Hi LariAnn,
What great information! I used a variation of the fertilizer regimen you layed out in "Soil Fertility by the Seasons" on some of my tender Aroids last year and the difference was marked.
I believe I have regular Caladiums as the tubers are good sized, ~2-4cm dia. I've potted them but left 2-3" for adding more soil so I should be able to incorporate the 18-6-8 into that. Do you feed the MG into a tray? I was told Caladiums like a well draining mix and dislike soggy conditions and so was planning on forgoing a tray.
