Your Crop's Best Season
Starts With the Right Supply.
From seed selection to harvest-ready, 4 Seasons Ag delivers the products, expertise, and dependable service that keep South Dakota farms productive — every season.
What We Offer
Products Built for the Field
Everything you need to plant smart, grow strong, and harvest with confidence — all under one roof.
Seed
High-performance seed varieties selected for South Dakota conditions — corn, soybeans, and more.
Fertilizer
Balanced nutrient programs — dry, liquid, and specialty — to match your soil's actual needs.
Crop Protection
Herbicides, fungicides, and insecticides from leading brands to protect your investment.
Farm Supplies
Essential supplies from application equipment to safety gear — the tools you rely on every day.
Soil Testing
Know your ground. Accurate soil analysis to guide smarter nutrient and management decisions.
Harvest & Storage
Grain handling, storage solutions, and drying supplies to protect your harvest from field to market.
Why Choose Us
Built on Trust.
Driven by Results.
We're not a national chain with a call center. We're your neighbors — and your crop's success is our reputation on the line.
Locally Owned, Locally Rooted
Herrick is home. We understand this soil, this climate, and the realities of farming in our part of South Dakota.
Season-Ready, Every Season
Spring planting through fall harvest — we're stocked, prepared, and available when you need us most.
Expert Guidance, Not Sales Pressure
We recommend what actually works for your operation — not what moves the most inventory.
Our Services
More Than a Supply Store
We go beyond the counter — providing the knowledge and support that turns a good season into a great one.
Crop Consultation
Personalized recommendations on seed choices, nutrient programs, and pest management for your specific fields.
Soil Analysis
Professional soil sampling and interpretation to build fertilizer plans that maximize yield potential.
Custom Mixing
Blended fertilizer and specialty mixes formulated to your crop's exact nutrient requirements.
Dealer Support
We partner with leading agricultural brands to bring you factory-backed products with local service.
About Us
Agriculture Is in Our Soil.
4 Seasons Ag, Inc. was founded on a simple belief: that farmers deserve a supply partner who understands the land they work and the communities they belong to.
Based in Herrick, South Dakota, we serve producers across the region with a full line of agricultural products — from seed and fertilizer to crop protection and farm supplies.
Our approach is straightforward. We stock quality products from trusted manufacturers, offer honest recommendations, and show up when it matters. No gimmicks, no corporate overhead — just dependable service season after season.
Ready to Grow This Season?
Stop by, give us a call, or send an email. We're here to help you make this your best year yet.
Get in Touch
Let's Talk About Your Operation
Whether you need a quote, have a question about products, or want to discuss your next season's plan — we're ready to help.
