They are a hardy plant and so easy to divide. You just dig up a big plant, shake off the soil and rip apart the roots to have more than one piece of plant with roots. They're tougher than you think :-) I love making more plants out of what you've got!
I got this white one last week. It is probably really considered a very pale yellow. It's funny how some flowers just don't come in a particular color; Yellow or Orange Camellias, Blue Roses, Yellow Impatiens(they've sort of figured out).
I even got a double flowered orange variety just yesterday and it bloomed today.
If you like Daylilies you might visit the LA County Arboretum where they're having a Daylily Show this weekend June 7 & 8. For some reason I didn't get to go last year and then saw beautiful photos afterwards and kicked myself for not going. I'm definitely going to check it out on Saturday.