Companion Planting

This refers to planting two crops at the same time and in the same space to maximize productivity from the garden. Often this would be one crop (for instance radishes) which germinates and matures quickly, along with another (carrots), that is slow to germinate and mature. The radishes will remind the gardeners that something else is planted there. By the time the carrots have germinated and need more growing room the radishes will have been harvested.