I used to think that if I poured water on the grass compost heap in the back yard then covered it with more grass, 10 minutes later there would be cotton balls under the fresh grass. I recall doing this once and having it work - or maybe this was a dream.
A childhood belief about plants

others believed things like this
- I used to think that dandilions were marshmallows on grass— Vernon D'Souza
- I use to think mountains were dead dinosaurs and grass grew over it.— Tara
- When I was a kid I thought praying mantises were made out of grass— Landon
- I thought hills were dragons sleeping under the grassAnon
- That eating grass was a sure fire way to gain superhuman powers.— Brendan
- I used to believe that mushrooms in the grass grew if it was sunny and rained at the same time.— Ryan