My BC girl likes to chew the new spring grass, its sweet so it tastes good. There are several theories about eating grass, one says they chew grass to settle an upset stomach, others for nutrition. ITs not good in quantity as the digestive system cannot break down plant material and it either comes out when going potty or vomiting. My dogs also pick cherry tomatos off the neighbors plants, eat apples, dried cranberries (treats ) and other plant material but only after it is ground up to a slurry. I would make sure that the grass is not sprayed and watch intake if there are problems curtail the intake. If no problems let it be