Planter drainage question
I've been asked by a client to transplant a couple of pear trees to a couple of planters he had built on his slate porch. I would have preferred that the planters had been set over soil with an open bottom but this wasn't done. These are rather large stone masonry contstructions that each have three 3" by 6" openings for drainage on the base of the outward facing side -that is the only escape for water.
A roll of landscape fabric was left in one of the planters which I assume is a message from the mason to use at the base to prevent the potting soil from eroding out of the drainage holes.
Would you (whoever answers) suggest I place that fabric against the drainage openings and fill all the way with a decent potting mixture, or should I place gravel on the base of the planters (although I know this creates a perched water table) and put the fabric over that and then put the potting soil above both?