Why do weeds grow almost anywhere so easily, but growing food crop requires so much care and is so difficult?

Question

Why do weeds grow almost anywhere so easily, but growing food crop requires so much care and is so difficult?

In: 47

Answer 1

The simple answer is energy. There are barely any calories in weed since it requires little sustenance to grow. Hence why it can grow almost anywhere as long as there is a little bit of water around.

Crops need to be calorie-rich, which means more nourishment needed besides water. And because they have more calories, they’re more attractive to microbes that cause diseases, requiring further care.