i have used turkey cooking bags [with holes punched in] to line pots, but that was when i was unsure i was using food grade plastic containers for garden veggies, which is a moot point since you won't be eating your roses.

Has anyone used bubble wrap? Would it insulate or cook the roots?

Clay pots should be fine, they let air and moisture flow through.

For plastic, I would not use black plastic if possible. You could cut a few holes along the sides of the pots to let some air flow.

I live in Florida and only use plastic, thermo type pots for large plants. These pots are made of some sort of thick thermos type plastic.

You could try to shade the pot and allow the roses to get full sun. I have a few growing under trees which give some shade.

Jane

Thanks. I might put some shade cloth around them in summer .. I'm sure I'm over thinking it all!!

You are correct that corks in the bottom of the pot will not be beneficial.

As far as things to do with corks:

1) Use them as part of the media for epiphytic orchids.

2) Cut them and use them as "feet" under pots or saucers.

3) Drill holes through them and wire them together to use as indoor/outdoor trivets.

Thats actually a great idea, I have dendrobium orchids - and problems with clay soil so I could use the huge bag up (we didn't drink ALL the wine!) by mixing them underneath the orchid bark.