98 Fun Facts About Houseplant

Where is Monstera deliciosa native to?

Southern Mexico to Panama is its natural range, where it climbs rainforest trees to around 20 metres; in a living room the same vine usually stops at about two.

What does the specific epithet 'deliciosa' in Monstera deliciosa refer to?

Its edible fruit earned the species the name deliciosa: when fully ripe it tastes like a mix of pineapple and banana, but unripe fruit is full of needle-like calcium oxalate crystals.

Golden pothos is native to which island?

Mo'orea in French Polynesia, one of the Society Islands, is its native home; from that single island it has become one of the most popular houseplants in North America.

Why is pothos nicknamed 'devil's ivy'?

It stays green even when kept in the dark and is almost impossible to kill, hence 'devil's ivy'; the one thing it refuses to do in a pot is flower.

Where does the spider plant, Chlorophytum comosum, come from?

South Africa's coasts are among its homes, part of a range that runs north through tropical Africa; its arching stems carry plantlets that droop to the soil and root where they land.

Dracaena trifasciata, or mother-in-law's tongue, was known under what genus name until 2017?

Sansevieria was its genus until 2017, when it was reclassified as a Dracaena; it comes from tropical Africa and tolerates such low light that it suits the dimmest corner of a room.

When does Dracaena trifasciata open its stomata to exchange gases?

Only at night: it uses crassulacean acid metabolism, a drought adaptation shared with many succulents, keeping stomata shut by day to save water and opening them after dark to take in carbon dioxide.

Which houseplant's tough leaf fibres earned it the old name 'bowstring hemp'?

Snake plant leaves yield a strong fibre once used for bowstrings; outdoors it is less welcome, and it is regarded as an environmental weed in parts of Australia.

Is the peace lily a true lily?

No, it is an aroid in the family Araceae, a cousin of the philodendrons; true lilies can cause kidney failure in cats, while its calcium oxalate crystals burn the mouth without that danger.

The white 'petal' of a peace lily is actually what?

A spathe, a modified leaf, wraps the spadix, the cream-coloured spike that carries the plant's real flowers.

Ficus lyrata's common name comes from its leaves resembling which object?

A fiddle is the shape behind 'fiddle-leaf fig', whose violin-like leaves can reach 45 cm; the plant sold for living rooms grows into a tree of nine metres or more outdoors.

Ficus lyrata, a 2010s houseplant craze, grows wild in which region's rainforests?

West Africa is home to Ficus lyrata, a rainforest tree there; grown indoors it stays a fraction of that size and rarely flowers or fruits.

In Meghalaya, India, the roots of Ficus elastica are trained into what?

Living bridges are grown by Khasi and Jaintia villagers, who guide the tree's aerial roots across streams until they knit into spans strong enough to walk on; some have stood for centuries.

Aloe vera originates in which region?

The Arabian Peninsula is where Aloe vera originated; carried around the world for its soothing gel, it now grows wild from North Africa to the Canary Islands.

The ZZ plant stores water in what kind of underground structure?

A potato-like rhizome beneath the soil stores water, letting the ZZ plant ride out months of drought in its native eastern Africa; the fleshy leaf stalks store more.

Lithops, tiny desert succulents grown as novelty houseplants, are camouflaged to look like what?

Pebbles are the disguise: when the botanist William Burchell found the first one in 1811, he took it for an oddly shaped brown stone until he looked closer.

The name Philodendron comes from Greek words meaning what?

Love tree, from Greek philo (love) and dendron (tree), describes how many species climb trees as hemiepiphytes; the genus is the second-largest in the arum family.

What is the largest genus in the arum family, ahead of Philodendron?

Anthurium is the arum family's largest genus, native to the tropical Americas, where many species perch on trees as epiphytes; the waxy red flamingo flower is among the most widely grown.

African violets are native to which country?

Tanzania's Usambara Mountains are where Baron Walter von Saint Paul-Illaire collected the seeds he sent home in 1892; the genus was named Saintpaulia after him, and it is unrelated to true violets.

The orchid genus Phalaenopsis is named for its resemblance to what?

A moth is the likeness: Carl Ludwig Blume built the name in 1825 from the Greek for 'moth' and 'appearance', as the flowers are said to resemble moths in flight; in the wild the plants perch on trees.

Which US city gives its name to a classic houseplant fern, an arching form of the tropical sword fern?

Boston is where the arching form is said to have been spotted in 1894, in a shipment of ordinary sword ferns sent from Philadelphia; the wild species holds its fronds stiffly upright.

Which nickname does the jade plant, Crassula ovata, share with the Malabar chestnut, Pachira aquatica?

Money tree is a nickname both the jade plant and Pachira aquatica carry, each sold as a bringer of wealth; Crassula ovata is a succulent in the stonecrop family, while Pachira is a mallow relative.

Which hardy houseplant appears in the title of a 1936 George Orwell novel about rejecting middle-class respectability?

Aspidistra is the plant in Keep the Aspidistra Flying, where Orwell makes the neglect-proof parlour favourite a symbol of the stuffy middle-class life his hero Gordon Comstock tries to reject.

Pilea peperomioides is harmless to touch, unlike which best-known relatives?

Nettles are its relatives in the family Urticaceae, though its smooth leaves carry no stinging hairs; it grows so easily from cuttings that owners hand them to friends, hence the name friendship plant.

String of pearls was long classed with the weed groundsel; which plants are its relatives?

Daisies are its relatives in the family Asteraceae; its pea-shaped leaves cut water loss by exposing as little surface as possible, and a translucent 'window' on each lets light inside.

The poinsettia takes its English name from whom?

The first US minister to Mexico, Joel Roberts Poinsett, sent the plant north in the 1820s; the Aztecs had cultivated it, calling it cuetlaxochitl.

How dangerous are poinsettias to pets and children?

Mild upset at worst: a review of more than 20,000 poison-centre cases found no deaths; a nibble may bring a brief stomach upset or a rash from the sap, and the ASPCA calls the plant's toxicity over-rated.

Aglaonema, a shade-tolerant houseplant from the forests of tropical Asia, is commonly called what?

Chinese evergreen is the common name for Aglaonema, which grows in the shade of humid tropical forests; that upbringing is why it tolerates the low light of an ordinary room.

Air plants, Tillandsia, absorb water through what specialized structures on their leaves?

Trichomes, tiny silvery hairs coating the leaves, soak up water and nutrients from rain, mist and fog; the wiry roots do little more than hold the plant to its perch.

Which houseplant is nicknamed 'dumb cane' because chewing its stem can leave a person temporarily unable to speak?

Dieffenbachia cells are armed with needle-like calcium oxalate crystals that inflame the tongue and throat when chewed; the genus honours Joseph Dieffenbach, a head gardener in Vienna.

How does English ivy, Hedera helix, cling to walls and trees?

Aerial rootlets with matted pads sprout along the stems and cling so strongly to bark or stone that the vine can climb a tall tree; only its young, non-flowering shoots climb, while the adult ones turn shrubby.

The bird of paradise flower honors which British queen in its botanical name?

Charlotte of Mecklenburg-Strelitz, wife of George III, is the queen in Strelitzia reginae: Joseph Banks took the genus name from her German duchy and added reginae, 'of the queen'.

Christmas cacti (Schlumbergera) grow wild on trees in the humid coastal mountains of which country?

Brazil's coastal rainforests are home to Schlumbergera, which perches on trees and shady rocks, a world away from the deserts most cacti call home.

In its Southern Hemisphere homeland, the Christmas cactus is named for the month it really blooms; what is it called there?

May flower is the local name: south of the equator, the shortening days that set its buds arrive in autumn, so it blooms around May instead of December.

The prayer plant, Maranta leuconeura, gets its name from what habit?

Its leaves fold upright at night, like hands pressed in prayer, then lie flat again by day; the movement, called nyctinasty, is driven by a swollen joint at the base of each leaf.

Which country is the native home of the common cast-iron plant?

Japan is the native home of this plant; it shrugs off dim light and missed waterings, the toughness behind its cast-iron name.

Which houseplant, often sold simply as 'ficus', is the official tree of Bangkok?

Weeping fig is the tree symbol of Thailand's capital; in a pot it sulks at any change of light, dropping leaves when moved and then growing new ones suited to the new spot.

Which houseplant family includes both Spanish moss and the pineapple?

Bromeliads are almost all from the Americas, with a single African exception; 'tank' bromeliads hold a pool of rainwater in the cup formed by their overlapping leaf bases.

A houseplant that grows long, weak, pale stems reaching for a window is showing what?

Etiolation is the stretching response to low light: longer internodes, smaller leaves and little chlorophyll raise the odds of reaching light; seedlings grown in darkness show the extreme form.

Root rot is more common in indoor plants than outdoor ones mainly because of what?

Overwatering and poor drainage leave potted roots sitting in airless, waterlogged soil; many cases are caused by Pythium and Phytophthora water moulds, which thrive in saturated soil.

Which houseplant pest hides under a waxy brown shell and barely moves as an adult?

Scale insects spend adulthood fixed in place beneath a waxy or armoured shell, sucking sap; the females of many species never move again once settled, so they are often mistaken for bumps on the stem.

The Wardian case, forerunner of the terrarium, began when a fern sprouted inside what?

A bottle holding a moth chrysalis sprouted a fern in 1829, showing Nathaniel Ward that sealed glass shielded plants from London's coal smoke; his cases later carried tea plants from China to India.

The 1989 NASA Clean Air Study tested houseplants against which pollutants?

Benzene, formaldehyde and trichloroethylene were the three pollutants the study, led by B. C. Wolverton, tracked in sealed chambers; designed with space stations in mind, its findings are often overstated for ordinary homes.

Which Florida city calls itself the 'Indoor Foliage Capital of the World'?

Apopka, just northwest of Orlando, earned the 'Indoor Foliage Capital of the World' tag from the many greenhouse nurseries that surround it.

The sago palm, a houseplant whose kind flourished in the age of dinosaurs, is not a palm at all but what?

A cycad, one of an ancient group of cone-bearing plants that only look like palms; it is also among the most dangerous houseplants for pets, which risk liver failure if they chew it.

By a famous if doubted story, how did the first Cattleya orchids reach England in 1818?

As packing material for other plants, says the legend; in the plainer account the collector William Swainson sent the orchid to William Cattley on purpose, and John Lindley named the genus after the man who flowered it.

Which town in the Netherlands hosts the world's largest flower and plant auction?

Aalsmeer hosts the Royal FloraHolland auction, the world's largest as of 2025, where flowers and potted plants sell against a clock whose price starts high and falls until a buyer stops it.

Sir Hugh Plat's 1608 guide to growing plants was reissued after his death under which biblical title?

Garden of Eden was the new title a self-proclaimed kinsman gave Plat's Floraes Paradise when he reissued it in 1653; among its advice was how to raise plants indoors.

The word 'orchid' comes from the ancient Greek for which body part, after the shape of the tubers?

Testicle is the literal meaning of the Greek orkhis, a nod to the paired tubers of some species, and Middle English speakers bluntly called the plants bollockwort.

Which baking flavoring comes from the seed pods of an orchid that the Totonac people were among the first to grow?

Vanilla is the world's second-most expensive spice by weight after saffron, because raising the orchid's seed pods is so labor-intensive.

The Venus flytrap is native only to the coastal wetlands of which pair of US states?

North and South Carolina hold every native Venus flytrap, and the trap shuts only after two touches of its trigger hairs, a check that stops raindrops and dust from springing it.

Bouquet and pot lilies of the genus Lilium can cause fatal kidney failure in which common household pet?

Cats can suffer acute kidney failure from true lilies, yet the exact mechanism of the poisoning is undetermined.

Marimo 'moss balls', sold as low-care green pets for jars of water, are really colonies of what?

Algae, not moss, make up a marimo: filaments of one green species grow into velvety spheres on lake floors, and Japan has protected them since the 1920s.

The neon-colored 'moon cactus' must be grafted onto another cactus to survive because it lacks what?

Chlorophyll is missing from these mutant seedlings, which exposes their red, orange or yellow pigments and leaves the green rootstock below to make all their food.

During the 1970s houseplant boom, ferns were typically hung in planters knotted by which craft?

Macramé hanging planters suited an indoor-jungle look tied to the decade's environmentalist and hippie movements, just as garden centers were becoming ubiquitous.

In the musical Little Shop of Horrors, what name does Seymour give his blood-drinking potted plant?

Audrey II is named for the co-worker Seymour secretly loves, and the plant's pod first opens when he pricks a finger on a rose thorn and draws blood.

Coir, a common peat substitute in potting mixes, is a fiber taken from the husk of which fruit?

Coconut husk fiber holds water much as peat does, and its use in potting mixes has grown out of concern over the sustainability of digging up peatlands.

Flaming Katy and the crown of thorns, two flowering windowsill succulents, both grow wild on which island?

Madagascar is home to both, and flaming Katy grows there on relatively cool mountain plateaus, far from the hot windowsills where it is usually kept.

Lucky bamboo, which is not a bamboo at all, is a species of Dracaena native to which region?

Central Africa is the home of the plant, whose fleshy stem sets it apart from real bamboo and whose trade names wrongly hint at China or Belgium.

The three numbers on a fertilizer label give its nitrogen, phosphorus and which third nutrient, shown as K?

Potassium is the K in the N-P-K code printed on every bag, and by convention the third number states it as the equivalent amount of potassium oxide.

Which volcanic glass, popped by heat into bright white granules, is a staple of houseplant potting mixes?

Perlite is typically formed when obsidian takes on water, and when heated enough it expands hugely into a brilliant white mass of trapped bubbles.

Which tiny dark flies hovering around a houseplant are a classic sign of constantly wet potting soil?

Fungus gnats lay a couple of hundred eggs in the moist top layer of soil, where the larvae can feed on roots that have sat in water too long.

The brown dots on the underside of a fern frond are clusters of capsules that release what instead of seeds?

Spores are shed from each brown dot, called a sorus, which in some ferns is shielded while it develops by an umbrella-like flap of tissue.

With the exception of a single species, the cactus family is native only to which part of the world?

The Americas are home to every wild cactus from Patagonia to western Canada, save one Rhipsalis that also turns up across the ocean as far as Sri Lanka.

Which English novelist titled a 1936 book after the aspidistra, his symbol of middle-class stuffiness?

George Orwell paired the plant with the phrase about keeping the flag flying, so the title of Keep the Aspidistra Flying reads as a sarcastic cheer for the middle class.

Which plant hormone builds up on the shaded side of a stem, bending a houseplant toward the window?

Auxin makes the cells on the darker side elongate faster, and synthetic versions of it are what growers apply to cuttings to start new roots.

The kentia palm, a favorite of Victorian parlors, comes from which remote place off Australia's east coast?

Lord Howe Island began exporting the seeds in the 1870s, and Queen Victoria grew the palms in all her homes and asked for them to stand around her coffin.

What name did author Charles Kingsley coin in 1855 for the Victorian craze for collecting ferns?

Pteridomania, meaning fern madness, put fern motifs on everything from christening presents to gravestones, and it is usually considered a British eccentricity.

What term describes houseplant leaves marked with differently colored zones, such as cream streaks on green?

Variegation often marks a chimera, a single plant built from tissues with more than one genotype growing side by side.

What is the name for growing plants without soil, their roots bathed in a mineral nutrient solution?

Hydroponics was promoted from 1929 by Berkeley's William Gericke, who caused a sensation by raising towering tomato vines in his backyard in nutrient solution alone.

The showy red parts of a poinsettia are not flower petals but colored leaves known by what botanical name?

Bracts on a poinsettia change color only after six to eight weeks in a row of darkness lasting at least fourteen hours at a time.

Which unglazed earthenware, used for China's buried warrior army, is the traditional flowerpot material?

Terracotta is not watertight, so an unglazed pot is porous, and burnishing the clay before firing is one old way to make it less so.

Lithops, dwarf succulents grown as windowsill curiosities, avoid being eaten by looking like what?

Small stones are such a convincing disguise that the explorer Burchell found the first one in 1811 only by picking up what he took for a curiously shaped pebble.

Peperomias, the compact 'radiator plants', belong to the same botanical family as which kitchen spice?

Black pepper comes from Piper, the other big genus in the family, while chili peppers are unrelated nightshades that Europeans named for their similar heat.

The sago palm sold as a houseplant is not a palm at all but a member of which ancient plant group?

Cycads are unrelated to palms despite the similar leaves, and the sago is deadly to pets: the ASPCA puts the fatality rate at 50 to 75 percent when one is eaten.

Which botanic garden holds a plant that arrived in 1775 and is considered the world's oldest pot plant?

Kew Gardens keeps the veteran in its Palm House: an Encephalartos that has lived in a container since the year before American independence.

Orchid growers call a baby plantlet that sprouts on a flower spike a 'keiki', a word from which language?

Hawaiian for 'baby' or 'child', the word suits a plantlet that is an exact clone of its mother and sometimes flowers while it is attached to her.

Which 1973 book argued for botanical sentience, citing polygraph experiments pioneered by Cleve Backster?

The Secret Life of Plants and its controversial experiments went on to inspire a 1979 documentary with a soundtrack by Stevie Wonder.

Which conifer, noted by Captain Cook on his second voyage, is sold in pots as a living Christmas tree?

Norfolk Island pine is not a true pine but an Araucaria, and Cook admired its tall, straight trunks as likely masts and yards for sailing ships.

Which sap-sucking houseplant pest coats itself in a white, powdery wax layer for protection?

Mealybugs owe the name to that powdery, meal-like wax, which shields them while they suck a plant's juices and in some species also holds their eggs.

What do American growers call the small daughter plants that sprout at the base of an aloe or agave?

Pups are small, virtually complete daughter plants produced asexually on the mother, so each one that is split off and potted is a copy of its parent.

Which succulent genus includes 'mother of thousands', which grows baby plantlets along its leaf edges?

Kalanchoe daigremontiana drops those plantlets, which can form roots while they are attached to the leaf, and it is also called the alligator plant.

Mimosa pudica droops and closes up within moments of being touched; its species name is Latin for what?

Bashful, or shrinking, describes how the sensitive leaflets close inward and droop when touched or shaken and then reopen a few minutes later.

What are the natural holes and splits that develop in the mature leaves of a Monstera called?

Fenestrations replace the plain, entire leaves of a young plant, and they inspired French, Spanish and Portuguese names that compare the plant to hole-filled cheese or to Adam's ribs.

What do gardeners call coaxing bulbs such as tulips into flower outside their natural growing season?

Forcing has been recorded since 1608, and before greenhouses took over, growers built hotbeds warmed by decomposing manure to bring crops on early.

Which female pharaoh, an early name in houseplant history, had 31 live myrrh trees shipped home from Punt?

Hatshepsut funded the mission after reopening trade routes cut during the Hyksos occupation, and the trees were planted in front of her temple at Deir el-Bahari.

Stapelia, a succulent grown for its big hairy flowers, lures pollinating flies by smelling like what?

Rotting flesh is what the blooms both smell and look like, which draws in blow flies and earned the plants the name carrion flowers.

The 'amaryllis' bulbs sold to flower indoors at Christmas actually belong to which New World genus?

Hippeastrum has worn the amaryllis name for years, yet the true Amaryllis is a different genus from another continent, and some Hippeastrum species even grow perched in trees.

Which word, popularized by biologist E.O. Wilson, names the human pull toward other living things?

Biophilia was first used by Erich Fromm for an attraction to all that is alive and vital, before Wilson's 1984 book argued that the bond is rooted in human biology.

The sprouting green 'fur' on a Chia Pet figurine comes from seeds of a plant in which herb family?

Mint relatives include chia, Salvia hispanica, whose moistened seeds are spread on a grooved clay figurine and sprout within a couple of weeks.

Beaucarnea recurvata, which stores water in a swollen trunk base, is sold under which misleading name?

Ponytail palm is no palm at all: it sits in the asparagus family, far from the true palms, and it is also sold as elephant's foot.

Hoya carnosa, grown for its glossy foliage and sweetly scented flowers, goes by which common name?

Wax plant fits both the glossy leaves and the thick, star-shaped flowers, which look molded from wax or porcelain, hence its other name, porcelain flower.

What are the small cushion-like bumps, unique to cacti, from which their clusters of spines grow?

Areoles mark out cacti as a family distinct from other succulents, and in the prickly pear group they also sprout tiny detachable bristles called glochids.

What is the name for the droplets of liquid a houseplant pushes out of its leaf tips, typically overnight?

Guttation shows up when humidity is high and normal water loss through the leaves is suppressed, so internal liquid is forced out as drops along the edges.

Which 1976 Moog album by Mort Garson was given away with houseplants bought at a Los Angeles shop?

Mother Earth's Plantasia also came free with a Simmons mattress from Sears, and Garson composed its Moog melodies for plants to listen to, inspired by his wife's houseplants.

What is the term for leaves turning yellow because they make too little green pigment, often for lack of iron?

Chlorosis takes its name from the Greek khloros, meaning pale green, and iron-poor soils are a classic cause because the metal is needed to build the pigment.

Which technique lets nurseries mass-produce clones of orchids that rarely sprout from seed?

Tissue culture, also called micropropagation, rapidly multiplies stock from tiny samples, and every plantlet it yields is a clone of the original.

Epiphyllum oxypetalum earned the nickname 'queen of the night' because its flowers do what?

Bloom after dark is the rule for this cactus, whose flowers wilt before dawn, and it is no close relation of the plants usually called night-blooming cereus.