Annual Flower Trial Garden - Colorado State University

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Operated by Colorado State University, the Annual Flower Trial Garden in Fort Collins is more than just a pretty place—it's a working research garden showcasing the beauty and resilience of flowering plants in Colorado’s challenging climate. Free and open to the public, it’s a favorite spot for flower lovers, researchers, photographers, and curious visitors alike.

Recommended For

Garden Enthusiasts: Wander among vibrant annuals and see what thrives in Colorado’s sunny, shifting seasons.

Students & Educators: Learn about plant science and environmental adaptation in a real-world setting.

Event Planners & Romantics: Host your special occasion at the garden’s charming Gazebo for a botanical backdrop.

What to Expect

Location: Colorado State University, 1401 Remington St, Fort Collins, CO 80523
Size: 2.9 acres with 20,000 square feet of floral bedding area
Focus: Horticultural testing of annual and perennial varieties under Rocky Mountain conditions
Open Season: Annuals bloom late May through October; pansies bloom in early spring

Highlights

Plant Trials: Colorful rows of flowers tested for performance, durability, and visual appeal
Educational Mission: A living classroom for CSU students, horticulturists, and the community
Historic Roots: Began as a Pansy Trial program in 2003 led by Dr. Klett and David Staats
Colorful Design: Plants are arranged by genus and color to allow easy comparison and stunning views

Visitor Tips

Bring a Camera: The garden’s vibrant displays are a dream for photographers
Time Your Visit: Late spring through fall is peak bloom—perfect for a scenic stroll
Consider an Event: Book the gazebo for weddings, graduations, or special celebrations
Explore Fort Collins: Pair your visit with stops at Horsetooth Mountain or local museums

Contact & Hours