Austin Fern and Cycad Society
- Includes meeting and membership information.
- http://www.main.org/cycadfern/

The Texas State Bonsai Exhibit
- Includes information about the project as well as ways to help, a newsletter, and contact details.
- http://www.ttsbe.org/

South Austin Community Garden
- Located in South Austin at the Salvation Army Community Center. Site includes map, meeting times, and an overview of the garden's projects and organic policy.
- http://www.main.org/sacgarden/

Useful Wild Plants
- Organization working on an encyclopedia of botany and requesting help from the public. Includes membership information, a quiz about plants, volunteer opportunities, and a newsletter.
- http://www.usefulwildplants.org/

Sustainable Food Center
- Local organic gardening news, educational programs, composting classes, volunteer possibilities and gardening tips.
- http://www.sustainablefoodcenter.org/

Native Plant Society of Texas: Austin Chapter
- Promotes the conservation, research, and utilization of the native plants and plant habitats of Texas through education, outreach, and example. Includes a list of projects, mailing list, volunteer opportunities, and a mailing list.
- http://www.npsot.org/Austin/

Garden Club of Austin
- Primarily a charitable, scientific, and educational organization. Site includes meeting schedule, a list of activities, and membership information.
- http://www.main.org/tgcoaustin/

The Green Corn Project
- Non-profit organization that builds organic food gardens at the homes of Austin residents. Includes newsletters, how to get involved, and a list of resources.
- http://www.greencornproject.org/

Austin Organic Gardeners
- Membership and meeting schedule, listing of local farmer's markets and growers, Austin area planting guide, and organic gardening news and information.
- http://www.main.org/aog/

Austin Herb Society
- Encourages the growth and use of herbs, educates the public regarding the benefits of herbs, and provides support to community gardens and libraries. Site includes newsletters, calendar of events, and a list of sponsors.
- http://www.austinherbsociety.org/

Austin Bonsai Society
- Calendar of events, local bonsai resources, membership information and application.
- http://www.main.org/bonsai/

Austin Cactus and Succulent Society
- Includes meeting and membership information.
- http://www.main.org/cacti/