● Chemically Induced Colors: Rare-looking plants, like the “Pink Congo” Philodendron, are often injected with gases or dyes to temporarily change leaf color, which reverts to green after a few months.

● The Illusion of Maturity: Many “bushy” plants are actually 20 to 30 unrooted cuttings stuck into a single pot, which often shrivel without the high humidity of a greenhouse.

● Toxic Leaf Shine: Retailers apply mineral oil-based polishes to create a mirror-like shine, which clogs the plant’s pores (stomata) and inhibits breathing and photosynthesis.