Magnolia virginiana in Massachusetts written by Peter Del Tredici.

History

The sweet bay magnolia swamp in Gloucester, Massachusetts has been a botanical shrine since its discovery in 1806. Early New England naturalists and botanists of all types, from Henry David Thoreau to Asa Gray, made pilgrimages to the site of this northern- most colony of Magnolza virginiana. The local residents of Gloucester were so impressed with a “southern”plant growing this far north that they changed the name oft he Kettle Cove section of the town to Magnolia in the mid-1800s. It is probably no coincidence that this name change occurred at the same time the area was starting up its tourist trade.

In addition to its isolation, the Gloucester Magnolia population was remarkable for having escaped notice until 1806 in an area that was settled in 1623. This fact has led at least one author to speculate that the colony was not wild but escaped from a cultivated plant (Anonymous, 1889). However, the overwhelming consensus of earlier botanists is that the population is, in fact, native. Whatever its origin, the swamp remains today the unique and mysterious place it has been for almost 200 years.

Very little has been written about the magnolia swamp in recent years. The latest, and best, article about it was wntten by Dr George Kennedy, and appeared in 1916 in Rhodora, the Journal of the New England Botanical Club. Dr. Kennedy summarized the history of the stand, and cleared up the confusion about who discovered it by publishing a letter he found, written by the Honorable Theophilus Parsons to the Reverend Manassah Cutler in 1806. The letter captures the emotion of the moment of discovery:

Reverend and Dear Sir:

In riding through the woods in Gloucester, that are between Kettle Cove and Fresh Water Cove I discovered a flower to me quite new and unexpected in our forests. This was last Tuesday week [July 22, 1806]. A shower approaching prevented my leaving the carriage for examination, but on my return, on Friday last, I collected several of the flowers, in different stages, with the branches and leaves, and on inspection it is unquestionably the Magnolia glauca Mr. Epes Sargent has traversed these woods for flowers and not having discovered it, supposes it could not have been there many years. It was unknown to the people of Gloucester and Manchester until I showed it to them. I think you have traversed the same woods herborizing. Did you dis-cover it? If not, how long has it been there? It grows in a swamp on the western or left side of the road as you go from Manchester to Gloucester, and before you come to a large hill over which the road formerly passed. It is so near the road as to be visible even to the careless eye of the traveler. Supposing the knowledge of this flower, growing so far north, might gratify you, I have made this hasty communication.

Your humble servant, Theoph. Parsons

To read Mr. Del Tredici’s fascinating article in full click here Magnolia virginiana in Massachusetts, including an excerpt from when Henry David Thoreau visited the swamp and wrote about it in his Journal.

Peter Del Tredici is a Senior Research Assistant at the Arnold Arboretum and Lecturer at Harvard Graduate School of Design. Peter writes the following for the Arnold Arboretum: “My research interests are wide ranging and mainly involve the interaction between woody plants and their environment. Over the course of thirty plus years at the Arnold Arboretum, I have worked with a number of plants, most notably Ginkgo biloba, conifers in the genera Tsuga and Sequoia, various magnolias, and several Stewartia species (family Theaceae). In all of my work, I attempt to integrate various aspects of the botany and ecology of a given species with the horticultural issues surrounding its propagation and cultivation. This fusion of science and practice has also formed the basis of my teaching at the Harvard Graduate School of Design (since 1992), especially as it relates to understanding the impacts of climate change and urbanization on plants in both native and designed landscapes. Most recently, the focus of my research has expanded to the subject of spontaneous urban vegetation which resulted in the publication of “Wild Urban Plants of the Northeast: A Field Guide” (Cornell University Press, 2010).”