Planting higher in clay soil
I just read somewhere that plants should be placed higher in clay soil so that the root ball sits about a 1/2 inch above the ground. We have clay soil but I don't tend to plant high.
I'm assuming that half inch would be covered by mulch to protect any surface roots --- is that correct?
Rather than leave the top 1/2 inch exposed, wouldn't it be better to plant in a low mound and cover the entire root ball?