Gardenvisit.com: Sacred Gardens
- The historical development of religious and spiritual gardens.
- http://www.gardenvisit.com/garden_history/sacred_gardens/sacred_gardens.htm

ABC Radio National: The Spirit of Gardens
- Transcript of a program that explored the spirit of gardens in Zen Buddhism, Christianity, and the Baha’i Faith.
- http://www.abc.net.au/rn/relig/enc/stories/s609210.htm

Paradise on Earth: Historical Gardens of the Middle East
- Article by Safei El-Deen Hamed on Islamic garden elements and design concepts. Includes references.
- http://ag.arizona.edu/OALS/ALN/aln36/Hamed.html

BBC World Service: A Place in Paradise
- Audio tour, with sacred garden expert Martin Palmer, of Buddhist, Christian, and Islamic gardens in Britain.
- http://www.bbc.co.uk/worldservice/people/features/place_in_paradise/

Mary's Gardens
- Pennsylvania organization dedicated to gardens honoring Virgin Mary. Articles on many topics including plants to use, home and parish Mary gardens, and prayer and meditation in the garden.
- http://www.mgardens.org/