There are several on line places to get hardy lotuses, which is not to say they are cold water lotuses. There is a native, cold water lotus available at Hughes water garden in Wilsonville, but it does not at all look like what one images when one says "lotus."
If your pond never reaches above 60, growing lotus is a waste of time.
Here in Oregon, it is not the winter that kills lotus, it is the summer. We typically do not get enough heat, nor do we get enough sunlight.
If you have a place indoors that has both heat and light, you could try bowl lotus. Lotus has a very short mail ordering window of opportunity. It must be kept in cold storage until it is ready to ship, then it must be warmed up immediately upon arrival. Shipping is April - May - maybe June, depending on zone. You can order now, but you won't get it until next year.
If you tell me what it is you like about lotus, and why it is so important to you, I might be able to suggest something else.
