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Plant Trials

Every plant in America is subject to at least one weather- or critter-related problem.
What few gardeners realize, however is that these problems can be avoided by selecting
plants that are more suitable for the specific region you live in. That's where trials
come in!

Trials are the plant industry's way of measuring how well a particular variety will
perform in different parts of the country and evaluating new plant varieties.  There are
two kinds of trials:  University field trials which generally consist of beds where each
plant is grown in a small plot (called a row trial), and public gardens, where plants are
often put in display beds or pots.  Proven Winners sends plant material to both kinds of
trials nationwide, and also conducts their own trials at test sites across North America.

By visiting a trial in your area, you will be able to see how plants perform in an
environment similar to your own.  For instance, if there is a new Verbena that is tolerant
to mildew, gardeners in the Midwest and Southeast would like to know about it. And while all
PW varieties perform well in a range of environments, there will always be some that are
better suited to certain regions than others.

Use our search function to find trial locations in your area where Proven Winner plants
can be viewed and start your journey to a garden that is not only beautiful but also
the longest-lasting!

Refine Search By State

State:  
Auburn University
Auburn University, AL  36849
Open Daily to the public from Dawn to Dusk
For more information please call (334) 844-4862 or visit http://www.ag.auburn.edu/hort/research.html.
Boerner Botanical Garden
9400 Boerner Drive
Hales Corner, WI  53130
Open Daily to the Public 8 a.m. to Dusk, May through October
Admission is Charged http://www.boernerbotanicalgardens.org/
For more information please call 414-257-PARK or visit www.countyparks.com/horticulture.
BYU-Idaho, Thomas E. Ricks Demonstration Garden
500 S. Center St
Rexburg, ID  83460
Located next to the Horticulture Buildings
Open to the public daily, Open House: Aug TBD
For more information please call (208) 496-2012 or visit www.byui.edu/horticulture.
Cathedral of the Pines
10 Hale Hill Road
Rindge, NH  03461
Open Daily to the Public from May to October
http://www.cathedralofthepines.org/
For more information please call 866-229-4520 or visit www.cathedralpines.com.
Chicago Botanic Garden
1000 Lake Cook Rd.
Glencoe, IL  60022
Open Daily to the Public 8 a.m. to Sunset
Free but a Parking Fee is charged. http://www.chicago-botanic.org/
For more information please call 847.835.0972 or visit http://www.chicagobotanic.org/research/research/index.html.
Cincinnati Zoo and Botanical Garden
3400 Vine St.
Cincinnati, OH  45220
Open to the public daily, times vary check the web site
Admission is Charged
For more information please call 1-800-94-HIPPO.
City of Cedar Rapids
4900 Council Street NE
Cedar Rapids, IA  52402
Noelridge Greenhouse
Open to the public Daily
Colorado State University
1401 Remington Street
Fort Collins, CO  80523
Remington Street Park across from the Center for Arts at Colorado State University
Open to the public daily
http://www.flowertrials.colostate.edu/ From I-25: take exit #268 and head west on Prospect Road for 3.8 miles to Remington Street. Turn right (north) on Remington Street and go one block to the intersection of Remington Street and Lake Street; the garden will be on your left. There are also perennial trials to the right, on the east side of Remington Street, in front of the Colorado State University Center for the Arts.
For more information please call 970-491-7019 or visit www.flowertrials.colostate.edu.
Erie Basin Marina
329 Erie Street
Buffalo, NY  14202
Open to the public daily
http://www.eriebasinmarina.org/
For more information please call 716-851-6503.
Green Bay Botanical Garden
2600 Larsen Road
Green Bay, WI  54307
Open to the public daily, check web site for specifics
Admission is Charged
For more information please call 920-490-9457 or visit www.gbbg.org.
Delaware Valley College, Henry Schmieder Arboretum
700 E. Butler Ave.
Doylestown, PA  18901
open to public daily
http://www.delval.edu/Arboretum/ Visitors should check-in at our Security Office upon arrival. The Security Office is located by the college's main entrance off of Route 202. Call for information and guided-tour fee. Greenhouses are open weekdays from 8:30 a.m. to 4:00 p.m.
For more information please call 215-489-2283 or visit www.devalcol.edu/Arboretum/.
Kansas State University
35125 W. 135th St.
Olathe, KS  66061
Open to public May-Sept. M-F 8 a.m. to 4:30 p.m.
http://www.prairiestarflowers.com/
For more information please call 913-856-2335 ext. 100 or visit http://www.prairiestarflowers.com.
Longwood Gardens
1001 Longwood Road
Kennett Square, PA  19348
open to public daily, check web site for times
Admission is Charged. www.longwoodgardens.org
For more information please call 610-388-1000 or visit www.longwoodgardens.org.
Massachusetts Horticultural Society at Elm Bank
900 Washington St (Route 16)
Wellesley, MA  02482
open to public daily
http://www.masshort.org/Directions
For more information please call 617-933-4900 or visit www.masshort.org.
Michigan State University
East Lansing, MI  48824
Next to Plant and Soil Sciences Building, Corner of Wilson and Bogue Street
Open to the public Daily, Limited access November through March
http://www.hrt.msu.edu/gardens/ http://msutrials.ath.cx/ Limited parking is available in the gardens visitor lot, south of the Plant and Soil Sciences building on Bogue Street and Wilson Road. During university business hours (8:00 am to 6:00 pm) parking tokens are required to exit the lot and are available at the Visitor Booth for $3.00. At other times parking is free.
For more information please call (517) 355-5191 ext. 1329 or visit http://www.hrt.msu.edu/gardens/AnnualGarden.htm.
Mississippi State University
2024 Experiment Station Road
Crystal Springs, MS  39059
Truck Crops Branch Experiment Station
Open to the public Daily
Fall Fest Every Year, http://msucares.com/fallfest/
For more information please call 662-325-2110 or visit www.msucares.com.
Missouri Botanic Garden
4344 Shaw Ave.
St. Louis, MO  63110
open to the public daily, check web site for times
Admission is Charged. www.mobot.org
For more information please call 314-577-5143 or visit www.mobot.org.
National Arboretum
3501 New York Ave NE
Washington, DC  20002
Open to the public daily, 8 a.m. to 5 p.m.
No Admission Fee. http://www.usna.usda.gov/
For more information please call 202-245-2726 or visit www.usna.usda.gov.
Norfolk Botanical Garden
6700 Azalea Garden Rd
Norfolk, VA  23518
open to public daily, check web site for times
Admission is Charged. http://www.norfolkbotanicalgarden.org/home
For more information please call 757-441-5830 or visit www.Norfolkbotanicalgarden.org.
North Carolina State, JC Raulston Arboretum
4415 Beryl Rd
Raleigh, NC  27606
University Horticulture Field Laboratory
Open to the public daily, see web site for hours
Peak Trials Viewing is June through August. http://www.ncsu.edu/jcraulstonarboretum/index.php Located in west Raleigh at the NC State University Horticulture Field Laboratory, near the NC State Fairgrounds, two miles west of the NC State University main campus. It is directly across the street from Capitol City Lumber Company.
For more information please call 919-515-3132.
Ohio State University - Columbus
Chadwich Arboretum & Learning Center
Howlett Hall, 2001 Fyffe Court
Columbus, OH  43210
Near Horiculture Buildings
Open to the public daily, Dawn to Dusk
http://chadwickarboretum.osu.edu//
For more information please call 614-292-2011.
Ohio State University Extension - Springfield
4400 Gateway Blvd. , #104
Springfield, OH  45502
Behind Extension Office Building
Open to public daily
Open House: 1st Saturday in August . http://clark.osu.edu/horticulture/field-trial-results
For more information please call 614-292-1868.
Oklahoma State University Botanical Gardens
3425 W. Virginia St.
Stillwater, OK  74078
Open to public daily Monday through Friday, 8 a.m. to 5 p.m.
http://www.osubotanicalgarden.okstate.edu/
For more information please call 405-744-5404 or visit http://home.okstate.edu/Okstate/dasnr/hort/hortlahome.nsf/toc/obgahead.
Penn State
1446 Auction Road
Manheim, PA  17545
Penn State SE Agriculture Research & Extension Center in Landisville
Open to public Monday through Friday 8 to 4:30
http://trialgardens.cas.psu.edu/
For more information please call 814-865-5419 or visit http://research.cas.psu.edu/Landisville/gen_info.htm.
Powell Gardens
1609 Northwest US Hwy 50
Kingsville, MO  64061
Open to the public, see website for seasonal hours
Admission is Charged. http://www.powellgardens.org/
For more information please call 816-697-2600 or visit www.powellgardens.org.
Purdue University
625 Agriculture Mall Drive
West Lafayette, IN  47907
Next to the Horticulture Building at Marstellar Street and the Agricultural Mall
Open to the public daily,
http://www.hort.purdue.edu/ext/hort_gardens.html
For more information please call 765-494-1296 or visit www.hort.purdue.edu/ext/hort_gardens.html.
Rutgers University
New Brunswick, NJ  08903
Donald B. Lacy Display Gardens, on Ryders Lane just off US Route 1
Open to the public Daily; Open House to be scheduled
For more information please call 732-932-8451 or visit http://aesop.rutgers.edu/~rugardens.
San Antonio Botanic Garden
555 Funston Place
San Antonio, TX  78209
Open to the public daily, 9 a.m. to 5 p.m.
Admission is Charged
For more information please call 210-207-3250 or visit www.sabot.org.
Dallas Arboretum
8525 Garland Road
Dallas, TX  75218
On the Southeastern Shore of White Rock Late
Open to the public daily, 9 a.m. to 5 p.m.
Admission is Charged. http://www.dallasplanttrials.org/into.htm
For more information please call 214-515-6500 or visit www.dallasarboretum.org.
Texas A & M - East Texas Bedding Plant Trial
1710N Highway 3053
Overton, TX  75252
Texas A&M University Research and Extension Center
Open Daily to the public, Open House TBA
For more information please call 972-231-5362 or visit http://dallas.tamu.edu/.
Texas A & M - East Texas Bedding Plant Trial
1710 N. Highway 3053
Overton, TX  75684
Texas A&M University Research and Extension Center
Open Daily to the public, Open House TBA
http://overton.tamu.edu/flowers/
For more information please call 903-834-6191 or visit http://overton.tamu.edu/flowers/.
Champaign County Illinois Master Gardener Idea Garden
South Lincoln Avenue
Champaign, IL  61821
Just south of the corner of Florida and Lincoln
Open Daily to the public
http://web.extension.uiuc.edu/champaign/mg/6.html
For more information please call 217-333-7672 or visit http://web.extension.uiuc.edu/champaign/mg/6.html.
University of Florida
Gainesville, FL  32611
Located next to the Horticulture Buildings on Gainesville Campus
Open the the public daily, Open House TBA
For more information please visit http://trialgarden.ifas.ufl.edu/.
University of Georgia
Green Street
Athens, GA  30602
Betty Johnson Horticulture Gardens next to the horticulture greenhouses
Open to public daily. Open House Coincides with SEGH Conference
http://ugatrial.hort.uga.edu/index.cfm/fuseaction/plants.main/index.htm
For more information please call 706- 542-2471 or visit http://ugatrial.hort.uga.edu/.
University of Illinois Hartley Trial Garden
South Lincoln Ave.
Urbana, IL  61801
University of Illinois Arboretum
Open to the public daily, Open House TBA
No Admission Fee.
For more information please call 217-333-7579 or visit www.arboretum.uiuc.edu/gardens.htm.
University of Kentucky Arboretum
500 Alumni Drive
Lexington, KY  40546
University of Kentucky campus near Commonwealth Stadium
Opn to the public daily from dawn to dusk
No Admission Fee http://www.ca.uky.edu/arboretum/
For more information please call 859-257-6955 or visit www.uky.edu/Arboretum/.
University of Maine
Orono, ME  04473
Littlefield Ornamental Trial Garden
Open to the public daily from dawn to dusk
For more information please call 207.581-2948 or visit http://www.umaine.edu/lhc/.
University of Minnesota-St. Paul
Les Bolstad Golf Course
2275 Larpenteur Avenue W
St. Paul, MN  55113
Located next to the Horticulture Science Building
Open daily to the public
http://www.florifacts.umn.edu/trials.html http://www.uofmgolf.com/
For more information please call 612-624-9703 or visit www.florifacts.umn.edu.
University of Minnesota - Grand Rapids
1861 E Hwy 169
Grand Rapids, MN  55744
North Central Research and Outreach Center
Open daily to the public, Horticulture Day August 27th
http://www.florifacts.umn.edu/trials.html http://ncroc.cfans.umn.edu
For more information please call 218-327-4490 or visit http://ncroc.cfans.umn.edu.
University of Minnesota - Morris
46352 State Hwy. #329
Morris, MN  56267
West Central Research & Outreach Center
Open Daily to the public, Horticulture Night TBA
http://www.florifacts.umn.edu/trials.html http://wcroc.cfans.umn.edu
For more information please call 320-589-1711 or visit http://wcroc.cfans.umn.edu.
University of Tennessee - Knoxville
2431 Joe Johnson Drive
Knoxville, TN  37996
Located just off Neyland Drive on the Agriculture Campus
Open Daily to the public from Sunrise to Sunset, Bloom Days June 25-26
http://utgardens.tennessee.edu/ Admission if free to the public
For more information please call 865-946-1138 or visit http://utgardens.tennessee.edu.
Virginia Tech
Washington Street
Blacksburg, VA  24061
On the Virginia Tech Campus
Open to public daily from dawn to dusk
Be sure to get a Visitor's Parking Pass from the VT Visitor's Center on Southgate to display when visiting the gardens weekdays between 8 a.m. and 5 p.m. http://www.hort.vt.edu/hhg/
For more information please call 540-231-5970 or visit www.hort.vt.edu/VTHG/.
American Hosta Growers Association
ANLA Management Clinic
Association of Specialty Cut Flower Growers
Auburn University
Auburn University, AL  36849
Open Daily to the Public
Auburn, Cullum Site
Cullman, AL  35056
From Cullman, travel East on U.S. Highway 278 to Alabama Highway 69. Turn North and travel about 2 miles to Center.
Better Homes and Gardens
Boerner Botanical Garden
9400 Boerner Drive
Hales Corner, WI  53130
Open Daily to the Public
Admission is charged. http://www.boernerbotanicalgardens.org/
Bundesgartenshau in Germany
City of Cedar Rapids
4900 Council Street NE
Cedar Rapids, IA  52402
Noelridge Greenhouse
Open to the public daily.
Chelsea Flower Show
Chesapeake Home Magazine
Chicago Botanic Garden
1000 Lake Cook Road
Glencoe, IL  60022
Open Daily to the Public
Free but a parking fee is charged. http://www.chicago-botanic.org/
Cornell
Bluegrass Lane
Ithaca, NY  14853
Not open to the public except during scheduled events.
http://www.hort.cornell.edu/department/faculty/wmiller/bglannuals/index.html
Delaware Valley College, Henry Schmeider Arboretum
700 East Butler Ave
Doylestown, PA  18901
Open to the public from dawn to dusk, free of charge,
http://www.delval.edu/Arboretum/ Visitors should check-in at our Security Office upon arrival. The Security Office is located by the college's main entrance off of Route 202. Call for information and guided-tour fee. Greenhouses are open weekdays from 8:30 a.m. to 4:00 p.m.
Disney
Trial not open to the public.
Disney Winter Trials
Trial not open to the public.
Dow Gardens
1809 Eastman Ave
Midland, MI  48640
At the corner of Eastman Avenue and West St. Andrews Road in Midland, Michigan.
Open Almost Daily to the Public
http://www.dowgardens.org/ Admission Charged
Far West
FloraStar
Florida Nursery Growers and Landscape Association
Focus Greenhouse Trials
Also known as the Sawaya Garden Trial
Garden Design
Garden Gate Magazine
Great Plant Picks
Grower of the Year Awards, London, England
Heritage Perennials
Home Gardening Club
International Waterlily and Water Gardening Society
Jardin Daniel A. Seguin
3215 rue Sicotte
Saint-Hyacinthe J2S 7B3
Quebec, Canada
Open to the Public Daily
Admission Charged
Louisiana - Hammond Research Station
21549 Old Covington Highway
Hammond, LA  70403
http://www.lsuagcenter.com/en/our_offices/research_stations/Hammond/
Massachusetts Horticultural Society at Elm Bank
900 Washington St (Route 16)
Wellesley, MA  02482
Open to the public daily
http://www.masshort.org/Directions
Midwest Living
Mississippi State University - Fall Trial
2024 Experiment Station Road
Crystal Springs, MS  39059
Truck Crops Branch Experiment Station
Open to the public daily.
Fall Fest Every Year, http://msucares.com/fallfest/
Missouri Botanic Garden
4344 Shaw Ave
St. Louis, MO  63110
Kemper Center
Open Daily to the Public
Admission is Charged. www.mobot.org
Nordic Nurseries
North Carolina State, JC Raultson Arboretum
4415 Beryl Road,
Raleigh, NC  27606
NC State University Horticulture Field Laboratory
Open to the Public Daily
Peak Trials Viewing is June through August. http://www.ncsu.edu/jcraulstonarboretum/index.php Located in west Raleigh at the NC State University Horticulture Field Laboratory, near the NC State Fairgrounds, two miles west of the NC State University main campus. It is directly across the street from Capitol City Lumber Company.
OFA Shortcourse
Ohio State University - Columbus
ChadwicK Arboretum & Learning Gardens
Howlett Hall, 2001 Fyffe Court
Columbus, OH  43210
Near Horitculture Building
Open Daily to the public, dawn to dusk
http://chadwickarboretum.osu.edu
Ohio State University Extension - Springfield
4400 Gateway Boulevard
Springfield, OH  45502
Behind Extension Office Building
Open to the public daily
Open House 1st Saturday in August http://clark.osu.edu/horticulture/field-trial-results
Ohio State University Osteospermum Trial
Oklahoma Greenhouse Growers
Oklahoma State University Botanical Gardens
3425 W. Virginia St
Stillwater, OK  74078
Sunrise to Sunet Daily
http://www.osubotanicalgarden.okstate.edu/
Patriot News Pennsylvania
Pennsylvania Horticultural Society
People, Places and Plants
Perennial Plant Association
Plantarium
Netherlands
Plantec Germany
Royal Boskoop Horticulture Society
Royal Horticulture Society at Wisley Gardens
Salon du Vegetal Exhibition, Angers, France
San Antonio Botanic Garden
555 Funston Place
San Antonia, TX  78209
Open to the public daily
Admission is charged
Smithsonian Institution
The Castle
Washington, DC  20013
Planting around and near The Castle
Open Daily to the Public
http://www.si.edu/
SNO
Society of American Florists
South Coast Botanic Garden
26300 Crenshaw Blvd
Palos Verdes Peninsula, CA  90274
Open Daily to the public
http://www.southcoastbotanicgarden.org/
Texas A & M - East Texas Bedding Plant Trial
1710 N Highway 3053
Overton, TX  75684
Texas A&M University Research & Extension Center
Open daily to the public
http://overton.tamu.edu/flowers/
Turtle Bay
University Laval
Pavillon de Envirotron
2480 Blvd Hochelaga
Quebec, QC  G1V 0A6
Open to the public daily
http://www.ulaval.ca/
University of Florida-Winter Trials
University of Guelph
Ontario Agricultural College
The Arboretum
Guelph, ON  N1G 2W1
Open Daily to the Public
http://www.uoguelph.ca/arboretum/index.htm
University of Illinois-Champaign County Master Gardeners
South Lincoln Ave
Ubrana, IL  61801
The garden is located on south Lincoln Avenue, just south of the corner of Florida and Lincoln.
Open Daily to the Public
No admission Fee. http://web.extension.uiuc.edu/champaign/mg/6.html
University of Minnesota
MN
University of Minnesota - Grand Rapids
1861 E Hwy 169
Grand Rapids, MN  55744
North Central Research and Outreach Center
Open Dialy to the public
http://www.florifacts.umn.edu/trials.html http://ncroc.cfans.umn.edu
University of Minnesota - Morris
46352 State Hwy #329
Morris, MN  56267
West Central Research and Outreach Center
Open daily to the public
http://www.florifacts.umn.edu/trials.html http://wcroc.cfans.umn.edu
University of Minnesota-St. Paul
Les Bolstad Golf Course
2275 Larpenteur Avenue W
St. Paul, MN  55113
Open to the public daily
http://www.uofmgolf.com/ http://www.florifacts.umn.edu/trials.html
University of Wisconsin - Madison
Virginia Tech
Washington Street
Blacksburg, VA  24061
Open to the public daily dawn to dusk
Be sure to get a Visitor's Parking Pass from the VT Visitor's Center on Southgate to display when visiting the gardens weekdays between 8 a.m. and 5 p.m. http://www.hort.vt.edu/hhg/
WeHoP
WeHoP-Anchorage
WeHoP-Fairbanks
Welby Gardens Trials
University of Delaware
College of Agriculture & Natural Resources, Townsend Hall
531 South College Ave
Newark, DE  19716
College of Agriculture & Natural Resources, Townsend Hall
Sunrise to Sunset
Please obtain a visitor parking pass from the Admissions Office at 113 Townsend Hall, accessible through the doors near the Charles Dunham Garden. Web Site: http://ag.udel.edu/udbg/gardens/trial.html
Maywood Estate
53 Cooper Road
Bridgewater, CT  06752
Open once a year during the Garden Conservancy Tours. http://maywoodestate.com/
Oregon State University
OR  97331
Open Daily to the public
Rose Hills International Rose Trials
The trials are held at the Pageant of Roses Garden at Rose Hills Memorial Park outside of Los Angeles.
Linnaeus Teaching Garden
2435 S. Peoria Ave
Tulsa, OK  74114
It is located in the Woodward Park complex due east of the Rose Garden and the Tulsa Garden Center
Tuesday through Saturday 9 am through 4 pm, Sunday 1 to 4 pm, Mother's Day through Labor Day
Ohio Plant Selection Committee
Florall
Belgium
Mail Order Marketing Association
University of Minnesota
University of Tennessee - Jackson
West Tennessee Research and Education Center
605 Airways Blvd.
Jackson, TN  38301
The West Tennessee Research and Education Center is located on U. S. Highway 70 and Airways Boulevard, west of U. S. Highway 45 Bypass in Jackson, TN.
Open 7 days a week from sunrise to sunset
http://westtennessee.tennessee.edu/ornamentals/ Admission if free to the public
Reford Gardens
200, route 132
Grand-Métis, QC  G0J 1Z0
The gardens are open every day from May 31 to October 5
http://www.jardinsmetis.com/english/index.htm The Gardens are located on route 132 in Grand-Métis, on the south shore of the St. Lawrence River, mid-way between Rimouski and Matane. Admission Charged.
Toronto Botanical Garden
777 Lawrence Avenue East
Toronto, ON  M3C 1P2
Open daily dawn to dusk
http://www.torontobotanicalgarden.ca/
University of Wyoming
Sheridan Research and Extension Center
663 Wyarno Rd.
Sheridan, WY  82801-9619
Open to the Public
Perennial Trials only.
Morton Arboretum
4100 Illinois Route 53
Lisle, IL  60532
Open to the public daily
Admission Charged. http://www.mortonarb.org/
Mast Arboretum
Steven F. Austin State University
Wilson Drive
Nacogdoches, TX  75962
Open Daily to the Public
http://ag.sfasu.edu/index.php?option=com_content&task=blogcategory&id=9&Itemid=30
The Oregon Garden
879 W. Main St
Silverton, OR  97381
Open Daily to the Public
http://www.oregongarden.org/ Admission Charged
University of Florida - Fort Lauderdale
Fort Lauderdale Research and Education Center
3205 College Ave.
Davie, FL  33314
Open Daily to the Public
http://flrec.ifas.ufl.edu/trial_garden/index.shtml
Cornell-Long Island
3059 Sound Avenue
Riverhead, NY  11901
The trials are always open during business hours
http://ccesuffolk.org/long-island-trial-gardens/ The trials are always open during business hours; please check in at the office before you head out to the trials.