California Polytechnic State University
Environmental Horticultural Science
Dept. San Luis Obispo, CA 93407
Ph: 805-756-2995
Fax: 805-756-2869
Contact: Virginia
Walter, Ellen
Brack, David
Hanning
The University of California
U. C. Davis Arboretum
One Shields Ave.
Davis, CA 95616-8526
Ph: 530-752-3145
Fax: 530-752-5796
Contact: Ellen Zagory
Website: U.
C. Davis Arboretum
Michigan State University
A240-A Plant & Soil Sciences
East Lansing, MI 48824-1325
Ph: 517-355-6469
Fax: 517-353-0890
Contact: Ann Hancock
Website: Michigan State Perennial Trials
Penn State University
103 Tyson Building
University Park, PA 16802
Ph: 814-865-2571
Fax: 814-863-6139
Contact: Dr. Robert Berghage
E-mail: rdb4@psu.edu
Website: Penn State Trial Gardens
Temple University
Dept. of Landscape Architecture &
Horticulture
580 Meeting House Road
Ambler PA 19002
Ph: 215-283-1294
Contact: Dr. Kim Krahl
University of Vermont
Dept. of Plant & Soil Science
11 Hills Building
Burlington, VT 05405
Ph: 802-656-0479
Contact: Dr. Leonard Perry
Website: Perry's Perennial Pages
University of Washington
Center for Urban Horticulture
Box 354115
3501 N.E. 41st St.
Seattle, WA 98195
Ph: 206-543-8616
Fax: 206-685-2692
Contact: Barbara
Selemon or Fred Hoyt
Website: Center for Urban Horticulture
Denver Botanic Gardens
in conjunction with Colorado State University
909 York St.
Denver, CO 80206-3799
Ph: 720-865-3601
Contact: Chad Brunette
Website: Denver Botanic Gardens
Fort Worth Botanic Gardens
3220 Botanic Gardens Blvd.
Fort Worth, TX 76107
Ph: 817-871-7677
Fax: 817-871-7638
Contact: Steve Huddleston
Hudson Gardens
2888 West Maplewood
Littleton, CO 80120
Ph: 303-797-8565
Contact: Andrew Pierce
Website: Gardening
Colorado
Missouri Botanical Garden
Kemper Center for Home Gardening
4344 Shaw Blvd.
P.O. Box 299
St. Louis MO 63166-0299
Ph: 314-577-9440
Fax: 314-577-9444
Website: Missouri Botanical Garden
Powell Gardens
1609 NW US Hwy 50
Kingsville MO 64061-9000
Ph: 816-697-2600
Fax: 816-697-2619
Website: Powell Gardens
Royal Botanical Gardens
680 Plains Road West
Burlington, Ontario L7T 4H4
Ph: 905-527-1158
Fax: 905-577-0375
Website: Royal Botanical Gardens
