Connecticut Chapter

Orchards in CT

Open the side panel (click icon on the top left of the map) to see the different type of orchards, photos, and more info

Our chapter is working with the CT State, Land Trust organizations, and private land owners to plant chestnuts collected from wild American chestnut trees in the CT forest, grow, cross-breed, and select hybrid chestnut trees to restore the American Chestnut tree in our state and in its native range.

We manage several type of orchard, in partnership with the organization/person who provided the land, depending on the research purpose.

Back-cross Breeding Orchards

Blue on the map.

The back-cross breeding method for chestnut was developed in 1983 and has several key components, each of which requires research orchards for growing trees to be used in selections. The Connecticut Chapter of TACF manages seven back-cross orchards with approximately 3000 BC3F1 Clapper line of resistance, American chestnut backcross material. Each of these was planted from nuts that originated from CT found American chestnut “Mother Trees”

  • The Northern CT Land Trust’s Swann Farm is located in Ellington, CT
  • The Beecher Road Orchard is on Land owned by the Town of Woodbridge, and managed the Woodbridge Land Trust
  • Wigwam Brook is on Land owned by the Litchfield Hills Audubon Society in Litchfield, and managed by Litchfield Hills Audubon
  • Middletown’s Higby Reservoir Site is on Land owned by the City of Middletown, and managed by Middletown Urban Forestry
  • The Salem Orchard is on land owned and managed by Dr. David Bingham.
  • The Great Mountain Forest Orchard is on land owned by the Great Mountain Forest Corporation, and is managed primarily by CT-TACF and the Housatonic Valley Regional High School
  • The Nut Plains Park Orchard is managed by the Guilford Conservation Commission

Seed Orchards

Purple on the map.

One major phase of the breeding program are seed orchards. A seed orchard is the required next step in producing trees for reforestation in CT that have 50% of their DNA from persisting native CT American Chestnut trees that flowered, allowing pollination and collection of nuts. This DNA reflects the native gene pool that is associated with CT’s soils, light periodicity, disease resistance, rainfall patterns, temperature extremes, etc. These factors differ throughout the native chestnut range in the US and even within CT itself. Capturing this diversity is the goal of the CT program, and seed orchards are our organizational focus, and the primary use of our volunteer efforts.

In a seed orchards, we planted 3000 nuts representing crosses between the twenty lines of trees we pollinated and grew in our backcross orchards. We monitor them for resistance and remove the trees until only those very resistant and American chestnut looking trees remain. These trees are 15/16ths “American” in character, morphologically indistinguishable from native American chestnut trees. The key difference is that the resistance to the blight has been bred into them from the Chinese chestnut. Those few trees (twenty) remaining will intercross and produce seed that is expected to grow trees with high resistance to the chestnut blight and the ability to breed true to resistance.

  • Norcross Seed Orchard -Lamb Rd, Stafford – Norcross Wildlife Foundation
  • Winchester Land Trust – Hurlbut Field Parcel – 675 Grantville Rd Winstead, CT 06098 http://www.winchesterlandtrust.org
  • Rock Cobble Farm, South Kent (no public access)

Germ Plasm Conservation Orchard

Green on the map.

A germplasm conservation orchard (GCO) is an orchard collection of diverse wild American chestnut sources. These orchards include sources primarily native to CT, though other sources can be planted as well.  A GCO generally contains 10 seedlings from 10 different mother trees (100 trees) per acre and is often planted over a period of one to several years. We are looking for more land to establish new GCOs (more information here).

  • Manchester Land Conservation Trust GCO – Bush Hill Preserve, 330 Bush Hill Rd., Manchester, CT
  • Wilton Land Conservation Trust GCO – 183 Ridgefield Rd preserve, Wilton, CT

Private properties (no public access)

  • Woodbridge GCO
  • Roxbury GCO
  • Wallingford GCO
  • Haddam Neck GCO
  • Putnam GCO
  • Pomfret GCO

Demonstration & Educational Plantings

Orange on the map.

The various chestnuts; Chinese, Japanese, European, American, even Chinquapin, have different morphology, and what better way to show that an educational planting. We have several educational plantings around the state designed to illustrate the differing morphology, and teach those viewing the display about the chestnut blight story.

  • White Memorial
  • Rocky Top Preserve – Hamden Land Trust (Plantings of several B3F3 hybrid chestnut trees along the Quinnipiac Trail)
  • Deer Lake Scout Reservation – Killingworth (Plantings of several B3F3 hybrid chestnut trees along the Chatfield Trail)
  • Greenwich Land Trust – American Chestnut Sanctuary Orchard (Across the street from 18 Burning Tree Road, Greenwich, CT 06830)

Progeny Testing

There are numerous locations throughout the state where progeny tests are being performed. These are nuts grown at the Meadowview seed orchards (intercrossed trees) as a result of open pollination. This means the mother tree is known and is selected for maximum resistance, and while the father tree is not known, all have likely been selected for resistance. Of course with open pollinations one can never be sure. This is a type of planting with which an individual or organization can participate in either a small or large scale… both contributing to our understanding of the blight resistance of the latest versions of releasable material. This is a great way for citizen scientists to participate in an ecological restoration project.

  • Zemko Sawmill Site owned by the Salem Land Trust
  • Greenwich Land Trust American Chestnut Sanctuary

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Two American chestnut hybrids showing off their early spring leaves. These trees were planted about 10 years ago behind Lucy Herring Elementary in West Asheville. ... See MoreSee Less

Two American chestnut hybrids showing off their early spring leaves. These trees were planted about 10 years ago behind Lucy Herring Elementary in West Asheville.Image attachmentImage attachment

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Approximately how tall are the trees?

Maryland Friends!

The spring meeting of The Maryland Chapter of the American Chestnut
Foundation will be at the Gaithersburg Library, Meeting Room 3 on Saturday,
April 26, from 10:30 – 2:30. The meeting is free and open to the public.

The meeting will begin with an update on the TACF chestnut restoration program. Our featured speaker will be Donald Edward Davis, scholar, former Fulbright fellow, and author of The American Chestnut, An Environmental History. The American chestnut tells the story of the American chestnut from Native American prehistory through present day efforts to restore the American
chestnut to its former place in the eastern deciduous forest.

You do not want to miss this presentation and discussion!

Visit the link to learn more and register! tacf.org/event/maryland-chapter-spring-meeting-5/
... See MoreSee Less

Happy National Volunteer Week! 🌿

We're sending a heartfelt thank you to all the amazing volunteers who show up, dig in, and make a real difference. Your passion and dedication help us grow stronger every day—thank you for being part of the movement!

#volunteerweek #americanchestnut
... See MoreSee Less

Happy National Volunteer Week! 🌿 Were sending a heartfelt thank you to all the amazing volunteers who show up, dig in, and make a real difference. Your passion and dedication help us grow stronger every day—thank you for being part of the movement!#volunteerweek #americanchestnut

It's time for an update on the Recurrent Genomic Selection (RGS) process. Staff and volunteers, including Hannah and Christine from our Asheville office, have been diligently collecting leaf tissue samples from seedlings produced by our first RGS crosses, which were carried out in the summer of 2024. Last week, each tree was tagged for identification, ensuring accurate tracking throughout the genotyping process. The DNA from these samples will be sequenced, and the resulting data will directly inform and enhance our ongoing breeding program.

#americanchestnut #castaneadentata #americanchestnutfoundation #meadowviewresearchfarms
... See MoreSee Less

Its time for an update on the Recurrent Genomic Selection (RGS) process. Staff and volunteers, including Hannah and Christine from our Asheville office, have been diligently collecting leaf tissue samples from seedlings produced by our first RGS crosses, which were carried out in the summer of 2024. Last week, each tree was tagged for identification, ensuring accurate tracking throughout the genotyping process. The DNA from these samples will be sequenced, and the resulting data will directly inform and enhance our ongoing breeding program.#americanchestnut #castaneadentata #americanchestnutfoundation #meadowviewresearchfarms

Join us tomorrow, Friday, April 18, 2025, from 11:30AM – 1:00PM (EPT), for the next LIVE Chestnut Chat.

Got questions about growing chestnuts or tips to share? Join us for the Chestnut Growers Town Hall! Whether you’re a seasoned grower or just starting, this event is your chance to connect, share insights, and learn from experts. Ask your questions on topics like site selection, soil nutrition, varmint control, and more. Our expert panel will answer questions and share their top growing tips. Don’t miss this opportunity to be part of the chestnut restoration community!

Visit tacf.org/event/chestnut-chat-chestnut-growers-town-hall/ for more info and to register.
... See MoreSee Less

Join us tomorrow, Friday, April 18, 2025, from 11:30AM – 1:00PM (EPT), for the next LIVE Chestnut Chat.Got questions about growing chestnuts or tips to share? Join us for the Chestnut Growers Town Hall! Whether you’re a seasoned grower or just starting, this event is your chance to connect, share insights, and learn from experts. Ask your questions on topics like site selection, soil nutrition, varmint control, and more. Our expert panel will answer questions and share their top growing tips. Don’t miss this opportunity to be part of the chestnut restoration community!Visit https://tacf.org/event/chestnut-chat-chestnut-growers-town-hall/ for more info and to register.
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