Waltham Fields Community Farm
- Volunteer organization whose mission is to grow produce for soup kitchens, shelters and food pantries, to educate people as to how food is grown, and to preserve the open space and beauty of farms.
- http://www.communityfarms.org/

Waltham Land Trust
- Private, non-profit corporation dedicated to preserving open space. Includes ways to help, events, newsletters, and conservation alternatives.
- http://www.walthamlandtrust.org/

Waltham Farmers Market
- Open Saturdays from late June through October. Includes contact information, directions and photographs.
- http://www.waltham-community.org/FarmersMarket.html

Hardy Pond Association
- Information about the cleaning of Waltham's Hardy Pond.
- http://www.hardypond.org/

Green Rows of Waltham
- Waltham community garden. Includes greenhouse information, driving directions, contact information and photographs.
- http://www.growcommunitygardens.org/