100 Psidium Guajava seeds. Mexico grown. guayaba, or lemon guava. not stratified.
Place a 1/4 cup of sand (or more) in a mixing bowl. 
Add your desired seed amount to the sand. 
Place sand/seed mixture in a ziploc bag and seal.
Label the variety and date clearly on the bag.
Place in the refrigerator for 1 month before planting