Seeds of Change 01614 Certified Organic Seed, Thessaloniki Tomato 100-percent certified organic seeds grown in the usa for over 20 years Free of gmo's (genetically modified organisms), chemicals and pesticides Hermetically sealed package that is re-sealable gives longer life and higher germination rates Independently tested for high germination rates and purity and meets or exceeds federal standards Seeds of change contributes 1-percent of net sales to advance the cause of sustainable organic agriculture worldwide