California Spring Trials
California Spring Trials returns this year with exciting new varieties and colors for the 2026-27 year.
Explore California Spring Trials (CAST) 2026
The latest plants and emerging genetics are found along the California coast in March.
California Spring Trials is now managed by the National Garden Bureau. To register, click here. To plan your trip, click here.
We're going to CAST 2026! You can check out everything we see in our live updates from the road.
You can also sign up for coverage directly in your inbox at bit.ly/GardenCenterDaily (from Garden Center) and bit.ly/GMnewsletters (from Greenhouse Management).
California Spring Trials 2026 participating companies include:
Ball Horticultural Company (Ball FloraPlant, Darwin Perennials, Morel, PanAmerican Seed, Selecta One)
Global Plant Source (Cohen Propagation Nurseries, Hishtil, Jaldety, Saad-Assaf Flower Bulbs Nurseries and Nir Nursery)