Pot Sizes - A Comparison

It can be confusing when buying plants online - sometimes the cheapest is not the best value. Generally these days a 50mm pot can cost anything from a few dollars to $8. Other garden clubs - which charge upwards of $50 per year to be a member also offer plants around the $6-$8 mark, and if you aren't a member dont think you'll be getting your hands on the most desirable varieties. These plants are usually grown in a 65mm pot. How does this compare to a plant grown in a 100mm pot that is between $10 and $12.