A raised bed or high bed is a bed with sides that is elevated from the surrounding ground. It is used in gardening to grow vegetables and other plants. Square foot gardening is a gardening technique where plants are grown in modular raised beds divided into one-foot squares to efficiently use small spaces and make gardening easier.

4. de.wikipedia.org/wiki/Hochbeet

8. waihekepedia.org/Square_foot_gardening

9. waihekepedia.org/Square_foot_gardening