A few weeks ago, Lulu was called to pick Charlotte up from school when no one arrived to get her. Lulu informed Nina that Nelle and Valentin were no shows. During these scenes, Lulu was wearing  black floral mixed print tunic from Free People. Lulu's Wildflower Fields Tunic is currently on sale, and it's also available here and here. The top also comes in a rose garden print.

Here's a closer view of the print at the neckline: