Some of the plants in your garden can grow all over the place if not controlled. When you want to check and see if your pumpkin vines or melon, and even cucumbers have lots of blossoms and fruits on them, you have to walk all over the garden to see that. Also, when the fruit rests on the soil they can rot or be damaged. It is best to support your fruit and control your vines.
The video below shows 4 easy to put together trellises to control your vines and support you fruit or vegetables.