"Over 80% of the flowers sold at grocery stores, florist shops, and online are actually grown thousands of miles away, most likely in Colombia, Ecuador, Thailand, or Kenya. In fact, Colombia alone accounts for over 60% of the flowers imported into the US every day!
Most flower workers in Colombia are women who are not paid enough to cover their family’s basic needs. Hours are long, work is intense, and flower workers are exposed to high levels of toxic pesticides and fungicides, leading to health issues for the workers. In addition to the use of chemicals during the growing process, US customs has strict requirements regarding insects in flower shipments, so imported flowers may be heavily treated with insecticides immediately before being packed and placed on a plane bound for the states.
This treatment leaves a nasty chemical residue on the flowers that is unquestionably unhealthy and transfers first to the florists hands then into your home. Yuck." -Foxglove.com