Would you own a plant that only blooms every 3 or 4 years; is the color of raw meat; smells like July roadkill; and whose shape is... decidedly masculine in a well endowed sort of way?
Vitiligo. The leaves sit on top of this stalk and remind me of a Cut-leaf Philodendron in shape and have a somewhat iridescent blue-green color. Even if it doesn't bloom, the foliage alone is worth having in a partially shaded garden. Plant Delights lists this for sale and states that it is hardy in zones 6-10, and I have found it to be very drought tolerant.
Wikipedia, some have been responsible for 17 choking deaths in since 1995. When taken medicinally it is used to treat obesity and diabetes. The body will not digest Amorphophallus, but it makes you feel full, slows digestion and carbohydrate absorption, as well as apparently doing a little deep colon cleansing on the way out. I will just enjoy it as a garden oddity and let someone else experience its other benefits.
When it has finished blooming, the whole thing collapses to the ground, and no little blue pill from Pfizer will revive it. I will have to wait another 3 years to see it bloom again.