The only thind that's ever bothered mine was too much water,yellow leaves.That happened this winter with all the rain,but not hot enough or warm enough to really dry them out.I never water mine,just let nature take care of them.Hope this helps,Cindy.

mine get no water and doing fine. however, we just planted some more and one died (out of 16) and we suspect dog pee is the reason.

How much water are yours getting? Or dog pee.

I have been watering them every few days or so so they could get established. So I should completely stop any watering?

I would stop watering them. When they look wilted then add some. We've only watered ours twice in 2 weeks but sand holds water longer so stick your finger down there, if it's damp don't water.