Soil Nutrients
Soil nutrients for every growing style — certified organic lines, living soil inputs and mineral feeds from Green Planet, Professor's, CANNA and House & Garden. Grower-tested and shipped Australia-wide from our Tasmanian warehouse.
Soil Nutrients for Organic, Living and Mineral Grows
Certified Organic Soil Nutrients
Run a clean organic feed with Professor's certified organic Grow, Bloom and Boost formulas, or push flavour with Terpene Gold and Ozi Magic Monsta Bud. Proper certified inputs, not just "natural" marketing.
Living Soil Biology That Does the Work
Stock your root zone with Mykos mycorrhizae, Azos nitrogen-fixing bacteria and BioMega's Trichfecta+ — our best seller in this range. Healthy microbes mean better uptake from the same feed.
Set-and-Forget Granular Feeds for Outdoor Grows
Green Planet's Back Country Blend range is slow-release granular nutrition made for remote and outdoor plots — dig it in at planting and top-dress through the season. Mineral growers are covered too, with CANNA Terra and House & Garden Soil A&B.
Growing in something other than soil? Browse all hydroponic nutrients, or go straight to coco nutrients, run to waste nutrients and recirculating nutrients.
FAQs
Can I use hydroponic nutrients in soil?
Yes — many mineral lines feed soil-grown plants well, but dedicated soil formulas like House & Garden Soil A&B and CANNA Terra are balanced for soil pH and biology, so you get more consistent results.
What's the difference between organic and mineral soil nutrients?
Organic nutrients feed the soil life that then feeds your plant, while mineral nutrients supply salts the roots take up directly. Organic favours flavour and soil health; mineral gives faster, more precise control.
Do I need separate veg and flower nutrients for soil?
Yes — most soil ranges split into a grow formula for vegetative growth and a bloom formula for flowering, with different N-P-K ratios for each stage.
Welcome to The Grow Guys
We built The Grow Guys from the soil up — well, coco and perlite. Before we sold gear, we bought it, ran it, and learned the hard way what's worth the money and what ends up in the shed. That's the filter everything on our shelves passes through. No sales scripts, no rebadged junk, no telling you what you want to hear. Just gear we'd run ourselves and advice from people who actually grow. Chasing higher yields, tighter flowers, or your first harvest? You're in the right place.
FAQs
Calculated at checkout by weight and destination. Free shipping over $499*.
Order by 2pm and it ships the same business day from Invermay, Tasmania.
500+ products across 40+ brands, every one filtered through 14 years of real growing experience. Shipping Australia-wide.
30-day change-of-mind returns on unopened, unused products. A 10% restocking fee applies and return shipping is at your cost.
Call, email, or walk into the Invermay shop. You'll get a grower on the other end, not a script.