Aquatic gardens or water gardens are man-made water features. The purpose is to house a particular species or variety of aquatic plant. Water garden are primarily focused on plants but can have ornamental fish, in the case of a fish pond.
During the sixteenth century, Europe displaced a renewed interest in Greek philosophy. They were enamored by the works of Hero of Alexandria about hydraulics. Fountains and grottoes were incorporated around water-driven figures that moved or spouted water in the form of a fountain.
Water gardens do not have a specifications pertaining to size or depth. They are small, shallow, less than twenty inches deep. Certain aquatic plants which are depth sensitive cannot survive if the specific water depth is not measured. The depth and area will be determined by the particular species inhabiting the water garden.
Water lily and Hornwort require water gardens that give them space to be completely submerged under water. At times, their leaves or flowers protrude to the surface. These oxygenators create oxygen for the fish that live in a pond.
Iris, Bulrush, Arrowhead and Lotus are marginal plants which has roots under water. The rest of the plant is always visible above the surface. They grow barely below the water level.
Mosquito Ferns, Water Lettuce, Water Hyacinth, Water clover and Water Spangle are floating plants, which are not at all anchored to the soil.Free-floating on the surface, they provide shade to reduce algae growth in a pond. These are often extremely fast growing and multiply rapidly.