The Septic System Landscaping Dilema

Here is a photo of the landscaping around our aerobic septic system  http://www.damnseptictank.com/ holding tanks prior to removal of landscaping. The variegated shrubs and sago palm were babies when I planted them. The red shrimp plants were frequently visited by hummingbirds and swallowtail butterflies.  I purchased the pastel pink crape myrtles from Cornelius nurseries on Dairy Ashford when I was an employee there in 96'. They were only supposed to grow 18 feet but at the time of removal they were 30 feet. Needless to say their roots were tickled pink to be on top of the septic tanks.

I had to remove the landscaping because the roots of our 70' tall gorgeous bald cypress tree had invaded the septic tanks. Whatever I chose to put in place of the previous landscaping had to have shallow roots.  So, for the first season I decided to put down some native wildflower mix I purchased from the Wildseed Farm in Fredericksburg.   http://www.wildseedfarms.com/

I also put some sunflowers along the fence line to draw the eye up and add interest.  This may seem hard to believe but the squirrels cut every one of the sunflowers from their 8 foot stems and dragged them off to the tree tops.  I don't think I would have believed it if I had not seen it myself.  Not one of those beautiful golden sunflowers made it to a vase in my home.

The wildflowers put on a good show and were beautiful all summer on into the Fall.  I still haven't decided how to cover up the existing concrete covers to the septic tanks aerobic system.  I'm still working on that. Any ideas? 

 I can now say with great authority," One should never install a new septic system within 50 feet of a Cypress tree."