As its name suggests, the Cold Storage House is used mostly for storing plants and controlling their growth with cool temperatures, as florists might use refrigeration to prolong bloom. Bulbs being forced for the Spring Bulb Show and chrysanthemums being trained on wire for the Fall Mum Show can often be found here. More permanent residents include a eucalyptus tree (Eucalyptus beyeri) and showy coralberry (Ardisia crenata).

Kid's Audio Tour stops:
Cold Storage/ Physiology House Overview - Stop 170

Adult Audio Tour stops:
Physiology & Cold Storage Overview - Stop 370
Mum and Bulb Shows - Stop 371
Computerized Vents - Stop 372
Historic Overview - Stop 373