If you wish to grow a vegetable garden in a raised bed it is  usually made from wood, concrete  blocks, rock or other kinds of materials that are then packed with earth. Depending on your needs they can be anywhere from 6″ to waist high above the ground. Common motives for building a raised bed is for  more convenient accessibility  for people who find the bending actions, so normal to  conventional gardening,  hard or not  possible to perform.

It’s essential to consider your building materials with care since timber, for example, that has been treated might allow toxic substances to seep into the land and which winds up in the vegetables themselves. It’s better to use hardwood or rocks.

You must bear in mind how flat your yard is as well. A slanting area is more challenging to work on than a flat one and if it’s very steep you may get soil erosion after torrential rains. One method to help deal with this is to position the beds across the slope.

In addition, if your garden is very breezy you might have to put up windbreaks. Make sure they’re permeable so the wind can get through, if not they’re going to collapse or generate turbulence and you’ll have to begin again. They can be man made like a fence or a living barrier such as a hedge. The latter is inclined to be more attractive but will take time to grow and will entail work to keep it in good physical shape and looking good.

The most common form for a raised bed vegetable garden is a simple rectangle although occasionally they may be circular with a piece removed so the centre can be reached more easily. These are called keyhole gardens and are especially good in regions where there’s a water shortage. In such conditions a smokestack type structure may be built in the center and filled up with grasses and twigs. When this is filled up with water it permits it to run more evenly into the soil, effectively reaching the roots of the vegetation planted in the raised bed.

Planting vegetables is commonly done in geometric arrangements and is closer than you usually find when gardening in rows directly in the ground. The closeness of the plants to each other can cause a microclimate which helps to save moisture and keeps the weeds down. Also the soil doesn’t become compressed, as there are not any human boots walking on it, which means the roots can grow without restraint. These dissimilarities from conventional planting frequently lead to more vegetables being produced.