
Interested in helping out? Upcoming group collections include:
October 3, 2009 - Cub Run RECenter, Chantilly, VA
October 10, 2009 - Arlington National Cemetery, Arlington, VA
October 10, 2009 - Apple Festival at Tayamentasachta Center for Environmental Studies, Greencastle, PA
October 10, 2009 - Bear Branch Nature Center at Hashawha Environmental Center, Westminster, MD
Check the Growing Native website to register, to get more details, and to check for recently added events.

You can collect seeds from your own yard, or anywhere else that you can get permission: try churches, cemeteries, parking lots, historical monuments, and local parks. (However, the restrictions against removing any material from National Park Service land include tree seeds, even for a good cause). This information sheet has more on what they're looking for -- basically sorted, viable seeds from healthy trees. And only certain species:
- Atlantic white cedar
- Bald cypress
- Oaks: black, chestnut, chinkapin, northern red, southern red, swamp white, overcup, pin, water, willow, white
- Black walnut
- Green ash & White ash
- Hazelnut
- Pawpaw
- Persimmon
- Sassafras
- Swamp chestnut
- Yellow/Tulip poplar
Until we get around to writing up posts on all these trees (!), see the Growing Native field guide for more information about each one and what its seed looks like. What a great opportunity to learn a little tree identification this fall!
Like the photos in this post? Mouse over for credits; a click takes you to the photographer on Flickr.