Absolutely. Funny story or not. Last year I was going to take my maw in law to doctor instead of my husband. She didn't want me to take her. She was mad at the thought of me taking her. It made me mad. So anytime I can get out my madness I go to weeding or do something to the garden. I moved all of my relief daylilies. None of them were doing really well. I planted them under a dogwood tree and everyone of them has sprung up and look healthier. Fans a lot bigger. Scapes healthier and taller. I honestly believe it depends on soil conditions. What they were in before was Alabama clay. The soil under the dogwood is rich dark soil. Easily dug. Unlike what they were in.
Also our friend told us to separate large clumps every few years so they won't choke each other out.