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APPENDIX

Online Information Resources

• USDA Natural Resources Conservation Service – this Web site allows you to search the database by either scientific name or the common name of various plants as well as by location. http://plants.usda.gov/checklist.html

• The Virginia Tech Department of Forest Resources and Environmental Conservation offers a database that allows you to search for information on various trees. You can search by the location or by hardiness zone. www.cnr.vt.edu/dendro/dendrology/factsheets.cfm

• The online version of the Audubon Field Guide series is available at http://enature.com. This is an excellent resource for looking up various information on most plants.

• Texas A & M University and Bioinformatics Working Group have complied a vascular plant image library that offers photos of most North American plants http://botany.csdl.tamu.edu/FLORA/gallery.htm

• The University of Wisconsin also offers an excellent resource with their Wisconsin State Herbarium specimen database at www.botany.wisc.edu/wisflora/

• This Web site lets you to search the University of Connecticut Plant Database for various trees, shrubs, and vines that you might be researching www.hort.uconn.edu/fmi/xsl/search.xsl

• North Carolina State University provides information on various plants as well as information about what plants will attract butterflies. www.ces.ncsu.edu/depts/hort/consumer/factsheets/

• An easy-to-understand garden insectary from Eartheasy.com is available at www.eartheasy.com/grow_garden_insectary.htm

Resources for Frost Dates and Hardiness Zones

• The U.S. National Arboretum has a hyperlinked map showing the hardiness zones across North America at www.usna.usda.gov/Hardzone/ushzmap.html

• For plant hardiness zones in Canada specifically, Agriculture and Agri-Food Canada offer a series of maps at http://sis.agr.gc.ca/cansis/nsdb/climate/hardiness/intro.html

• The Old Farmer’s Almanac offers charts showing the last and first frost dates by area In the United States at www.almanac.com/content/frost-chart-united-states and for Canadian locations at www.almanac.com/content/frost-chart-canada

Online Resources for Nursery Stocks and Seeds

There are many good sources available on the Internet to purchase gardening supplies. Some that are the easiest to use include:

• Gardeners Network – this site offers bulbs, flowers, nursery stock as well as being a go-to place for information on growing various plants www.gardenersnet.com/flower.htm

• Territorial Seeds – this is another great online supplier of seeds, plants, and insects. www.territorialseed.com/

• Diane’s Flower Seeds – Diane Linsley runs two Web sites; one for her seeds and the other for her daylilies. She prides herself on the quality of her product, the rare perennials, heirloom flower and tomato seeds www.dianeseeds.com/Index.html

• GardeningPlaces.com — this site offers a directory of online seed catalogues. On the home page, you can choose the type of online catalogues you want to look at www.gardeningplaces.com/index.htm

• Heirloom Vegetable Gardener’s Assistant — this site offers an excellent listing of heirloom seed companies at www.halcyon.com/tmend/links.htm

• Some other favorites for buying seeds include:

– Burpee seeds and plants at www.burpee.com

– Stokes Seeds at www.stokeseeds.com

– Henry Field’s Seed & Nursery Co. at www.henryfields.ca

– Vesey’s Seeds offers both a U.S. Web site at www.veseys.com and Canadian Web site at www.veseys.com/ca/en

– Richters for seeds and plants at www.richters.com

Recommended Reading

Here are few other book titles on companion gardening to consider:

• Carr, Anna, Good Neighbors: Companion Planting for Gardeners, Emmaus, PA: Rodale Press 1995.

• Cunningham, Sally Jean, Great Garden Companions, A Companion-Planting System for a Beautiful, Chemical-free Vegetable Garden, Emmaus, Pennsylvania: Rodale Press 1998.

• Little, Brenda, Secrets of Companion Planting: Plants that Help, Plants that Hurt, Sandy, Utah: Silverleaf Press 2008.

• Lord, Tony, Encyclopedia of Planting Combinations, Buffalo, New York: Firefly Books (USA) Inc. 2008.

• Phillips, Ellen, Rodale’s Illustrated Encyclopedia of Perennials, Emmaus, Pennsylvania: Rodale Press 1993.

• Riotte, Louise, Carrots Love Tomatoes: Secrets of Companion Planting for Successful Gardening, North Adams, MA: Storey Publishing Ltd. 1998.

• Riotte, Louse, Roses Love Garlic, North Adams, MA: Storey Publications 1998.