I don't like plastic pots either. Even though terra cotta pots are
porous, I think they look so much nicer and more natural. One of the
things I do, is to buy the matching terra cotta saucers for my pots.
This allows for a little water reservoir at the bottom. . .But you
probably already realize that!
Sacramento gets quite hot on some days in the summer. . .but for the
most part, the terra cotta pots have worked just fine.
Myrl Jeffcoat
http://www.myrljeffcoat.com