Wow! I was just staring at my tri's and thinking how bad they look, good to hear that they are not easy in the ground for others too. One of them has gone almost completely dark green, very little color and no white left. It is in deeper shade than the others. Another one disappeared and I thought it was dead and gone. I just noticed new shoots coming up from it so I guess I have another chance to keep it alive. All of them get brown tips on the leaves and are just kind of ratty looking. I think I will try the epson salt and maybe be more reliable about watering. I wonder if the heat got to them as well?