that looks like Philippine grass lack of water of in the shade

how u plant it ? cutting it to small pieces? u need to go and get fertilizer, normal organic NPK 555 will do, and dont water it everyday if u not plant it by sod, too much water ur cutting will not dig deep to find water, sometimes just let it stress for a bit for water then water it thoroughly like that the root will dig deeper to find water source n ur grass will be much more healthier, hope it helps

remove the plastic and put in the pot u will need to add some more soil and if it's indoor u need a plate beneath the pot so that ur floor wont get wet when u water it or else u need to water it outside n move it inside when the water is stop dripping

ok then u need to drill a few holes if not change to the normal flower pot, n they do seel those plate to put underneath the pot get one n your problem solved