Plant Trials

Substrate drenches for CEA crops
Collate 2L (21.7% ethephon) from Fine Americas is now labeled for substrate drench application, giving U.S. greenhouse growers a new option for precise plant growth regulation. This added precision can reduce labor inputs by minimizing... more »

2025 AAS Display Garden Landscape Design Challenge winners announced
All-America Selections (AAS) recently announced the winners of its 2025 Landscape Design Challenge embraced education this year with a theme of “S.T.E.A.M. … Using AAS Winners.” For the challenge, AAS provided the gardens with recent... more »
BioWorks hires Bill Rietkerk as senior biological solutions advisor
BioWorks recently announce the appointment of Bill Rietkerk as senior biological solutions advisor for horticulture. In this role, he will lead BioWorks’ continued expansion within California’s horticulture market. Prior to joining BioWorks, Rietkerk built and... more »

Danziger announces top trial varieties for North America
A summer filled with excessive heat and record rainfalls provided challenging growing conditions at many trial locations across North America. Trial managers and attendees noted several standouts including these new Danziger 2026 introductions and noteworthy... more »

Dümmen Orange highlights top performers from 2025 summer trial season
As Dümmen Orange wraps up its summer trials season in North America, these annuals and perennials represent the best in class for color, habit and overall garden performance. These selections rose to the top across... more »

International Plant Trialing Conference releases full program for 2025
After a 10-year break, the Plant Trialing Conference will return from Oct. 13-15, 2025, offering updated insights and education. The full program for this event is now available here. The event will be held at... more »

AAS opens entries for 2026-2029 perennial trial
All-America Selections is now accepting entries for its 2026-2029 Perennial Trial. Plant breeders are invited to submit new perennial varieties to be tested over three winters at trial sites across North America. The trial offers... more »
BioWorks adds research associate to boost trials
BioWorks has appointed Glen Stevens as research and development associate, bringing more than 20 years of experience in biological control, soil health and sustainable agriculture. He will work from BioWorks’ lab and greenhouse at the... more »
Plantpeddler showcases 1500 varieties at 2025 event
Plantpeddler hosted Variety Day 2025 on Aug. 1 in Cresco, Iowa, featuring more than 1,500 varieties of vegetative annuals from breeders around the world. The trial gardens included large containers, hanging baskets and beds, with... more »
MSU Extension 2025 fields days schedule
Michigan State University AgBioResearch and MSU Extension, in collaboration with Michigan’s agricultural commodity groups, will host field days statewide from May through September 2025. These events will feature research updates, resources and strategies for growers... more »









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