Mona,
Your babies are so cute, thanks for the pictures.
In my pots I use half potting soil and half fine pine bark mulch. Sometimes the fine bark mulch is hard to find and I use whatever brand I can find. The daylilies love this mix. I then add my time release fertilizer Nutricote or Dynamite (the one you can buy at Home Depot). Then when I fertilize I spray with a liquid fertilizer. I water them faithfully every other day in the heat of summer, which was brutal this year. We had 71 days of over 100 degrees.
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