Simeon Liljenberg is Head Groundsman at the Swedish national football stadium, Friends Arena. According to him, many groundskeepers should consider cutting down on irrigation. “A lot of pitches get way too much water. As a matter of fact, a huge amount of money could be saved by drastically reducing irrigation,” Simeon says. Over-irrigation is bad from three perspectives. Firstly, we should all use water wisely, since there could be a shortage of water in many parts of the world in the future. Secondly, irrigation often takes a lot of time and effort: particularly when it comes to moving around, setting up and adjusting equipment. Finally, a constant supply of plenty of water leads to shallow root systems, which can increase weed growth. The basic rule is: irrigate a lot, but not very often.