The plants in the Wheaton greenhouses are divided into four separate greenhouses which cater to their needs as a group:
- The Tropical house is home to our tropical and rainforest collection and a portion of our ferns.
- The Desert house resembles the arid environment and provides xeric plants with the warmth and low humidity they require.
- The Temperate house, during the winter months, has cooler temperatures than the other greenhouses. Many ferns, cycads, geraniums, seaside goldenrod, Amaryllis, and some begonias are in the Temperate greenhouse.
- The fourth and largest of the greenhouses is reserved for research and plant projects performed by Wheaton faculty and students as well as classes in Introductory Biology, Genetics, Plant Biology, and Ecology.