Hi, Thank you for your feedback! Long shipping intervals may cause some yellowing. Generally, within one day of opening the box and providing fresh air, the Gotta Go Grass will regain its lush green appearance throughout. We apologize for any trouble this has caused, our team would love to help you further, please email us at e-business@bethelfarms.com and we will reply within 24 to 48-hours. The Bethel Farms Team