In 1856, a middle-class Victorian household in London kept seventeen potted ferns in the parlor. They died regularly. The family replaced them. This is not a story about Millennials discovering wellness culture. This is a story about humans doing what we’ve always done.
You think the houseplant trend started in 2020, or maybe 2015 when Instagram made everything photogenic. It didn’t. The obsession is cyclical, and right now we’re in the middle of a wave that’s been building since the mid-2010s and exploded during lockdown. But the deeper reason people buy houseplants—and keep buying them even after killing the last batch—has nothing to do with pandemics or social media. It has to do with the fact that humans are wired to seek out living things.
We’re hardwired for this
Here’s the baseline: humans have what psychologists call biophilia, an innate preference for natural elements. It’s not cultural. It’s not learned. You put a person in a room with a plant versus a room without one, and cortisol levels measurably drop. This was documented in the 1980s by researchers like Roger Ulrich, who found that hospital patients recovered faster when they had a view of trees instead of a brick wall.
The short version: we need green things around us. Not as decor. As biology.
Indoor plants meet that need in a world where most of us spend the majority of our time indoors. They don’t need to purify the air—the research on that is weak at best. They just need to exist, and that’s enough. The rest of what we tell ourselves about why people buy houseplants is justification after the fact.
The air-purification myth (and why it won’t die)
The story everyone cites goes like this: NASA proved houseplants clean the air. They did a study. Now your pothos is removing toxins from your living room.
Here’s what actually happened. In 1989, NASA tested plants in sealed chambers—0.7 cubic meters, about the size of a large trunk—with continuous airflow pumping volatile organic compounds through the system. In that controlled setup, yes, certain plants removed measurable amounts of benzene and formaldehyde.
Your apartment is not a sealed 0.7-cubic-meter trunk. You have windows, doors, HVAC systems, off-gassing furniture, and about a thousand times more air volume. The conditions that made the NASA study work don’t translate to inhabited spaces. You’d need somewhere between dozens and hundreds of plants per room to replicate the effect, and even then the impact would be negligible compared to just opening a window.
The myth persists because it gives people permission to buy plants for a “practical” reason. But the real reason—biophilia, the need for something alive in your space—doesn’t need justification. The science is already there. We just prefer a story about air quality because it sounds less sentimental.
The Victorians did this first
The Victorian era had a full-blown houseplant obsession. Ferns. Palms. Exotic imports from colonial expeditions. If you had money, you built a conservatory. If you didn’t, you crammed plants into your parlor and hoped they survived the coal-smoke air.
Then it faded. Mid-20th century, outdoor culture took over. Lawns. Suburbia. Low-maintenance living. Houseplants became something your grandmother kept on a windowsill, not something you centered your identity around.
The cycle turned again in the 1970s, briefly—macramé plant hangers, spider plants everywhere—then faded. And then, around 2015, it came back. This time it stuck.
The inflection point: 2015–2020
What changed? Two things happened at once.
First, Instagram normalized plant collecting as an aesthetic practice. You could photograph a Monstera deliciosa and get the same social feedback as photographing your vacation or your outfit. Plants became content. And because they didn’t move or talk back, they were easier content than pets.
Second, the generation coming of age in the 2010s was renting, not owning. Millennials and Gen Z couldn’t buy homes, couldn’t paint walls, often couldn’t even hang art without losing a security deposit. But they could buy a plant. Plants became the one piece of living personalization you could take with you when the lease ended.
By the late 2010s, the U.S. indoor plant market had grown substantially, with retail sales data showing sustained increases in nursery and garden supply purchases. Houseplant ownership surged in the early 2020s. The pandemic turbocharged it—everyone was home, everyone needed something to care for, and plants were cheaper and quieter than puppies.
The houseplant trend wasn’t invented by lockdown. Lockdown just made it impossible to ignore.
What we’re actually buying (and why renters lead the wave)
You’re not buying a plant. You’re buying a version of yourself who successfully keeps a plant alive.
This is the thing most articles miss. The appeal isn’t the plant. It’s the identity. “Plant parent” is a real self-descriptor now, and it signals competence, care, a certain kind of intentional living. It’s the same reason people buy running shoes and then don’t run—the object represents the aspiration.
But unlike running shoes, plants give you a daily feedback loop. You water them. They grow. Or they don’t, and you adjust. The ritual matters more than the outcome. Plant care apps like Planta and Greg have gamified this, turning watering schedules into achievement streaks. It’s a Fitbit for your fiddle-leaf fig.
For renters especially, plants are control in a world that denies it. You can’t travel as easily—budgets are tight, time off is scarce. You can’t renovate—the lease forbids it. You can’t build equity or meaningfully alter your space. Plants become the substitute for mobility, permanence, and the kind of growth you can’t access elsewhere. You can’t expand your square footage, but you can propagate a pothos and suddenly you have twelve plants instead of one. That agency—creating life, shaping your space—satisfies something the economy has made inaccessible.
Houseplants aren’t just decor. They’re what you buy when every other form of ownership or transformation is out of reach.
The rescue narrative (or: why failure doesn’t stop us)
Here’s the uncomfortable truth: a significant share of newly purchased houseplants don’t survive their first six months. People overwater them, underwater them, put them in corners with no light, or just forget they exist.
And then they buy another one.
This should kill the trend. It doesn’t. If anything, it fuels it.
There’s a whole subculture of people who buy “rescue plants”—the clearance-rack survivors at Home Depot, half-dead and marked down to a few dollars. The appeal is reviving them. Bringing something struggling back to health gives you a hit of accomplishment that a thriving plant from day one doesn’t provide. You earned that new leaf.
And if the plant dies anyway? Low stakes. It’s not a pet. You’re not a monster for letting a succulent dry out. You just try again. The forgiveness is baked in, and that’s liberating. Why people buy houseplants even after killing the last batch isn’t a flaw in the trend—it’s the whole point. The failure is part of the charm. more on why do we procrastinate? the science behind delay digs into a similar paradox: we’re drawn to things we’re bad at because the gap between aspiration and reality keeps us engaged.
The collector economy
Once the trend went mainstream, it stratified.
Casual buyers stick to pothos, snake plants, succulents—the stuff that survives neglect. But a whole collector subculture emerged around rare and variegated plants. A Monstera deliciosa with white variegation (Thai Constellation, Albo) can sell for hundreds or thousands of dollars. The market for rare specimens exploded between 2019 and 2022, with industry tracking showing dramatic growth in premium houseplant segments.
Why? Variegation is a genetic mutation. You can’t reliably breed it. Every plant is unique, which makes it closer to art collecting than gardening. Scarcity, social proof, and visible expense all feed into it. You’re not just showing off a plant. You’re showing off that you could afford that plant.
The comparison to more on why do we gift flowers (even though nobody knows what they mean) is useful here: both are about using living things to signal care, taste, and investment. But flowers die in a week. A rare Monstera is a long-term flex.
The market has cooled slightly post-2022, but it hasn’t collapsed. It’s normalized. Houseplants aren’t a fad anymore. They’re a category.
Why this isn’t going anywhere
Trends fade when the need they’re filling gets met some other way. But the need houseplants fill—biophilia, the desire to nurture, the need for control in a rented life—those aren’t getting solved. If anything, they’re intensifying. Remote work made the home the center of life for millions of people. That’s not reversing.
The difference between a fad and a cycle is whether the underlying conditions persist. Houseplants had a moment in the 1850s because industrialization made people crave nature. They had a moment in the 1970s because suburbs felt sterile. They’re having a moment now because urban renters are isolated, indoors, and looking for something alive to care for that they can actually afford to own.
The Victorians didn’t know they were part of a cycle. Neither do we. But the pattern is there. Humans need green things. When we can’t go outside, we bring the outside in. It’s not complicated.
The plant on your windowsill isn’t trending. It’s just the latest version of something we’ve been doing for centuries.