Rockefeller Park Greenhouse
- City Greenhouse includes information about displays, volunteer information, photos, and arrangements for renting the facility.
- http://www.rockefellergreenhouse.org/

Sustainable Communities Symposium
- Brings groups together to promote collaborative efforts on environmental issues and to heighten community awareness of the implications of population growth and urban sprawl.
- http://www.scs2000.org/

ParkWorks
- Works to lead, promote, and facilitate creative programs and projects which enhance the economic strength and quality of life in Cleveland.
- http://www.parkworks.org/

Cleveland Botanical Garden
- Offers ten beautifully landscaped acres that are home to many different formal and natural gardens. Includes list of exhibits and schedule.
- http://www.cbgarden.org/