Watering seeds on Chol Hamoed

Shavua tov,

May one water seeds that were planted before Yom Tov on Chol Hamoed? They’re planted outdoors near some other shrubs,grass,etc

If they will get ruined if not watered it is permitted.

If there are potted plants that are falling over, can I add or adjust the soil to hold the plant up so it doesn’t fall over and dry up?

No dirt work