Hi Tui, I’m wanting to feed gypsum to my lawn. What quantity per M2 should I use? 

Hi Bruce 

Use Gypsum at a rate of 500g – 1kg per square metre of lawn. One 8kg bag will cover 8-16 square metres. One 25kg bag will cover 25-50 square metres. The application rate varies due to the type of soil the lawn is growing in. For heavy clay soils use it at the higher rate, for good soils use at the lower application rate. Water in well after application. 

Thanks, Tui Team.