Siguy
Sapling
Plastic liners should do, right? I've read a few places to not even bother moving it to pottery until its finished.I wouldn't remove any soil from the plant. Put some new soil in the new pots and slip the plants (roots still covered in the original soil) out of the liners and into the new pots. Make sure they're firm in the new pots. When those pots get filled move them to the next size up.