This is a question I have in mind from long time.

Almost all of my daylilies grow slanting. They tend to slant like Pisa's Tower. If you don't know about this tower I'm showing you a picture so we can all laugh together. It's a superb tower in one of the most beautiful places in Italy but the ground under it had a bit of problem so it's leaning on one side. Guess what, the soil under it is clay


Anywho, the most part of my daylilies don't grow straight, fans, scapes, all are inclined. Even the smallest one. I always thought it's a lack of space for roots and how they find their settling, but now that I wrote about Pisa's Tower I may think to soil too.

What do you think about it?

Plants leaning usually means they are reaching for sunlight.

Do you have them in partial shade? Some of my slanting daylilies grown in partial shade are slanted toward the side that has the most sun.

No, they are in total shade for some hours and then in full sun for some hours. They are really crowed. Some lean in the direction the sun comes from but some toward the center of the bed. The bed is very narrow so maybe they bend in that direction because they don't have any other way of doing it?
You can see the slanting starting from where the crown is.