GARDENING/ORGANIC GARDENING 

http://www.icangarden.com  

GREENROOF INFORMATION AND RESOUCES

www.greenroofs.com  General information/resources for greenroofs

www.xeroflora.com   Information on vegetative mat system

Greenroof resources for Portland, OR

NURSERIES/INFORMATION

www.cactus-mall.com    The Cactus Mall-  A website listing Cactus/Succulent Nurseries and information sources.

http://www.usna.usda.gov/Hardzone/ushzmap.html   USDA hardiness zone map

www.sedumphotos.net  A great site for Sedum lovers.

SOCIETIES/ORGANIZATIONS 

www.cssainc.org         The Cactus and Succulent Society of America

www.nargs.org   The North American Rock Garden Society

www.cactus-mall.com/sedum/      The Sedum Society

SEARCH ENGINES/DIRECTORIES

http://www.agsites.net  A huge agriculture & outdoor world link directory