Independent Ag Supply for Kansas, Missouri & Colorado Farmers
Seed • Fertilizer • Crop Protection • Biologicals
Who We Serve
Focus On growers who
manage the farm by the acre
Run regenerative or conventional operations
Are tired of overpriced, limited vendor options
Trusted brands, real performance
More Than Supply. A Partnership for Generations
What you get
Long-term ROI from field-proven products
Both bulk liquid and dry formulations
Local, direct support whenever you need it
Empowering Your Fields
About Sundown AgriSupply
Founded in 2022 by Matthew Gerritzen, Sundown AgriSupply offers flexible, field-proven inputs without the big-retailer limitations. With 20+ years in production ag, Matt brings hands-on insight to help producers—large or small—make smarter decisions that pay off.
working with us
Why Sundown
Flexible Product Options
Choose what fits your farm—not what’s pushed by a sales rep.
Real-World Agronomic Experience
Advice backed by 20+ years in production agriculture.
You’ll Talk to Matt, Not a Call Center
Direct support from someone who knows your acres.
Kansas-Based, Field-Tested
Locally proven products, trusted by Midwest growers.