Giant grass has almost no shortcomings. If you have to find one, it is not tolerant to waterlogging, so there can be no water at the roots. 1, the output of giant grass is very high, and many farmers will plant giant grass in a large area. This is because after repeated improvement, the annual output of giant grass is extremely high, which can completely meet the feeding needs of farmers for one year. 2. Giant weeds can tolerate drought. Giant weeds were originally planted in the south, but after repeated research by botanists, they can also be planted in large areas in the north, especially in arid areas, because the current varieties have strong drought tolerance. Giant grass likes humidity, but it is not tolerant to waterlogging. Giant grass likes wet environment very much during its growth, so try to ensure the humidity of the soil. However, under the condition of ensuring a lot of watering, there can be no water accumulation. The giant grass is not tolerant to waterlogging, otherwise it will affect the growth effect.