Most plants sold as houseplants are tropical or subtropical species. Many grow wild in rainforests as understory plants, living in the shade beneath taller trees. That background explains why they cope with the dimmer light inside a home, and why warm indoor temperatures suit them.
It also explains their limits. A shade-adapted plant is not ready for strong direct sun, so it can scorch if moved suddenly into it. Rainforest air is humid: tropical plants come from places with roughly 70–90 % humidity, while many homes sit far lower. And even the brightest spot indoors gives only a fraction of the light outdoors.
Not every popular plant is from a rainforest. Cacti and many succulents come from dry places and want far more light and far less water. So the first question to ask about any new plant is simple: where does it grow wild? The species pages in the wiki give the native range and habitat, and that is often the best clue to its care.
If you grow on a warm balcony, the main thing to watch is sun strength, because shade-adapted houseplants do best in part or full shade outdoors.
Key points
- Many houseplants are rainforest understory plants adapted to shade.
- Cacti and succulents come from dry, bright places and need different care.
- A plant's native habitat is your best first clue to its care.
Try this
Look up one of your plants in the wiki and note its native habitat. Is it from forest shade, open sun or somewhere dry?
Check yourself
Read more in the reference
Sources
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