I don't worry about any perlite sticking to the roots, Cheryl. Those roots are very fragile, so the less you mess with them the better. I use standard 1 gal. and "nursery" 1 gal. pots. One actually holds about 50% more soil than the other. I don't see any problem with going with a 2 gal. pot. Just be sure your soil is well-draining. These roots grow quickly and within a month, regardless of the size pot it/they are in, those roots will pretty much fill the space.
