Our story

We believe the secret to a thriving garden starts underground. At Sunnyside Soil, we make small-batch, premium worm castings, seed starter mix, and worm extract to help local gardeners grow bigger, healthier, more resilient plants — all naturally. We're gardeners first, just like you — and we know firsthand that good soil grows great gardens. Our products are handcrafted, fresh, and full of living biology, not mass-produced or stripped of nutrients like the big brands. Based in Colorado (Zone 5), we specialize in soil solutions built for our climate and conditions — from late frosts to sudden heatwaves. We’re passionate about teaching gardeners how to build soil health, boost plant growth, and garden more successfully with worm power. Whether you're starting your first backyard garden or leveling up your homestead harvest, Sunnyside Soil is here to help you grow from the ground up.