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In 2017, they recruited Mina Kiani, a graduate student at the university, to see whether she could use nutrient-rich sediments dredged from the lake to grow grass crops such as Kentucky bluegrass, ryegrass, and red fescue.

The All England Club has changed its grass from a blend of 70 percent ryegrass seed and 30 percent creeping red fescue to 100 percent ryegrass.

It removed the creeping red fescue Wimbledon had included since 1877.

The new grass was 100% perennial rye; the old courts had been a mix of 70% rye and 30% creeping red fescue.