Sooner or later, every gardener has to get to grips with weeds. Sometimes called ‘plants in the wrong place’, weeds tend to turn up just where we don’t want them in our gardens. They compete with plants for water and nutrients, and can quickly spread and take over in a garden. While it’s never going to be possible to eradicate weeds, there are steps you can take to get them under control, and the first step is to understand how weeds grow.