Scary Plant Names for Halloween!



Tonight is Halloween and everywhere, little ghosts and goblins will ring our doorbells in costumes designed to scare us half to death. But plants too sometimes have names that chill our blood. Here is a selection of plants with horrifying names that seem to have been specially designed for Halloween.

Bloodroot (Sanguinaria canadensis)

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The immaculate white flower of the bloodroot belies its blood red sap. Source:

Let’s start with the bloodroot. It’s common in deciduous forests throughout eastern North America and makes an excellent perennial for woodland gardens. There’s nothing bloody about the immaculate white flower of the small plant, though. You have to dig it up and cut into its rhizome to see the flow of blood red sap that earned it its name. The root was used in traditional medicine to treat blood diseases and cancers and even today bloodroot salves are available online, but the extreme toxicity of the plant has banished it from mainstream medicine.

Ghost Plant (Monotropa uniflora)

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The absence of chlorophyll gives the ghost plant a spectral white color. Source:

The ghost plant, also called ghost pipe or Indian pipe, owes its phantasmal name to its unique cadaveric white coloring. It’s a parasitic perennial living on conifer roots and spends most of its life underground. Only the arching flower stem, bearing scales and a single bell-shaped flower, all of a ghostly white, rises from the ground. Many people mistake it for a mushroom, but the ghost plant is a true flowering plant, in fact, belonging to the rhododendron family (Ericaceae). A flowering plant of such pallor, and parasitic to boot, seems particularly ghoulish. It’s found in the forests of the Northern Hemisphere and is especially abundant in Eastern North America.

Monstera (Monstera deliciosa)

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The huge cut leaves of the monstera. Source:

As far as monsters go, this popular houseplant is rather a nice one. The name comes from its heart-shaped leaves of monstrous size, up to 3 feet (90 cm) in diameter, full of holes and slashes. To stay with the Halloween theme, you could say that they seem to have been carved out by Freddy Krueger! The holes in the leaves also give this plant a less gruesome name: Swiss cheese plant. Curiously, while monstera fruits are poisonous when immature, they are edible and, in fact, delicious when ripe, tasting, I’m told, like pineapple, hence its deliciosa epithet.

Dracula Orchid (Dracula vampira)

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It’s the black flower of the Dracula orchid that earned it its name. Source: Eric Hunt, Wikimedia Commons

This Ecuadorian orchid takes its name from its large, almost black, three-sepaled flowers that can be reminiscent of the cape of the mythical Count Dracula or perhaps, with a little imagination, a bat with three wings. It’s an epiphytic plant (one which grows on other plants) and you sometimes see it in orchid shows. Needless to say, with a name like Dracula vampira, it attracts a lot of attention!

Zombie Palm (Zombia antillarum)

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The sharp spines of the zombie palm are downright scary! Source: tropical.theferns

The zombie palm gets its name from its origin as well as its frightening appearance, since this small palm because it comes from Haiti, the country of origin of zombies. Its stem is so covered in piercing thorns that nobody but a zombie would dare to approach it.

Devil’s Claw (Proboscidea louisianica)

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You wouldn’t want to run into a devil’s claw seed capsule barefoot! Source: Steven Laymon, Office of Land Management and John D. Byrd, Mississippi State University,

The plant is a pretty annual with pink flowers and is indeed sometimes sold in seed packets. There is absolutely nothing threatening about it at this stage. But the seed capsule that follows bloom is long and black with two very pointed “horns” at the end, like devilish claws. The capsule latches onto the legs of passing animals, dropping seeds as the animal scratches desperately in an attempt to remove it. And it would appear that a barefoot meeting with this ultra-thorny capsule is nothing to laugh about!

Death Apple (Hippomane mancinella)

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The fruit of the death apple could be mistaken for a little green apple … but don’t eat it! Source:

This tree, also called manchineel, is a common sight on the beaches of tropical America. It produces small green fruits that look like apples (in fact, the name manchineel derives from the Spanish manzanilla, or “little apple”), but are so toxic that they would kill anyone who dared eat one, thus earning it its macabre name. In fact, this plant is toxic in all its parts. Even sheltering under its branches during a rain storm can cause skin lesions from particles picked up by water dripping over the leaves!

Strangler Fig (Ficus spp.)

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This strangler fig tree is attacking a sculpture of Buddha in Ayutthaya, Thailand. Source:

There is not just one species of strangler fig, but dozens species of Ficus found throughout the Tropics that share the same ghoulish way of life. The seeds germinate on the branches of a tree of another species, then the roots of the strangler gradually wrap around the trunk of its host. Over time, it eventually suffocates (strangles) the other tree and then takes its place as a forest giant. The weeping fig (Ficus benjamina), a common houseplant often used as an indoor tree, is one of these strangler figs. So maybe taking a nap it its foot isn’t the wisest thing to do!

Bat Flower (Tacca chantrieri)

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The bat flower’s shape and color can indeed seem quite batlike. Source:

The huge black flowers of this houseplant are the stuff of nightmares. They can be up to 1 foot (30 cm) across and consist of two black “wings” with long, slender black whiskers that can exceed 2 feet (60 cm) in length. It’s often sold as a houseplant, but you’ll need really good humidity (i.e. greenhouse levels!) to keep it happy.

Corpse Flower (Amorphophallus titanum)

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When the corpse flower is fully open, you can smell it from afar! Source: Leif Jørgensen, Wikimedia Commons

This plant, which produces the world’s largest inflorescence, up to 10 feet (3 m) tall, grows from a huge underground tuber. Every year, it produces a single gigantic, deeply cut leaf, perfectly erect on a petiole measuring up to 20 feet (6 m) tall. It could easily be mistaken for a trunk and gives the leaf the appearance of a tree. Every decade or so, the plant produces a gigantic inflorescence that gives off an intense smell of decaying flesh, hence the name corpse flower. You’ll have guessed that it attracts, as a pollinator, carrion flies. The bloom lasts only three days, but often attracts crowds to the botanical gardens that grow it: everyone wants to see—and smell!—the horrendous monster!

If you do a bit of research, you’ll find lots of other plants with equally scary names: spider plant, bloody cranesbill, wolfsbane, ‘Bloody Butcher’ corn, devil tree and many more. Certainly enough to give Halloween a macabre touch of green!

4 Other Plants With Weird Foliage


The curious leaves of Albuca spiralis ‘Frizzle Sizzle’ roll up as if someone had taken a curling iron to them! Source:

I recently wrote a blog called 5 Plants with Weird Foliage and promised more. Here’s a second blog on the subject featuring four other plants with really strange leaves.

Corkscrew Albuca (Albuca spiralis ‘Frizzle Sizzle’)

Nobody knows why corkscrew albuca leaves curl up like corkscrews, but that’s what they do, both in the wild (South Africa) and in our homes. Perhaps curled leaves offer some protection against the very intense sun of its native land? But that’s just my guess. I’ve never heard of any study on the subject.

From Collector’s Object to (Almost) Everyday Annual


The bulb is usually buried, but you can leave it partly exposed if you wish. Source:

This plant was once a rare collector’s item, but has, over the last few years, become somewhat of a garden center star, showing up by the hundreds in nurseries and selling like hot cakes. You’ll mostly see it offered as an annual in the spring: a single plant in a small pot. However, it’s much more expensive than the average annual: you’re not likely to be willing to fork out the money to do mass plantings of it like you might a petunia! It’s best to think of it as a “horticultural curiosity” and to use it as such, giving it a starring role in a container rather than losing it from sight in a crowded flower bed.

I recommend using corkscrew albuca as a houseplant. You might want to put it outside for the summer, of course, but do bring it back indoors in the fall. Of course, readers from milder climates than mine (zones 8 to 11) can also experiment with it as a permanent outdoor plant. I’ve heard that it’s not hard to grow outdoors, especially if you can give it a Mediterranean climate: hot, dry summers and cool, rainier winters.

I don’t suspect this plant will remain popular very long, though. It’s definitely more a curiosity than truly pretty. Most people try it once, enjoy it, then go on to other things. It’s the kind of plant only plant collectors really love.

A Description

Albuca spiralis ’Frizzle Sizzle is a small succulent plant, about 4 to 8 inches (10 to 20 cm) tall and 6 to 8 inches (15 to 20 cm), from the Asparagaceae family. It sprouts from an underground bulb (although, if you want to, you could grow the bulb nearly completely exposed, with only its base and roots buried). It looks much a round greenish onion. (But don’t eat it: it’s poisonous.)

The spiral leaves are medium green, sometimes a little bluish. The drier the conditions are, the more the leaves curl, so don’t overwater. Ditto for fertilization. Rich soil means fewer swirls!

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The blooms on Albuca spiralis ‘Frizzle Sizzle’ are surprising enough, but not necessarily striking. Source:

Flowers are borne on short, upright stalks 6 to 8 inches (15 to 20 cm) tall;, with 10 to 20 flowers per stem. The flowers are rather modest in color: green and yellowish. They remind me of dangling trumpet daffodils. There are six tepals, three spreading outwards and three forming a trumpetlike tube. They’re pleasantly scented, but  you have to stick your nose into the flower to really notice.

This cultivar, ‘Frizzle Sizzle’, is a selection of the species made by Dutch nurseryman Gerardus Adrianus Maria Zwidgerst. While it’s said to be curlier than the species (a questionable claim, in my view), it’s true value is that ‘Frizzle Sizzle’ is less linked to a winter-growing season than the species. I’ve tried a few albucas in the past and they were all winter-growing plants. Unfortunately, the very short winter days and resulting low light in my climate didn’t suit them. They tended to remain spindly and were not easy to bloom.

The ‘Frizzle Sizzle’ plant you buy, though, is already primed for spring through summer growth and will likely bloom sporadically throughout the summer. Theoretically, it would then go into dormancy in the fall, losing all its leaves, and stay dormant through the winter before sprouting again in spring for another cycle. And you can grow it like that: you just have to withhold water from fall until you see new growth in spring. However, under most home conditions, I’ve found it will continue to grow all winter as long as you water it.

How to Grow It

Place your corkscrew albuca in a sunny location and water only when the soil is dry. Remember it’s a succulent and doesn’t want to be left soaking. Fertilize only lightly and even then, only while it’s growing. There is no need provide increased air humidity for this plant.

Regular indoor temperatures are fine and you can store it cool for the winter if you allow it to go dormant. It’s said to tolerate a bit of frost, but I wouldn’t risk it if I were you. Any well-drained potting soil will do when the time comes to repot it.

There is one obvious reason why this particular cultivar is widely available: it’s very prolific. It produces multiple offsets you can divide and pot up. They’ll bloom once the bulb is full size, often after only one year.

Titan Arum or Corpse Flower (Amorphophallus titanum)

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The so-called corpse flower does indeed smell of eau de rotting body. Source: Leif Jørgensen, Wikimedia Commons

This plant of the Araceae family is best known for having the largest unbranched inflorescence in the world, sometimes reaching over 10 feet (3.5 m) in height. Whenever it blossoms in a botanical garden, its flowering becomes a huge media event and people come in huge numbers, often lining up for hours to see and smell it (because the inflorescence gives off a nauseating odor, whence the name corpse flower). The flowering lasts only about two or three days, though, so when you hear one is blooming in your area, get over there fast!

The shape of the giant “flower” is also quite suggestive, as the botanical name Amorphophallus titanum means “giant deformed penis.” This “penis” refers to the columnar spadix in the center made up of thousands of tiny flowers. It is surrounded by a huge spathe (bract), green on the outside and a lugubrious deep purple on the inside. Definitely more curious than beautiful.

Leaf as Weird as the Bloom

In the average article about this plant, the story ends there. No one ever seems to mention that the leaf is just as weird and spectacular as the flower … but that’s the point of this particular article.


Tain’t a tree, tis but a leaf: a titanic leaf. Source:

A full-size leaf can reach 23 feet (7 m) in height and 15 feet (5 m) in diameter. Plus the leaf is around for a much longer time: months every year rather than just a few days. In the wild, it goes dormant annually for four to six months, but potted specimens often hold onto their leaf almost all year, until another leaf is ready to grow.

The leaf, in fact, looks more like an entire tree than a leaf. Its thick purple-mottled green petiole, up to a 8 inches (20 cm) in diameter, grows straight upward, like a trunk, and it’s topped with what appear to be leafy branches. However, all the greenery comes from just one single leaf so divided into hundreds of leaflets it looks like a tree top. Distinctly weird, for sure, but also beautiful. Yes, sometimes the two do go together!

You won’t see both flower and leaf on the same plant, at least, not at once. The plant retreats into dormancy in its huge underground tuber and blooms while it is leafless.


Tuber of titan arum. Source:

The tuber is also a record breaker. It increases in size year after year and can reach the incredible weight of 340 lb (154 kg)! It takes a huge pot (I hear Kew Gardens uses 1000 liter containers) to hold it! After the plant blooms, the tuber will shrink back considerably and the next leaf will also lose its titanic size, reaching no higher than the height of the average man. Then both the leaf and the tuber grow in size year after year, storing energy for the upcoming flowering. It usually blooms every 7 to 10 years, depending on growing conditions, then the plant shrinks in size again … and the cycle starts anew.

Not Your Average Houseplant

Obviously, this plant is not a good choice for the average home or garden, at least not unless you live in a large tropical greenhouse or a torrid and humid jungle. While it only needs moderate lighting (it’s a woodland plant in the wild), it’s need for extremely high humidity (80% and above) and warm temperatures (21 to 25 ° C during the day and never less than 19 ° C even at night, at least during the growing season) make it nearly impossible to grow well … and there is also the question of space. Indoors, you’d need a three-story atrium to shelter it. That’s why this plant is usually only grown in botanical gardens.

Other Amorphophallus Species

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Devil’s tongue (Amorphophallus konjac), although a large plant , is small enough to make a reasonable garden plant or houseplant. Source:

There are, however, smaller Amorphophallus species that would be more interesting for the average gardener, such as devil’s tongue, also called snake plant and voodoo lily, A. konjac (A. rivieri), which can be easily grown in pots either as a houseplant or a tender bulb. It can even grow outdoors year-round in mild enough climates (USDA zone 6/AgCan zone 7 and warmer). The single leaf still reaches a very impressive size: 4 to 6 feet (1.2 to 1.8 m) in height! Although this species has the capacity to bloom annually, it will only do so under ideal growing conditions. My plant succeeds no better than A. titanum does in most botanical gardens: it’s only bloomed twice in nearly 20 years … fortunately while it was outdoors for the summer, as the odor would be intolerable indoors. The patent leather purple inflorescence is still huge (and stinky), much like that of A. titanum in shape, although not nearly as large.

Note that the tuber of any amorphophallus must be well covered in soil, because the roots emerge from the top of the tuber, not from the bottom.

Finally, all amorphophallus species are toxic to humans, dogs and cats, although the cooked tuber of many species is edible.

Lettuce Leaf Begonia (Begonia x erythrophylla ’Bunchii’)

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Begonia ‘Bunchii’: a weird-leaved plant anyone can grow. Source: Gail G Taylor, Pinterest

Let’s move on to a more conveniently sized plant, a houseplant that any gardener could grow on a windowsill, but with leaves that are still in the “very weird” category: the so-called lettuce leaf begonia, Begonia x erythrophylla ‘Bunchii’.

This plant originally showed up as a mutation of the popular water-lily begonia (B. x erythrophylla) in 1914 and was named for its discoverer, Lloyd Bunch. Instead of having the smooth leaves typical of the species, the leaf margins of ‘Bunchii’ are strongly ruffled and curled, a bit like curly leaf lettuce as the common name suggests. In addition, the leaves are attractively colored: shiny dark bronzy green above and wine red below. Also, the plant blooms readily in winter (it’s a short-day plant), producing clouds of small pale pink flowers.

This is a true hand-me-down houseplant, grown for generations all over the world, but is rarely offered commercially … probably because it is no longer as fashionable as it was 100 years ago!

The lettuce leaf begonia is easy to grow. It forms creeping aboveground rhizomes that slowly cover the surface of the pot and eventually dangle downwards as the plant matures, making it popular for hanging baskets. It readily tolerates average household conditions, including medium light and typical indoor temperatures. It will even put up with fairly dry air! A little fertilizer from time to time and sometimes a bit of a prune to keep it in check can be useful. This plant is easy to propagate through rhizome cuttings or even leaf or leaf section cuttings.

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Begonia. ‘Crestabruchii’ has even more densely curly leaf edges than Begonia x erythrophylla ‘Bunchii’: . Source. Laurel Carlisle,

That said, ‘Bunchii’ is not the curliest of the begonias. I feel that title belongs to B. ‘Crestabruchii’, a similar but larger plant with bigger, hairier leaves that are extremely ruffled at the edge. On the other hand, I find ‘Crestabruchii’ more difficult to grow well, notably because it tends to go dormant in the fall and can be slow to awaken again in the spring. So, maybe the leaf of ‘Crestabruchii’ is the weirder of the two, but ‘Bruchii’ is much easier to grow.

Warty Echeveria (Echeveria gibbiflora carunculata)

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Strange warty growths on the leaves of Echeveria gibbiflora carunculata certainly give it an otherworldly appearance. Source:

Echeveria is a genus of succulent plants native to the arid regions of Central America and northern South America, named for the Mexican botanical artist Atanasio Echeverría. A member of the Crassulaceae family, it’s closely related to the genus Sedum. Typically, echeverias are short, stocky plants forming a dense rosette of thick leaves, often of a glaucous blue color or heavily covered with white hairs. In summer, they produce branching stalks bearing pink, red or orange bell-shaped flowers, often with yellow tips.

Echeverias look very similar to the well-known hen and chicks or houseleek (Sempervivum spp.) so often grown outdoors in rock gardens in cooler climates and indeed, they are essentially the frost-tender counterparts of the hardy European genus.

Weird Leaf Growths

Warty echeverias are variants or hybrids of E. gibbiflora, one of the largest echeverias. It normally bears smooth, thick, spoon-shaped leaves of a glaucous blue-green color highlighted in pink when the plant is grown in full sun. A variant with warty growths on the leaf top, E. gibbiflora carunculata, was brought into culture from Mexico and is the parent behind all the warty echeverias. The epithet carunculata means “bearing caruncles,” lumpy, bumpy irregular growths, much like the wattle (caruncule) of a turkey.

It’s not clear whether this form is really a subspecies found in the wild and therefore meriting the botanical name E. gibbiflora carunculata or whether it’s a cultivated variety, in which case E. gibbiflora ‘Carunculata’ would be more appropriate.

Whatever the plants’ origin, their leaves are truly weird, as if they were covered by lumps of molten lava. There are no two leaves alike and many of the cultivars have wavy or rolled leaves as well. These are large plants, with rosettes up to 12 inches (30 cm) in diameter. The summer flowers are usually thick red urns and of clearly secondary interest to the curious foliage.

With time, the lower leaves drop off, revealing a thick “trunk” … but most people judge this appearance unsightly and repot the plant occasionally, chopping a part of the bottom of the root ball off so it can be placed deeper in the pot. They then bury the bare part of the stem which soon roots into the surrounding soil. Or they simply cut the head off the plant and use it as a cutting. The “stump” left behind will then produce plantlets that you can remove and root.

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Echeveria ‘Etna’, with even more caruncles than the species, is probably the most popular warty echeveria. Source:

Warty echeverias are quite readily found in garden centers, but usually bear no proper label, making exact identification almost impossible, as there are now many hybrids, including ‘Etna’ (probably the most common), ‘Cameo’, ‘Dick Wright’, ‘Mauna Loa’ and ‘Barbillion’ as well as the original E. gibbiflora carunculata. They can be very hard to tell apart, given the variability of their leaves.


Warty echeverias need full sun to do their best or if not, at least several hours of direct sun each day. Too much shade will cause the plants to decline, producing smaller and smaller leaves until they eventually die. In winter, when days are short and the sun is weak, you might want to move them to a spot under a bright fluorescent or LED light or at least keep them cool and very dry, nearly dormant, to stop any weak growth at that season.

Water relatively abundantly during the growing season, from spring until early fall. This is also the time of year to fertilize (any fertilizer would be suitable) at no more than 1/8th of the regularly recommended rate. In fall and especially the winter, try reduce watering to a minimum, only moistening the growing mix when the soil is thoroughly dry.

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Echeveria gibbiflora carunculata has undeniably weird leaves!. Source:

Regular home temperatures are just fine spring through fall—warty echeverias tolerate even summer heat very well—but, again, unless you can provide plenty of light at that season, they’ll do best with a cool, dry winter. In theory, they can tolerate a touch of frost, but it’s best to avoid temperatures that cool.

The major concern of warty echeverias is high humidity: it can lead to rot. They prefer a well-ventilated spot. It’s especially important to avoid letting water form on the foliage in winter, as it tends to accumulate there and the rot it causes can be fatal. Always use a potting mix that drains well.

Warty echeverias are readily propagated by stem cuttings and offsets. They’re said to grow from leaf cuttings, too, but I’ve had no luck with that.

There you go! Four plants with remarkable and even weird leaves. Keeping visiting the blog even for more plants with weird foliage over the coming weeks and months.20171211A