how many tournament grass courts does wimbledon have
All England Lawn Tennis and Croquet Club The Club currently has 18 tournament grass courts, eight American clay courts, two acrylic courts and five indoor courts. There are also 22 Aorangi Park grass courts, which serve as competitors' practice courts before and during The Championships. The grass courts can be used from May until September. The grass has been cut to 8Â mm since 1995, and 100% perennial ryegrass has been used for its strength since 2001 (prior to that, it was 70% perennial rye and 30% creeping red fescue).[20][21] The courts are renovated in September, using nine tons of grass seed annually.[22]