Question
My daylillies have a lot of yellow or part yellow leaves and they have not bloomed yet.  We have had alot of rain and 90 degree weather.  Otherwise the plants look healthy and are continuing to put out new leaves.

Answer
Hi Milesm,
Thanx for your question.  Too much water and soil that does not drain well will have an adverse affect on your day lilies.  The heat, I don't think is an issue just yet. I think it's just that there may have been too much rain.  Mine are just starting to bloom.  But they are at the top of a hill, with well draining soil.  No yellow leaves but not a whole lot of blossoms just yet.  I hope this helps.
Tom