I've got four large pots with filler on the bottom, 6" soil, then 1" potting soil, all filled with marigolds. Two pots grew very well and lush at first, while the other two (which have different "moisture-control" soil) haven't. Of the two good pots, one is shaded half day, other is shaded 1/4 day. Neither have produced flowers yet, and the 1/4 shade plants start looking wilted every morning as soon as the sun hits. I water everyday, but don't know if it's the sun or too much water. The 1/2 day shaded plants are now beginning to do the same. I thought these did well in full sun to partial shade, so I'm not sure what I'm doing wrong. Any tips or secrets I'm missing here?