How Do Plants Know When to Grow?

Plants use light like a timer. When days get longer, they know it's time to grow. When days get shorter, they know it's time to rest. It’s like having a super smart light-sensitive clock inside them!

Imagine you have a lamp that turns on and off every day. Your plant sees this lamp, when the light is on for longer hours, it knows spring is coming, so it starts growing. When the light goes away faster, like in winter, it stops growing and gets ready to sleep.

Inside the plant are tiny special cells called photoreceptors that feel the light. These receptors send messages to the rest of the plant: Grow! or Rest!

Even without a clock, plants use the sun’s daily rhythm like magic, it’s one of nature’s most amazing tricks!