Beginner Gardening: Problem with windmill palm, 2 by mikesig83

mikesig83 wrote:
Hello,

I had a landscaper plant a windmill palm in my backyard in March. I noticed some slow deterioration of the plant about a month into it being in the ground. I thought it was just shock from its new home in the ground. Within the past few weeks, I have noticed a considerable decline the in the health of the plant. This is my third windmill in this spot. I've killed two so far. I planted one in 2010 right next to it and its had no issues and looks great. Not sure why I am having so many issues with this one. I noticed the ground had poor drainage, so I tried building up the base a little so water wouldn't be standing when I watered/it rained out. I've attached some pictures so you can view my issue. I am not so concerned about the low hanging fronds that are browning. I am really concerned about the ones that are standing up straight and are turning brown.

Any ideas would be greatly appreciated because my landscaper is no help at all.

Thanks,
Mike