These plants, which are sold in most supermarkets and garden centres, see their value increase after a naturally occurring variation. How can you spot it?
Many people don’t know some common houseplants can be extremely valuable as these variations are often mistaken for a disease.
Some shops even reduce the plant’s price after it happens.
Britons could make thousands by selling just a small part of the plant, a single leaf of the stem.
These plants can be found in shops such as Lidl and B&Q.
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Pink Princess Philodendron
Very similar to the White Knight and White Princess, the Pink Princess Philodendronbut has pink variegation instead.
It can take a while to show, but if people spot the pink stains on the leaves, they could be selling it for thousands.
Some of these plants are currently selling on Etsy for £2,228 or £200 for a single leaf.
This may be one of the rarest houseplants but is still present in many British homes.
The Monstera Obliqua’s leaves could be easily mistaken for pest damage.
However, a single leaf of the most sought-after plant is selling on Etsy for £1,590 and on eBay for £1,250.
Over on Facebook Marketplace, a small plant goes for £1,000.
Additional reporting Lea Dzifa Seeberg