TN_Jim
Omono
I started supplementing trees with pumice that needed more drainage than provided by DE alone such as Eastern Hop Hornbeam. I do not have pines, but one difference I have noticed is less susceptibility to fungal leaf issues -I also use pine bark.I normally do 100% DE, last season I tried pumice and really liked it.
I was considering doing a 50/50 mix of DE and pumice for some JBPs. Would you that be just as good as 100% Pumice? Considering 100+ summers?