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What Plant Produces the Most Oxygen?
Which plants really make the most oxygen, from ocean plankton to big trees to houseplants, plus the truth about snake plants at night and NASA.
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Browse by topicHouseplant CareWatering, soil, pots, pests and the everyday routine that keeps indoor plants going.Light and GrowingHow much light plants need indoors, and how to give them more of it.Plant FactsStraight answers to the questions people ask about plants, with the numbers behind them.
Latest guides
4 guidesWhat Plant Produces the Most Oxygen?
Which plants really make the most oxygen, from ocean plankton to big trees to houseplants, plus the truth about snake plants at night and NASA.
The Most Expensive Houseplants Ever Sold
The record prices paid for rare variegated aroids and prized orchids, why variegation costs so much, why prices crashed and how to buy safely.
How to Set Up Indoor Grow Lights for Plants
When a houseplant needs a grow light, how to pick an LED, how high to hang it and how many hours to run it, with PPFD and DLI targets.
A Practical Houseplant Care Guide
How to give indoor plants the right light, water, potting mix, humidity and food, catch pests early and keep toxic plants away from pets.