Indoor gardening experts since 2005 · Machesney Park, IL
Everything you need to grow bigger and someone who can tell you how.
Rockford-area growers come to Grow Big Hydro for lights, nutrients, soils, and ventilation — plus honest advice from a team that has been doing this since 2005.
Product Categories
Substrates & Soils
Plant Nutrients
Ventilation Systems
Seeds & Genetics
Why Grow Big Hydro?
At Grow Big Hydro and Discount Gardening, we go beyond just selling supplies – we’re dedicated to helping our community thrive. Here’s why our customers keep coming back:
Years of Expertise: With nearly two decades of experience serving Machesney Park and the surrounding areas, we know what works best for local gardeners. Our team is equipped with the knowledge and skills to guide you through every step of your growing journey.
Locally Rooted: As a locally owned business, we’re deeply committed to our community. We understand the unique needs of Midwest indoor gardeners and are here to offer advice, support, and top-quality products tailored to your goals.
Passionate, Knowledgeable Staff: Our staff isn’t just here to sell products – we’re here to help you succeed. Each member of our team is passionate about indoor gardening, always ready to offer tips, troubleshoot problems, and make sure you find exactly what you need.
Unmatched Selection: From specialty soils and nutrient-rich substrates to high-performance grow lights and ventilation systems, we carry the largest selection of indoor gardening supplies in the region. Whatever your plants need to thrive, you’ll find it here at Grow Big Hydro.
Experience the difference of shopping with a store that genuinely cares about your success. Visit us today and let’s grow something amazing together!
Frequently Asked Questions (FAQ's)
Brands We Carry
At Twenty20, we have always taken the difficult path, the right path, the path less traveled. Our objective will never be to sell the most seeds but to create the finest product. This is not a race and our goal isn’t to win; our goal is to stand the test of time and maintain our pride and craftsmanship in everything we do. As sure as the sun will rise, we pledge to never release seeds to the public that have not been grown, tested and approved by us. In a world of rapid-fire releases, social media hype and whimsical market demands, we promise to create our own path, march to the beat of our own drum, and always put quality over quantity.
Growing Indoors Doesn't Have To Be Hard...
BuildASoil makes potting soil and teaches an organic system called “The-BuildASoil-Way” so that growers can get really good results at home.
Stop in at Grow Big Hydro and see our selection!
Precision Nutrion for Maximum Yields!
A high-performance nutrient line designed for optimized plant growth, efficient nutrient uptake, and consistent results.
Now available in-store at Grow Big Hydro!
Discover CX Horticulture’s high-performance nutrients.