2. Danish grass can withstand the extreme low temperature of-35℃. In Beijing, it only stops growing at the root in 1 month (the lowest temperature is-14℃), and the water content of leaves is kept at 66% ~ 70%, and the leaf color can be kept bright green all year round. After being planted in Beijing and its surrounding areas for more than 20 years, almost no pests and diseases that can affect normal growth or ornamental value have occurred.