Seed Bank in Ames, Iowa
Sunflowers being grown out are kept in insect-prooof cages to prevent cross pollination, at the USDA-ARS North Central Regional Plant Introduction Station in Ames, Iowa.
Each cage has it's own beehive so that the plants are properly pollinated. Seeds must be grown out periodically to keep them viable, one of the issues that makes proper maintenance of a seed bank difficult and expensive.
Candice Gardner, USDA-ARS Plant Introduction Research Unit
North Central Regional Plant Introduction Station, G212 Agronomy Hall
Iowa State University, Ames, IA, 50011 Phone: (515) 294-7967 Or: 515-290-2278 Or: Email: email@example.com