A plant in a pot cannot reach out for rain or move to a sunny spot. If you have a plant at home, you are its helper.
Key idea
A potted plant needs light, the right amount of water (not too much), a pot with holes for drainage, and room to grow.
Why it works
Roots need air as well as water. Tiny spaces in the soil hold the air. If the soil stays soggy, water fills those spaces, and the roots can rot. Holes in the bottom of the pot let extra water drain out.
Worked example: Let's think it through
When should you water most potted plants?
- Poke a finger into the soil.
- If the top feels dry, it is time to water.
- If it still feels wet, wait a day or two.
Answer: When the top of the soil feels dry.
Common mistake
Many children (and grown-ups!) think more water is always better. Too much water can drown the roots. Most potted plants like the soil to dry a little between waterings.
For the grown-up. Different plants want different amounts of water: a cactus wants much less than a fern. The plant's tag or a garden center can tell you. This builds on What Plants Need.