yeah... dry.... With all that dry dry grass around, it will just soak up all the water you give her..... water every day, as it is on earth, so pretty much impossible to overwater unless it had been raining none stop...... Maybe instead of watering straight through if you dont want to water with alot of water with nutes, or flush away the nutes, maybe water from the outside and make your way slowly inward towards the plant with just ph'd water......... What does your soil's PH run at btw? :/
and did you work the soil enough before you planted?.... Is it 100% native soil, or did you mix in top soil?........ Should add some Dolomite Lime and a lil Iron...