Houseplants are supposed to be good for the environment. They clean the air, boost your mood, and bring a little bit of nature indoors. But there's a side of the houseplant industry that nobody talks about: the massive environmental cost of plants that don't survive.
Before that little pot of Calathea reaches your living room, it's already been on quite a journey. Most houseplants sold in Europe are grown in commercial greenhouses in the Netherlands — the world's largest exporter of ornamental plants. These greenhouses are heated with natural gas, often for months or even years depending on the species and size.
Research from Wageningen University has shown that a single greenhouse-grown potted plant can carry an embedded carbon footprint of 1 to 5 kg of CO2, depending on the species, the growing time, and the heating required. That includes the energy for heating and lighting, the production of peat-based growing media, the plastic pots, and the transportation across the country — or across the continent.
And that's just the growing. Add in refrigerated transport, retail display, and consumer travel to pick it up, and the number only goes up.
Here's the uncomfortable truth: a huge number of the plants we buy don't make it. Consumer surveys in the UK (often conducted by organizations like the Horticultural Trades Association and brands like Patch Plants) consistently find that around 30 to 50 percent of houseplants die within the first year of purchase. The rate is even higher for impulse buys at supermarkets, where plants are often already stressed from poor display conditions.
Think about that for a moment. If billions of houseplants are sold globally each year, and roughly a third to half of them die — that's a staggering amount of embedded CO2 that was spent growing, shipping, and packaging plants that ended up in the bin.
When a houseplant dies, most people throw it in the general waste. Pot, soil, plant, and all. Very few people compost their dead houseplants, and even fewer separate the plastic pot for recycling (if it's even accepted by local recycling programs).
In landfill, the organic matter — the plant itself and the peat-based soil — decomposes anaerobically (without oxygen). This process produces methane, a greenhouse gas that is approximately 80 times more potent than CO2 over a 20-year period, according to the IPCC. So a dead houseplant doesn't just represent wasted CO2 from production — it actively contributes additional greenhouse gas emissions in its afterlife.
There's another layer to this that's worth mentioning: peat. Most commercial houseplants are grown in peat-based substrates. Peat is harvested from peatlands — ancient ecosystems that have been storing carbon for thousands of years. When peat is extracted and used in horticulture, that stored carbon is gradually released as CO2.
Peatlands cover just 3% of the Earth's land surface but store roughly twice as much carbon as all the world's forests combined. The destruction of peatlands for horticulture (and agriculture) is a recognized contributor to climate change, which is why several European countries are moving to ban peat in horticultural products.
Then there's the plastic. Houseplants come in plastic nursery pots, wrapped in plastic sleeves, transported in plastic trays. The Horticultural Trades Association in the UK estimated that the sector uses over 500 million plastic pots per year in the UK alone. Most of these are made from polypropylene, which is technically recyclable but rarely accepted by curbside collection programs. So the vast majority end up in landfill or incineration.
The most impactful thing any plant owner can do is simple: keep your plants alive. Every plant that survives is one less that needs to be replaced. That means less greenhouse heating, less transportation, less plastic, less methane from landfill.
But "just keep them alive" is easier said than done — which is exactly why we built Florio. By making plant care engaging and habit-forming through gamification, smart reminders, and progress tracking, we help people stick with their plants for the long run.
It's a small intervention with a potentially large impact. If we can help even a fraction of plant owners keep their plants alive longer, the cumulative reduction in CO2 and waste is significant.
We're not saying houseplants are bad — far from it. Plants in homes provide real benefits for air quality, mental health, and wellbeing. The problem isn't buying plants; it's buying plants and letting them die because we didn't know how to care for them.
The solution isn't fewer plants. It's better tools to help people succeed with the plants they already have. That's what Florio is all about.
Want to learn more about what we're building? Read why we started Florio or visit our about page.