Menards always have the playground sand on sale. I have added that to beds on initial preparation. I don't do any potting of daylilies around here. I had one in a pot for one winter that I moved to the front landscape bed due to its long blooming display this past fall.
Michele thanks for the link to that article on cheap soil. I have read of the optimum ph of 6.4 for daylilies. I believe it was an article by Mr Trimmer. Correct me if I am wrong. "My problem was that my original soil mix cost about $14.00 per yard, whereas the new mix is about $32.00 per yard. The former owner of 1-4 Plantland, Don Maynard, used to tell me, "The most expensive thing you can buy is cheap soil." plantapalm.com. Proper initial garden preparation is essential. If you are not going to do it right, don't do it at all ! I always take the time to prep the planting hole before planting. Florikan doesn't have any distributors in Illinois. The feed store that I got the Alphalfa from probably carry the bigger bags of the extended release fertilizers or they can order it. Now we know what they use in the pots. What about the soil???