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Fact and Fiction of Man-Eating Plants

Fact and Fiction of Man-Eating Plants - Nature Hills Nursery

Charlotte Weidner |

They've been a staple ingredient for horror for centuries - Man-eating plants, body snatchers and mind-controlling monsters, bloodsuckers, and creepy-crawly things that go bump in the night. Plants are the silent member of a league that includes Vampires, Frankenstein, and Werewolves. Strange plant myths have permeated nightmares, literature, television, and film. And why shouldn't they?

From Devil’s Claw, Death Apple, and Witches Hair to Dracula Orchids or Zombie Palms, many plants have spooky-sounding names too! Whether it's a ten-year-old with his pet Venus Fly Trap or explorers warily moving through the jungle, the supernatural and myth of man-eating or moving plants are a primal curiosity and fear.

Botanophobia is the Term for an Intense Fear of Plants!

Living Death Traps - Carnivorous Plants!

Carnivorous plants

In soil with poor fertility, some plants have to resort to other more nefarious means. Influencing books and movies like "Little Shop of Horrors", “Dr. Terror’s House of Horrors” (1965), and "Invasion of the Body Snatchers". While as terrifying as they are in our imagination, they are just as terrifying in real life! Luckily for us, on a much smaller scale!

The Venus Fly Trap, even when motionless, looks alien and deadly! Each of its modified leaves ends in what appears to be a mouth, and the coincidental red coloring on its palate and toothy-looking teeth-like hairs around its trap-door mouth only reinforces the imagery. Luckily, these only trap insects, invertebrates, and small frogs or lizards too slow to escape. Once triggered, specialized cells inside its ‘mouth’ leach the nitrogen from the victim's body.

While Venus Fly Traps may be the most famous carnivorous plant, the Pitcher Plant is by far the most common. Out of all carnivorous plants, Nepenthes, Cobras Tongue/Cobra Lilys, Tropical Pitcher Plants are the only ones capable of consuming mammals. The traps of the Nepenthes rajah and Rafflesiana are so large that drowned rats, frogs, lizards, birds, and even small monkeys have been found inside

Once drowned, the prey creatures dissolve in the corrosive fluid inside the pitcher - much like our stomach. The only thing keeping these plants from being man-eaters is their size; they are too small for people to fall into them.

Sundews are another carnivorous species that have sticky substances on specialized leaves that trap and then dissolve insects for extra nutrients. There are even aquatic predatory plants called Bladderworts that eat anything they can catch underwater! If a small animal triggers the bristles of a Bladderwort, it triggers a trap that suddenly opens and causes a quick rush of water that sucks the prey inside.

Nyctohylophobia - Fear of Dark Woods at Night

Man-Eating Trees

In a 1924 book titled, "Madagascar, Land of the Man-Eating Tree", and there is H.G. Wells' short story "The Flowering of the Strange Orchid" that both delve into the frightening possibility of man-eating trees and plants! While we don’t have any man-eating orchids or trees, there is a Sheep Eating plant that may well be the stuff of nightmares!

Puya chilensis are infamous plants in Chile. Members of the Bromeliad family, Puya are related to Pineapples. When in bloom, they can grow to 8-9 feet (3 meters) high. These plants live in poor soil and harsh conditions, so to make up for their lack of nutrients, they’ve developed long jagged spikes that protect the plants from browsing. However, these jagged spikes are also well known to grab onto animals' fleece (typically sheep in the area) and trap them until they starve and die. Their rotting corpse adds nutrients to the soil at the base of the plant!

Anthophobia is the Extreme Fear of Flowers!

The Stench of Death!

Corpse Flower

Not all Corpse flowers are carnivorous, but ironically they may very well be where the legends of jungle-dwelling man-eating plants come from! The Titan Arum and Dead Horse Arum (Helicodiceros muscivorus) is a smaller version of the Titan but there are actually dozens of varieties in the Arum family! While these may not be man or insect eaters, they certainly smell like there’s something dead nearby! The purpose of this scent is simple - Carrion flowers rely on insects such as flies and beetles for pollination. Since these insects feed on rotting flesh, the smell attracts them!

The Titan Arum is an enormous plant and is in fact the largest flower in the world reaching heights of over nine feet. One can only imagine a native tribe moving through the jungle only to stumble upon a plant nearly twice their size, and reeking of decayed flesh. It wouldn't be hard to assume what the intimidating plant's natural diet must be.

Today, Carrion flowers are a crown jewel within the world's greatest botanical gardens. Another flower that smells like carrion is Rafflesia Arnoldii are both enormous flowers that earned their ghoulish nicknames by giving off the scent of rotting flesh. The Rafflesia Corpse Flower also smells like death itself and can reach 3 feet (1 meter) across and weigh 15 pounds is also parasitic and leeches nutrients off the roots of its host plant. The Starfish Cactus (Stapelia gigantea) also stink like death itself to attract its pollinators.

Dracunculus vulgaris has many names including Voodoo Lily, Snake Lily, Stink Lily, the Black Dragon and Dragonwort is one vulgar-smelling West Coast in California, Oregon and Washington.

Hylophobia - Fear of Forests

Walking Plants and Shambling Mounds!

In the novel and movie "The Day of the Triffids", Triffids are a species of highly venomous, fully mobile, carnivorous plants with at least basic intelligence. The origin of the plants is never set in stone, but it is strongly suggested that they are the result of experiments within the Soviet Union. Triffids remain rooted when at rest, but are completely capable of uprooting themselves and "walking". In real life, we do actually have ‘walking’ plants! From Egyptian Walking Onions to walking grass. Plants that can travel are able to better spread their seeds over a larger area while limiting competition in their own areas.

Walking Plants

Walking Onions accomplish this by forming bulblets and small plants on their tall stalks that then fall over when ready. The babies on the tops, then root and start the process over again but farther from the parent plant.

A Wild Oat in Israel has two spurs or bristles called ‘awns’ and once they fall from the seedheads can unwind, causing the seed to ‘walk’ away from the parent plant and find new ground to root in.

A rainforest Palm tree (Socratea exorrhiza) native to tropical Central and South America jas developed a method of walking from shade to sun! By growing new roots towards the direction they want to travel and allowing the old roots to die so they can move. These trees have been clocked moving 2 centimeters a day and up to 20 meters a year if needed!

Dendrophobia is the fear of Trees!

Plants That Are Smarter Than Us? The Blob May Be!

In 1958 a big ball of pink slime ate everything in its path in the movie "The Blob", but there are real-life Blobs! Physarum polycephalum has been studied by scientists for years and a nicknamed "The Blob" because of how these acellular Slime Molds move and grow. What’s so special about this mold? Well, Slime molds are an amoeba-like group of organisms called myxomycetes. They have 720 sexes, heal themselves in minutes when cut in half, and can solve mazes! Their gooey, bright-colored branched - almost fractal or net-like bodies - can be found creeping along over logs and the forest floor. Their cells can ‘smell’ food, and have a unique way they propel their protoplasm toward food by pulsing or squeezing towards it - while learning the most efficient route to it.

Blob Plant

One Slime Mold being studied in France is aptly named The Blob, which has proven that it can learn and then retain what it learned for at least a year - even passing the learned information on to its offspring! Solving complex math and algorithms with efficiency, these Slime Molds are being used to streamline city roads and subway routes and may even help engineer faster computers!

All this without a mouth, nervous system, eyes, or brain! Lucky for us, these extra-terrestrial-looking fungi only eat bacteria, yeast and decomposing plant material. Some other types of Slime Mold commonly found in our area are the alien-looking Cedar-Apple Rust that erupts into orange slimy tentacles each summer. Another found appearing on our mulch in moist summer conditions is aptly named the Dog Vomit Slime Mold and the Witches’ Butter Mold.

Creepy Plants!

Whether on the stage, in literature, in our garden, or in our imaginations, man-eating plants will always be a fixture within humanity's lore! Add a bit of spookiness to your world year-round with the help of NatureHills.com!

Want some scary things to go and see next time you are abroad? Check out the Poison Garden at England’s Alnwick Garden is filled with plants that can kill!

Spooky Planting!

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Frequently Asked Questions

Are man eating plants real?

Man-eating plants are fictional, though carnivorous plants like Venus Fly Traps and Pitcher Plants do exist and capture small prey like insects, spiders, and occasionally tiny frogs. These fascinating plants evolved to digest small creatures for nutrients in nutrient-poor soils, but their traps typically measure only 1-2 inches across. Venus Fly Traps (hardy in zones 8-10) and Pitcher Plants make excellent conversation pieces for your garden or indoor collection, requiring consistently moist, acidic soil and bright indirect light.

What soil mix is best for growing carnivorous plants like Venus flytraps?

Venus flytraps and most carnivorous plants require nutrient-poor, acidic soil that mimics their native bog conditions. Use a 1:1 mix of sphagnum peat moss and perlite, or substitute sand for perlite if desired. Never use regular potting soil or fertilizer, as these plants have evolved to capture their own nutrients and excess minerals will harm them. Plant in plastic pots with drainage holes and keep the soil consistently moist with distilled or rainwater only.

Is there a plant that eats humans?

No, there are no plants that can eat humans. While carnivorous plants like Venus Fly Traps and Pitcher Plants do exist, they only consume insects, small invertebrates, and occasionally tiny frogs or lizards that get trapped in their specialized leaves. These fascinating plants evolved to supplement poor soil nutrition by digesting small prey, with the largest carnivorous plants having traps only 4-6 inches across. You can safely grow carnivorous plants like Venus Fly Traps (zones 8-10) or Pitcher Plants as unique houseplants without any danger to yourself or pets.

Do man eating plants exist?

Man-eating plants are purely fictional, though carnivorous plants like Venus Fly Traps and Pitcher Plants do exist and capture small insects, frogs, and lizards. These fascinating plants evolved to supplement poor soil nutrition by digesting tiny prey through specialized trap mechanisms, but they pose no danger to humans. Venus Fly Traps (hardy in zones 6-8) grow only 3-6 inches tall, while most Pitcher Plants reach just 12-24 inches in height. You can safely grow these remarkable carnivorous plants indoors or in bog gardens using distilled water and bright, indirect light.

Are there any carnivorous plants that eat humans?

No, there are no carnivorous plants that can eat humans. Even the largest pitcher plants like Nepenthes rajah only trap small animals such as insects, frogs, and occasionally small rodents. Venus flytraps and other carnivorous plants have evolved specifically to digest insects and other tiny invertebrates to supplement nutrients in poor soils. You can safely grow carnivorous plants like Venus flytraps (zones 8-10) or American pitcher plants (zones 6-9) in your garden without any danger to humans or pets.

Can rafflesia eat humans?

No, rafflesia cannot eat humans despite being the world's largest flower at up to 3 feet across. This parasitic plant from Southeast Asian rainforests produces no leaves, stems, or roots and survives by drawing nutrients from host vines. While rafflesia emits a rotting flesh odor to attract carrion flies for pollination, it has no carnivorous capabilities whatsoever. If you're interested in actual carnivorous plants for your garden, consider hardy Venus flytraps (zones 6-8) or American pitcher plants that safely catch only insects.

How often should I water carnivorous plants using the tray method?

Keep the water tray filled to about 1/4 to 1/2 inch deep at all times, refilling as needed when the water level drops. Most carnivorous plants require consistently moist soil and should never dry out completely, so check the tray every 2-3 days during active growing season and weekly during dormancy. Use only distilled water, rainwater, or reverse osmosis water since these plants are extremely sensitive to minerals and chemicals found in tap water. Monitor the soil surface daily and maintain the tray water level to ensure your plants stay properly hydrated year-round.

Can carnivorous plants eat humans?

No, carnivorous plants cannot eat humans. Even the largest pitcher plants (Nepenthes species) only trap insects, small frogs, and occasionally small rodents up to mouse size. Venus flytraps have traps that measure just 0.5-1.5 inches across and can only digest tiny prey like flies and spiders. These fascinating plants make excellent houseplants or outdoor specimens in zones 3-9 depending on species, so you can safely grow them without any fear of becoming their next meal.

What type of water is safe for carnivorous plants, and why avoid tap water?

Use distilled water, rainwater, or reverse osmosis water for carnivorous plants, as these contain fewer than 50 parts per million of dissolved minerals. Tap water typically contains chlorine, fluoride, and high mineral content that can burn sensitive roots and kill beneficial soil microorganisms over time. Most municipal water systems add chemicals and have mineral levels between 150-400 ppm, which is toxic to bog plants like Venus flytraps and pitcher plants. Water from the bottom using the tray method, keeping soil consistently moist but not waterlogged.

Can a carnivorous plant eat a human?

No, carnivorous plants cannot eat humans. Even the largest pitcher plants (Nepenthes rajah) only trap insects, small frogs, and occasionally small mammals like rodents. Venus flytraps and other carnivorous plants have evolved to digest tiny prey for nitrogen supplementation in nutrient-poor soils, with trap sizes typically measuring just 1-2 inches maximum. These fascinating plants make excellent houseplants or bog garden additions in zones 3-9, depending on the species, and pose no danger to humans or pets.

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