The foam is an open cell so water and nutrients can get in it and it
can compress with plant grpwth.

Anyone ever seen a lilly planted this way before? Pros/Cons to it
being done this way? Roy

Nope, haven't seen this. I use strips of black weed fabric over the top of
the soil and put rocks on that. Both would keep the rocks from settling
down into the dirt, which use to happen before. ~ jan

~Power to the Porg, Flow On!~