All 19 Wimbledon courts are made up of Rye Grass.
Wimbledon is played on grass courts.
All the courts at Wimbledon are made up of rye grass, with each blade being an average of only 8 millimetres in length.
because it (the grass) reduces the friction between the ground and your shoes unlike clay courts.
Wimbledon is played on specially grown grass that allows the ball to bounce normally. The grass is cared is specially cared for when not in use.
According to the Wimbledon website (refer to the link, below), as of June 2009, the grass courts at Wimbledon are made of "100% Perennial Ryegrass".
The length of time required for tennis court construction depends heavily on the type of court being constructed. There are three main types of tennis courts: clay courts, grass courts, and concrete courts. As for grass tennis courts, the construction time depends on whether or not you already have suitable grass to build the court on. If the grass is already there, then construction of a grass tennis court need not take very long. However, if you need to grow the grass for your tennis court, then this type of court can take quite awhile to construct. Concrete court construction time is limited by the amount of time necessary to prepare the land for the concrete to be poured as well as the length of time it takes the concrete to cure after it is poured. Depending on who you hire and how long they work daily, concrete court construction can a few weeks. Weather can impact the length of time necessary to construct all types of tennis courts.
Outdoors, tennis is played on clay, grass (real or synthetic) and hard courts. Indoors it can be played on wood.
The three most common surfaces are grass, clay, and hard surfaces like pavement, concrete, acrylic, etc. The Wimbledon uses grass courts, which add pace to the ball and the ball's bounce is harder to predict. Clay courts are featured at the French Open and usually have a pretty predictable ball, but the ball has more spin and moves slower. Hard courts, most common, have a fast-paced ball and are the easiest to predict.
The green courts not the red ones