Hayden Christensen, 40, was on dad duty Memorial Day weekend! The Star Wars alum headed to the Los Angeles Farmer’s Market with adorable daughter Briar Rose, 6, who he shares with ex Rachel Bilson, 39. The father-daughter duo appeared to be on a gardening mission: Hayden could be seen holding an array of potted plants as he walked next to his daughter, who held two small ones of her own.