn't smelly at all. In general white flowers are less smelly than red-maroon ones. The worst I ever had blooming was Amorphophallus henryi, I had to put it in an airtight box.
Edward, I love the leaves, too. Most of the time there are only leaves, especially the coloration of the petioles I find most fascinating. As they are getting larger each year it is hard to reach every plant for watering now.
The ferruginosus has a leaf 50cm high and with a leafspan of 155cm which emerges after flowering.
Angie, I always give some reference objects on some pics for size is hard to imagine, especially with black backgrounds.
Michael