Tag Archives: arum

Dead Horse Arum!

I love this photo because it has a fly on it!

Helicodiceros muscivorus

Dead horse Arum or Dead Horse Lily

Family: Araecea

(Synonyms are Helicodiceros crintius and Dracunculus crintitus–I prefer this one of course!)

This Mediterranean island native  is, next to the Corpse Plant, the category killer for rotten botanicals. Like it’s odoriferous cousins the Voodoo Lily and the Vampire Lily, The Dead Horse Arum lures flies and carrion beetles to its pollen coated stamen with the alluring smells of rotting meat, or rotting flesh of horses.(And like its cousins Voodoo and Vampire, it is also not really a lily.)

This beauty sports a wide inflorescence, with a somewhat phallic spadix (well, have you met a spadix that isn’t phallic?) which is made up of tiny male and female flowers. What is referred to as the flower is actually a modified leaf (spathe) plus spadix made up of tiny flowers. The spathe is moddled, usually a rich shade of red but can have some green and even white. The spadix is typically black or deep maroon.

The Dead Horse Arum is also one of a rare group of thermogenic plants. It can raise its own temperature, a handy trick to convince those flies that it really is hot, dead, flesh. How rotten is that? The Corpse Plant does this as well.

Incidentally, other plants that are thermogenic include the Elephant Ear philodendron and certain water lilies. Who knew?

Similar to other arums or aroids the Dead Horse Arum goes dormant. It is grown from a corm and likes a nice hummus rich soil, does great in containers, and can even withstand a bit of a temperature drop, as long as its buried snugly in a said hummus-y soil. I expect this would do well in most climates if kept in a container and properly mulched/brought into a hot house for the winter. That being said, I’m spoiled in my Mediterranean San Francisco climate and wonder if any of you inlanders, Southerners, or Northern Europeans have any experience growing this savory rotanical? Let us know !

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The Lovely Lilies of Death

The Lovely Lilies of Death! Who knew you could grow such novelties as Black Callas, Vampire Liles, Voodoo Liles, and more? The Rotten Botanist, that’s who! This week, Rotten Botany is “dead”icated to some of my all time favorite flowers–what I call the lovely lilies of death. Today, we begin with The Black Calla.

The Black Calla Lily

Botanical Name: Arum palaestinum

Family: Tracheae

You know those classic funereal flowers so often draped across a coffin or propped up in the corner of the parlor room during a wake? They are white with a yellow spike in the center, and if you grew up in the San Francisco Bay Area they very likely grew in your back yard. That would be the classic white Calla Lily,  Zantedeschia aethiopica. The Black Calla Lily, Arum palaestinum, is not a true Calla Lily though they are both members of the same greater family, Araceae. The Black Calla’s spathe is terribly special! Usually it has a greenish exterior that unfurl to reveal a the deep maroon color of the flower with an intensely black spike (spadix) thrusting out of the middle. with a tapered tip that dangles behind it like a tail.  In milder climates, like the one I live in, this plant can can be grown outdoors. Like its distant cousin the white calla, it thrives in sandy soil and can be planted in the shade to partial shade. In climates with a colder snap in the winter it is better suited to be a hot-house or houseplant. But be cautious. Like many of its morbid cousins, there is a faint fetid odor that is emitted when this plant is in full bloom. This is thought to attract its pollinators, usually flies and gnats.

Culture~

Height: Grows from 18-24”.

Hardiness: to 25 º

Light shade, regular water, mildly acidic soil.  Quite likes neglect.

Original native of the Middle East

You can keep it in a pot for a long time, just remember that it dies back completely and loves the rain, so mark the pot well and set it out somewhere it will absorb rain for the winter. Don’t let the “empty” pot fool you! Mine produced only leaves for several years and then bammo! One year in mid-April it bloomed in all its glory.

My Black Calla in bloom!


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