Our 8 year-old clump of Amorphophallus bulbifer ‘Old Warty’ is looking lovely in the garden this week. We love the palm-like form in the summer garden, but selected this clone because it produces more leaf bulbils than any other clone we’ve ever seen. The bulbils, which resemble giant warts, form in late summer in the leaf axils on the top of the leaf. A typical clone of Amorphophallus bulbifer may have from 3-8 bulbils, while A. ‘Old Warty’ usually produces dozens per leaf.
Each bulbil, which is a clone of the original, can be planted after it detaches from the leaf, and will begin growing the following spring. We had so many bulbils one fall, that we gave them out to trick-or-treaters one Halloween, but strangely, those recipients never again returned for more treats- obviously, they weren’t horticulturally inclined. We did tell them not so consume them…honest.
The spring pink flowers have no discernable fragrance, unlike many of the other species of amorphophallus. These have been winter hardy here in Zone 7b for at least three decades, where they thrive in well-drained woodland soils. We will have these available again next year.