Marsha writes
The shelf life of Bayer Advanced All-In-One Rose and Flower Care is 3 years as long as it has been stored in a temperature controlled environment and out of direct sunlight. If it has been stored in those conditions and is less than 3 years old, we would recommend contacting the manufacturer to check with them what could have caused the color to change over time. The manufacturer, Bayer, can be reached at 800-331-2867.
Answer last updated on: 04/03/2019
