Technical Abstract: Postharvest 1-methylcyclopropene (1-MCP) treatment is used to counter ethylene activity and delay senescence in many fresh produce commodities. This study investigated the effect of 1-MCP treatment with modified atmosphere (MA) packaging on quality maintenance of edible flowers. Freshly harvested carnations and snapdragons were packaged in rigid trays with or without 0.5 µL L-1 1-MCP, sealed with gas permeable film and stored at 5 °C for 14 days. Package atmosphere, electrolyte leakage, weight loss, decay index and overall quality were evaluated on days 0, 7 and 14. Treatment with 1-MCP resulted in significantly slower changes in O2, CO2 and C2H4 partial pressures in package headspace than for MAP control (no 1-MCP). 1-MCP treated flowers also maintained a significantly lower decay rate than the MAP control at the end of storage. MA packaging significantly reduced dehydration of flowers. Flowers packaged commercially in plastic clamshell containers endured greatest weight loss and quality decline. In conclusion, treatment with controlled release 1-MCP in MA packaging maintained high visual quality of edible flowers for 2 weeks compared to 2-5 days when stored in current commercially used containers. Extension of edible flower shelf-life may allow decreased shipping costs and wider edible flowers use in the restaurant industry.