I recently planted 3 blue glow agave in the front of my house. I am in zone 8b and in the high desert. For planting I used a cactus mix and some native soil from the backyard which is very sandy and rocky. I have noticed the lower leaves around one of the agave getting yellowed and what seems like wilting. I went to see how dry the soil was around it after watering yesterday and discovered soil was not covering up the roots on one side of it after planting so I quickly filled that in. I'm not sure if this could be the death of this beauty or if it can recover. I have had it about 2 weeks and it seems to only have affected the lower leaves. I have included pictures and appreciate any advice you might be able to give. I have been hand watering them every four or 5 days (which I read to do for the first month or so until acclimatized... I hope that's right!) They receive full sun from the morning until around 1pm then are in filtered shade from a nearby tree for the rest of the day. Temperatures have been around mid to high 90's during the day.