Cameron Diaz [1] and Nicole Richie [2] linked up to do some plant shopping at the Rolling Greens nursery in LA on Tuesday. The sisters-in-law, who are married to Good Charlotte rockers Benji and Joel Madden [3] respectively, shared a laugh and animated conversation as they walked side by side and left the store with some greenery.

While Nicole has been out and about quite a bit lately — she recently attended pal Jessica Alba's star-studded Honest Beauty dinner [4] as well as a CFDA event [5] and a private fashion dinner [6] — we haven't spotted Cameron on the red carpet since nearly a year ago, at the December 2014 premiere of Annie. She and Benji, who tied the knot in January, seem to be laying low and enjoying the newlywed life; they were snapped shopping for housewares in Hollywood last week after a whirlwind trip to Australia [7] together earlier this year. Keep reading to see Nicole and Cameron's cute sisterly outing.