I am even further south than you, Arlene, but a mile or so from the water. I've 'migrated' all my daylilies to the north side of the house now, so that they are in full shade in the winter. That way the sun can't warm the soil up until into March and it gives them at least a bit more cool 'rest' than out in the garden. I get a shorter bloom season through the year, but they last a lot longer this way.
The only white I've tried here so far was 'Joan Senior' and it did peter out after a few years even though it's an EV. I have a lot of problems with tree roots invading my flower beds, too. Very nice while it lasted.
