My parents just said that we had to have a lily; they didn't give any particular kind or anything. I'm pretty sure they only want it so that it will look nice in the pond, not for aroma, and the ones they're drawn to are the types with the large flowers. But, it also has to be able to survive the freezing temps we get in the winter, with the lowest ever being only around 20*F at night, but only for around a week out of the year. (I forgot in my earlier post to mention the nightly temps, and only gave those during the day.) Not quite sure about the size yet, but I'll go out and try to get an idea of how much square footage I want the lily to cover. Until then, I don't think a dwarf lily would be large enough, but I believe two "average" size lilies, if there is such a thing, would do fine.
At the local pond store, they have quite a few lilies to choose from, but they're all at least $35, with some going at $45 and $75. Is there an online seller for lilies that I can expect a lower price from?
Thanks for your help guys.