🧪 Decades in the making. Engineered for results.
Heavy 16 isn’t just another nutrient line — it’s the product of a lifelong obsession with plant science, agricultural chemistry, and horticultural efficiency. Born in the gardens of Southern California and refined with careful field testing, our formulas were originally developed to meet the real-world demands of high-performance growers.
Every product in the Heavy 16 lineup was built from the ground up with:
⚗️ Pharmaceutical-grade raw materials for superior uptake
🧬 Multi-path nutrient delivery systems for redundancy and resilience
🧫 Micro-batch production for full-spectrum quality control
🧠Intelligent ratios of macro/micronutrients, chelators, and biological co-factors
We spent years field-testing with top-tier California farmers — tuning and retuning until every bottle was dialed for maximum translocation, consistency, and performance.
The result? A lean, efficient, highly concentrated nutrient system that gives you all the complexity of modern plant science — in a format that’s easy to run, easy to scale, and ridiculously effective in flower.
We don’t do hype. We do real R&D — and the difference is in the yield 🤌
#HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY #HEAVY16Stacks
🔥 GROW YOUR FIRE FROM ROOT TO HARVEST 🔥
If you’re chasing big buds and bold flavor, HEAVY Fire is your go-to from the last week of veg all the way through flower. This powerful bloom stimulator blends premium PK with essential bloom-phase nutrients to drive explosive flower formation and ripening 🌱➡️💥
Start early, ramp gradually, and let Heavy Fire fuel your plants through every stage of bloom — from pre-flower stretch to the final push before harvest. Expect dense flowers, vibrant aroma, and results that speak for themselves 🚀
Whether you’re running soil, hydro, coco, or anything in between, Heavy Fire fits seamlessly into any grow system. Your fire’s just waiting to be lit 🔥
#HEAVY16 #HEAVY16Nutrients #HEAVY16Fire #HEAVYFire #PK #PKBooster #Flowering #GetBigGetHEAVY #GrowWithHEAVY #HEAVY16Stacks
Feed your rhizosphere the way it deserves! 🌱💥
HEAVY ROOTS is a next-gen additive that hits every angle of root development—packed with multiple functions in one bottle, minus the hormones that can drag down yield or quality.
Root promoter âś… Root protector âś… Drip system cleaner âś… Anti-precipitate âś…
All-in-one, no fluff.
From clone to the final flush, add ROOTS first to your reservoir at just 1mL per gallon before your usual nutrients—and watch the magic happen. The real power? It’s in the root hairs—those delicate, fluffy white zones that do the heavy lifting when it comes to water and nutrient uptake. ROOTS boosts both the size and number of these absorption powerhouses, expanding the root zone like crazy and unlocking faster, more vigorous growth from the inside out.
More root hairs = more uptake = healthier, more resilient plants ready to perform.
Let your roots do the talking! 🗣️
#HEAVYRoots #HEAVY16 #HEAVY16Nutrients #HEAVY16Stacks #GetBigGetHEAVY #GrowWithHEAVY #Rhizosphere #RootGrowth
HEAVY FINISH isn’t just a flush — it’s a final transformation 💧
Designed as the last step in your cultivation cycle, HEAVY FINISH brings a scientific edge to your soil’s natural purity. By acting as both an electron donor and receptor, it restores electrochemical balance at the molecular level, creating a cleaner, more bioavailable root zone.
💧 Its natural chelating structures are lab-enhanced to achieve a uniform molecular size — unlocking peak performance from your nutrient program, even in previously imbalanced or overfed soils.
⚖️ With extreme buffering capacity across pH and EC/PPM, HEAVY FINISH helps neutralize the risk of heavy metals and poorly formulated regimens that may still be lurking at the finish line.
🌿 Inspired by the traditions of fine viticulture, HEAVY FINISH reveals the full terroir of your soil. Used during flower senescence, expect the deepest expressions of aroma, color, and oil your genetics are capable of.
Whether you pair it with Heavy Prime or keep it minimalist with pure water, HEAVY FINISH is your key to unlocking elite, expressive harvests — the kind that speak for themselves.
Finish HEAVY đź’Ş
#HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #HEAVYFinish #Finish #Flush #BigGrowerPreferred #GrowWithHEAVY
Wishing you a fun, safe, and spark-filled 4th of July! 🇺🇸
From our HEAVY family to yours — enjoy the holiday! 🎆🎇
#4thOfJuly #IndependenceDay2025
🎙️ Catch one of our very own HEAVY 16 reps live on the mic!
Jason recently joined @levelup_gardening on their Facebook Live for a 25-minute giveaway and grow talk session—full of great insight, laughs, and heavy-hitting plant knowledge.
… but stay tuned: after the live, they kept it rolling for an extended sit-down that’ll drop soon on LevelUp’s YouTube channel!
Check out @levelup_gardening’s Facebook page to see our initial chat and keep an eye out for more soon on their YouTube channel! 👊
#HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
Don’t let your plants go without the good stuff. 🌱

Hit up our Retail Locator to find a store near you:

👉 heavy16.com/retailers
Can’t find your favorite shop on the map?

Drop their name and location in the comments — we’ll reach out and bring the Heavy their way. 💪🧪
#HEAVY16 #HEAVY16Nutrients #GrowWithHEAVY #BigGrowerPreferred #GetBigGetHEAVY
Want your flower to stand out in a sea of green? 🤌
It starts with flavor, aroma, and resin-rich potency—and that’s exactly where HEAVY 16 PRIME shines. 🌺🔥
PRIME is a powerhouse microbial feed and sweetener, crafted to elevate oil production, boost brix levels (hello sweetness + density), and bring out those unique terpene expressions that set your cultivar apart. 🍇🍋🍊
While it doesn’t contain live microbes itself, PRIME supercharges the effectiveness of your microbial inoculants, compost teas, and enriched media. It’s the missing link that brings everything together, feeding the underground life that fuels explosive above-ground quality. 🌱⚡️
Use it through the entire life cycle to dial in plant performance, push genetic potential, and unlock flavor profiles that hit like no other. Taste, smell, potency—PRIME makes sure they’re unforgettable.
#Heavy16 #FlavorMatters #TerpsMatter #HEAVY16Nutrients #HEAVYPrime #Prime #Flavor #GrowWithHEAVY #BigGrowerPreferred #HEAVY16Stacks
HEAVY FOLIAR is Liquid Gold 🏆
Foliar feeding isn’t just hype—it’s science. When you spray nutrients directly onto the leaf surface, plants can absorb them up to 10x more efficiently than through their roots. Why? Because leaf tissue has tiny pores (stomata) that can take in dissolved minerals almost instantly, bypassing the slower, soil-based uptake process.
But that’s not all.
Foliar feeding doesn’t just benefit the leaves—it kickstarts activity underground too. When plants photosynthesize more efficiently due to optimal nutrition, they release more carbohydrates into the root zone. These sugars act as food for beneficial microbes, helping them multiply and thrive, which in turn makes even more nutrients available to your plants.
The result?
• Improved micronutrient delivery
• Enhanced microbial life in the soil
• Stronger roots
• And ultimately—bigger, better yields
That’s why foliar feeding with HEAVY Foliar is a win-win—for your plants, your soil, and your harvest.
👉 Check out our full foliar directions here: https://www.heavy16.com/foliar-directions
#HEAVY16 #HEAVY16Nutrients #HEAVYFoliar #Foliar #FoliarFeeding #FoliarSpray #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
It all starts here 🌿🚀
HEAVY VEG A & B were born from years of hands-on plant production and advanced nutrient chemistry. Their purpose? To kickstart the development of larger vascular systems and strong structural integrity—so your crops are ready to bear heavy fruit come bloom time.
It’s important to remember: both overfeeding and underfeeding can quietly harm your plants and microbes, even if everything looks fine. HEAVY16’s balanced formulas are designed to correct those hidden imbalances, giving you the freedom to push your grow creatively while staying buffered and stable.
These powerful veg nutrients are built for high-demand cropping systems, focusing on cellular structure and tissue strength at the molecular level—from leaves to shoots to roots. When minerals are missing during key developmental phases, you get microscopic weak spots. That’s why we say: it’s all about the Veg. And HEAVY16 Veg A & B are our way of backing that up.
If you’re aiming for vigorous, healthy plants with massive root mass and rock-solid structure, start from day one with HEAVY16 Veg A & B—whether it’s for your crop material or mother stock. Build it right from the beginning 🌿
#HEAVY16 #HEAVY16Nutrients #HEAVY16Veg #HEAVY16VegAB #Veg #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY #CascadingDelivery #HEAVY16Stacks
