The claim “Put a spoon on a houseplant and watch it start to thrive” is misleading on its own. A metal spoon placed in or on the soil does not have any proven effect on plant growth.
Sometimes similar tips refer to adding a spoonful of a household ingredient, not the spoon itself. Here are some common examples:
- Compost or worm castings: A spoonful can provide nutrients and benefit many plants.
- Coffee grounds: Can be useful for some plants in small amounts, but too much may compact the soil or alter its pH.
- Epsom salt: Only helps if a plant has a magnesium deficiency; routine use isn’t recommended.
- Baking soda or sugar: There’s little scientific evidence that they improve the health of most houseplants and they can sometimes do more harm than good.
The most reliable ways to help houseplants thrive are:
- Water only when the soil needs it.
- Provide the right amount of light for the specific plant.
- Use a well-draining potting mix.
- Fertilize appropriately during the growing season.
- Check regularly for pests and diseases.
If you saw this tip in a video or article, let me know what was supposed to be on the spoon (for example, cinnamon, coffee grounds, rice water, Epsom salt, or something else), and I can explain whether that particular trick has any scientific basis.
