Interesting, I am still amazed at what I do not know. I will be putting my pots on mounds of mulch. My in-ground are planted with a mixture of black cane soil, Lee County compost(free), home grown compost and heavy mulch on top. This ( I believe) helps prevent nematodes, at least I have not had problems (yet) where a neighbor plants straight into the sand and has problems. I will be asking for more advice as time goes. Thanks.