AusBonsai

Hi Guys
I managed to drill a 20mm hole on the bottom of a glazed baking dish. Its glazed on the inside and outside. I am trying to grow a bonsai in it. Will it be successful?
Nicky

I have limited experience with internally glazed pots, but I did buy a maple in a very shallow one that had a clear glaze inside. It certainly wasn’t healthy, though the drain holes were above the lowest level of the pot so it could equally have been that it didn’t like having a water reservoir in the pot.

It will just make air exchange though the pot harder/ virtually impossible depending how tick the glaze is, so it would affect your watering as the water loss is reduced.

Generally I avoid them but if you were using it to hold a rock that a tree was planted into a rock, or as a suiban or to display a rock it would be fine.

When I first started bonsai I was told not to use interior glazed pots. But I do, with no ill effects I put trees that suffer thru the summer heat and like to be on the wetter side into them. They grow fine if your not sure just check before watering.
Cheers
Kirky

I can't see why it would be an issue. Plants live fine in plastic pots

High fired pots are fully vitrified thus impervious to water, much the same as glaze

Thanks All for your comments... Let me try a couple of pots and will share my experience. Cheers