The Three Sisters Diorama
Collectively referred to as "The Three Sisters," corn, beans, and squash were the principal crops of the Haudenosaunee (Iroquois) and other Native American groups in the northeastern United States, at the time Europeans arrived here about 1600. By this time, the Haudenosaunee had been planting these three crops together for about 300 years. Corn and beans are not native to this area; they originated in tropical America where they were cultivated by early peoples, long before these crops were cultivated in the northeastern United States. Pumpkins and similar types of squash have a tropical origin, as well.
The Scene
The scene is in the Mohawk Valley about 30 miles west of the confluence of the Mohawk and Hudson rivers near Troy, N.Y. The view is to the southeast toward the Mohawk River where it flows through a narrows called the Noses, several miles west of Fonda, N.Y. The setting is a day in late August when the corn is beginning to mature. This is the time of the Green Corn Festival, one of the Iroquois' days of thanksgiving.
The earliest evidence of corn cultivation in New York is by 1200 years ago (A.D. 800) and beans, about 500 years later (A.D. 1300). The tropical varieties of squash did not enter the Northeast until about 1000 years ago (A.D. 1000). Some other types of squash originated in the eastern U.S.; they were cultivated in the Northeast by at least 2700 years ago (700 B.C.).
Cultivation of crops, gradually brought about a change in the Haudenosaunee way of life from hunting and gathering their sustenance in the woodlands, to cultivating crops in fields created by clearing patches of woodland. However, the Haudenosaunee had cultivated plants native to the Northeast long before 'The Three Sisters' became the basis of their economy. Native plants were not only sources of food but also provided medicines, beverages, dyes, etc. We know very little detail about these earlier agricultural practices.
The development of farming brought about the development of 'permanent' villages linked to the fields. Women, who did the farming, then lived year-round in the villages. This arrangement was established at least three hundred years before European arrival.
Highlighted Scenes within the Diorama
Cultivated Plants and Fields
The Haudenosaunee crops required well-drained soil with a high lime content.
A good growing area could be recognized by the kind of forest growing there. In addition, the soil had to be easy to work because the tools of the time were made of stone, antler, bone, and wood.
In a virgin forest, the trees were huge and widely spaced. Such trees were killed by girdling, a process that allowed sunlight to reach the forest floor; then crops could flourish. The dead trees were left to rot or burn. Annual burning cleared the fields of weeds and stubble.
The soil became exhausted after a decade of farming, so the fields were abandoned. The forest reclaimed the land and rejuvenated the soil, which prepared it for another cycle of farming after 50 or 60 years. The people got a great bonanza of trees small enough for their construction projects when they cleared this second-growth forest for new fields. This time they felled the trees and burned the unwanted brush.
Forest Trees in the Background Painting of the Diorama
The background represents a beech-maple forest named for two of the more abundant kinds of trees found in it, American beech and sugar maple. White ash, American basswood, pignut hickory, shagbark hickory, white pine, yellow birch, hemlock, American elm and sweet birch are other trees commonly found in this type of forest. The Iroquois had learned that this type of forest grew on a fertile soil that would be good for their crops. Similar forests grow in the region today.
When your are at the exhibit, notice that the trees in the background painting are not large, and that they are close together. This is a second growth forest about 50 years old. This new forest invaded an earlier field, which was abandoned because the soil had been depleted by farming. The new forest growth restores the fertility to the soil, and trees of this size are ideal for longhouse construction.
'Weed' Plants in Bloom
Sketches of Weed Plants in the Diorama
mature plant is 2 - 4 feet in height black-eyed Susan or cone flower (Rudbeckia triloba)
mature plant is 2 - 4 feet in height evening primrose (Oenothera biennis)
mature plant is 1 - 5 feet in height white daisy or fleabane (Erigeron annuus)
mature plant is 1 - 3 feet in height goldenrod (Solidago canadensis)
mature plant is 2 - 4 feet in height common milkweed (Asclepias syriaca)
mature plant is 1 1/2 - 4 feet in height May apple (Podophyllum peltatum)
mature plant is 1 - 2 feet in height wild strawberry (Fragaria virginiana)
mature plant is 4 - 8 inches in height staghorn sumac (Rhus typhina): a twig with several compound leaves
mature shrub is up to 15 feet in height little blue stem grass (Schizachyrium scoparium)
mature plant is 1 - 2 1/2 feet in height
Not illustrated: crabgrass (Digitaria sanguinalis) -- badly trampled specimens in the foreground of the diorama.
(When you visit the Museum, you might take along a copy of these plant pictures to help identify the plants in the diorama)