H16-web-banner-price-drop-alert
H16-web-banner
H16-web-banner-Fire
H16-web-banner-Roots
previous arrow
next arrow
NUTRIENT CALCULATOR
FOLIAR DIRECTIONS
Become a Retailer

Interested in selling HEAVY 16 products at your store?

RETAILER SIGN-UP
Newsletter Signup

Stay up to date on the latest and greatest at HEAVY 16!

NEWSLETTER SIGN-UP

HEAVY 16 PROFESSIONAL PLANT NUTRIENTS PROVIDE GROWERS WITH A STREAMLINED AND POTENT SYSTEM FOR ACHIEVING THE MOST DEMANDING AGRICULTURAL GOALS.

PREMIUM RAW INGREDIENTS

COMPLEX FORMULATION

ARTISANAL MICRO-BATCH BLENDING

COMPLEX FORMULAS. SIMPLE APPLICATION. PREMIUM RESULTS.

See All Heavy 16 Products

Follow Heavy 16 on Instagram
  • Bringing the flavor with HEAVY PRIME 🍭🍓 Top-shelf flower 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 ALL unforgettable 🤘 #Heavy16 #FlavorMatters #TerpsMatter #HEAVY16Nutrients #HEAVYPrime #Prime #Flavor #GrowWithHEAVY #BigGrowerPreferred #HEAVY16Stacks
  • Getting started with HEAVY is easy as ever ✌️ Head over to our website, where we have our nutrient calculator, foliar directions, and a number of frequently asked questions so you can hit the ground running with HEAVY 16! 🤜🤛 #HEAVY16 #HEAVY16Nutrients #NutrientCalculator #HEAVYOnScienceLightOnPrice #GetBigGetHEAVY #BigGrowerPreferred
  • Need some tips on how to use HEAVY Foliar? You came to the right place! 📝 HEAVY FOLIAR is highly versatile and can be used alone or with other products. Mixing HEAVY FOLIAR with HEAVY ROOTS and HEAVY FIRE allows a for a comprehensive nutritional delivery in both phases of plant development. HEAVY FOLIAR can be mixed with pesticides, fungicides, soaps or oils. We recommend spraying every three days for optimal nutrition uptake. If you prefer to spray every day, we recommend using the HEAVY FOLIAR recipe at half strength. For best results, spray your crop from seedling up until the fourth week on flowering crops. Please note that there is no need to adjust the pH of the FOLIAR formula after mixing, but that FOLIAR should be sprayed within three days of mixing! 🌿 Mix HEAVY FOLIAR with water, adding HEAVY16 Products in order as listed on the schedule on our website 🌿 Lightly mist plants every 3 days during foliar periods. Avoid drenching foliage. 🌿 You can spray HEAVY FOLIAR lights on or off; our recommendation is to spray at first light. 🌿 Do not adjust pH of FOLIAR mixture. 🌿 Use FOLIAR mixture within 3 days of dilution with water. 🌿 An oily sheen on leaves is normal. #HEAVYFoliar #FoliarSpray #HEAVY16 #HEAVY16Nutrients #GrowWithHEAVY #HEAVY16Stacks #Foliar #BigGrowerPreferred
  • No need to pH when you’re running HEAVY 💪 PRIME, our centerpiece, sets the pH for you via complex organic acids! If your water source is roughly between 5.5 and 8.0 on pH scale, PRIME’s complexion will naturally titrate pH, eliminating the need for hard acids in the garden 🌱 One less step in your routine so that you can spend time where it matters most! 😎 #HEAVY16 #HEAVY16Official #TheMoreYouKnow #GrowYourOwn #BigYields #CascadingDelivery #BigGrowerPreferred #GrowWithHEAVY #AskHEAVY #TeachMeHowToHEAVY
  • Why no Air Stones? 🫧 We prefer to avoid continuously churning and bubbling HEAVY 16 reservoirs to preserve the fine organic acids that, if over-stimulated, will volatilize quickly and lead to a rapid pH rise when holding a reservoir for more than a few days 🌱 If biology is used in the reservoir, artificial churning and oxygenating will exacerbate the situation as most bacteria create hydroxide (pH up) as a byproduct of heightened metabolism - which is promoted via air stones, etc. Additionally, most air pumps that power air stones draw in large amounts of CO2 from the room, which creates carbonic acid and lowers the pH 💨 To oxygenate correctly, simply leave a submersible pump at the bottom of the reservoir to break the surface tension and prevent stagnation. Your media or system should have more than enough aeration to functioning optimally 🫧💧 #HEAVY16 #BigGrowerPreferred #TeachMeHowToHEAVY #HEAVY16Stacks #TheMoreYouKnow
  • FINISH is the final statement! 🌿 This all-natural bio-regulator transforms water at the molecular level, making it more active and able to penetrate deeply into soil and media. It balances electrochemistry by donating and receiving electrons, unlocking the full expression of your crop’s genetics 🧬 Use it in your final week to reclaim tired soils, buffer EC and pH, and purge out residual salts or heavy metals from sub-par regimens. Its natural chelating structures are lab-refined to a uniform size that cleans far deeper than typical finishing products 💦 Expect deeper color, heavier oils, and richer aromatics during flower senescence — the kind of results that elevate good runs into great ones. Some growers pair it with Heavy Prime for extra terp lift, others run it solo with pure water for a clean, powerful finish 🔥 However you use it, Heavy Finish is your go-to for the final flush that actually finishes. 💧🌱 #HeavyFinish #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY #Indoor #Outdoor #Flush #FinalFlush
  • Don’t forget HEAVY16 can be used on seedlings and cuts! 🌱 Found in the first column of our feed cards, or at https://www.heavy16.com/nutrient- calculator/. As shown, values are per gallon. You can pretreat with this solution for increased success rates during propagation as well as feed your freshly rooted seedlings or cuts! 🌿 #ROOTS will promote root development while stopping pythium and other possible infections in its tracks! Less damping off... more growing up! Once rooting has started the low levels of our VEG base will help maintain growth, eliminating the nutritional stress in that transition for the little ones. #HEAVY16 #HEAVY16Nutrients #HEAVY16Roots #HEAVY16Veg #HEAVY16Finish #GrowWithHEAVY #BigGrowerPreferred
  • HEAVY results no matter what style of grow you have 🔥 We built HEAVY 16 for growers who want results without overcomplicating things. From small home gardens to full-scale grows, our clean, balanced formulas support strong roots, healthy plants, and consistent performance wherever you grow. Repping HEAVY wherever the road takes us. 🌱🚚 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
  • Huge thanks to @indoorgardens for putting up their new HEAVY 16 rack 🙌 @indoorgardens_cleveland Indoor Gardens continues to rep HEAVY across their Ohio locations, and we truly appreciate the support. If you’re a grower in Ohio looking for everything you need — from nutrients and lighting to media, equipment, and expert advice: Indoor Gardens has you covered ✌️ Swing by, pick up some HEAVY, and get dialed for your next run 💪🌱 #Heavy16 #Heavy16Nutrients #IndoorGardens #GrowWithHEAVY #Ohio
  • Happy New Year HEAVY family! 🎇🎆 Another year goes by and another year ends with us reflecting on how much we appreciate your continued support — we couldn’t do it without ya! Here’s to HEAVY harvests in 2026! 👊 #Heavy16 #Heavy16Nutrients #NewYear #2026
@heavy16official
@heavy16official
•
Follow
Bringing the flavor with HEAVY PRIME 🍭🍓 Top-shelf flower 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 ALL unforgettable 🤘 #Heavy16 #FlavorMatters #TerpsMatter #HEAVY16Nutrients #HEAVYPrime #Prime #Flavor #GrowWithHEAVY #BigGrowerPreferred #HEAVY16Stacks
22 hours ago
View on Instagram |
1/10
@heavy16official
@heavy16official
•
Follow
Getting started with HEAVY is easy as ever ✌️ Head over to our website, where we have our nutrient calculator, foliar directions, and a number of frequently asked questions so you can hit the ground running with HEAVY 16! 🤜🤛 #HEAVY16 #HEAVY16Nutrients #NutrientCalculator #HEAVYOnScienceLightOnPrice #GetBigGetHEAVY #BigGrowerPreferred
4 days ago
View on Instagram |
2/10
Need some tips on how to use HEAVY Foliar? You came to the right place! 📝 HEAVY FOLIAR is highly versatile and can be used alone or with other products. Mixing HEAVY FOLIAR with HEAVY ROOTS and HEAVY FIRE allows a for a comprehensive nutritional delivery in both phases of plant development. HEAVY FOLIAR can be mixed with pesticides, fungicides, soaps or oils. We recommend spraying every three days for optimal nutrition uptake. If you prefer to spray every day, we recommend using the HEAVY FOLIAR recipe at half strength. For best results, spray your crop from seedling up until the fourth week on flowering crops. Please note that there is no need to adjust the pH of the FOLIAR formula after mixing, but that FOLIAR should be sprayed within three days of mixing! 🌿 Mix HEAVY FOLIAR with water, adding HEAVY16 Products in order as listed on the schedule on our website 🌿 Lightly mist plants every 3 days during foliar periods. Avoid drenching foliage. 🌿 You can spray HEAVY FOLIAR lights on or off; our recommendation is to spray at first light. 🌿 Do not adjust pH of FOLIAR mixture. 🌿 Use FOLIAR mixture within 3 days of dilution with water. 🌿 An oily sheen on leaves is normal. #HEAVYFoliar #FoliarSpray #HEAVY16 #HEAVY16Nutrients #GrowWithHEAVY #HEAVY16Stacks #Foliar #BigGrowerPreferred
@heavy16official
@heavy16official
•
Follow
Need some tips on how to use HEAVY Foliar? You came to the right place! 📝 HEAVY FOLIAR is highly versatile and can be used alone or with other products. Mixing HEAVY FOLIAR with HEAVY ROOTS and HEAVY FIRE allows a for a comprehensive nutritional delivery in both phases of plant development. HEAVY FOLIAR can be mixed with pesticides, fungicides, soaps or oils. We recommend spraying every three days for optimal nutrition uptake. If you prefer to spray every day, we recommend using the HEAVY FOLIAR recipe at half strength. For best results, spray your crop from seedling up until the fourth week on flowering crops. Please note that there is no need to adjust the pH of the FOLIAR formula after mixing, but that FOLIAR should be sprayed within three days of mixing! 🌿 Mix HEAVY FOLIAR with water, adding HEAVY16 Products in order as listed on the schedule on our website 🌿 Lightly mist plants every 3 days during foliar periods. Avoid drenching foliage. 🌿 You can spray HEAVY FOLIAR lights on or off; our recommendation is to spray at first light. 🌿 Do not adjust pH of FOLIAR mixture. 🌿 Use FOLIAR mixture within 3 days of dilution with water. 🌿 An oily sheen on leaves is normal. #HEAVYFoliar #FoliarSpray #HEAVY16 #HEAVY16Nutrients #GrowWithHEAVY #HEAVY16Stacks #Foliar #BigGrowerPreferred
6 days ago
View on Instagram |
3/10
No need to pH when you’re running HEAVY 💪 PRIME, our centerpiece, sets the pH for you via complex organic acids! If your water source is roughly between 5.5 and 8.0 on pH scale, PRIME’s complexion will naturally titrate pH, eliminating the need for hard acids in the garden 🌱 One less step in your routine so that you can spend time where it matters most! 😎 #HEAVY16 #HEAVY16Official #TheMoreYouKnow #GrowYourOwn #BigYields #CascadingDelivery #BigGrowerPreferred #GrowWithHEAVY #AskHEAVY #TeachMeHowToHEAVY
@heavy16official
@heavy16official
•
Follow
No need to pH when you’re running HEAVY 💪 PRIME, our centerpiece, sets the pH for you via complex organic acids! If your water source is roughly between 5.5 and 8.0 on pH scale, PRIME’s complexion will naturally titrate pH, eliminating the need for hard acids in the garden 🌱 One less step in your routine so that you can spend time where it matters most! 😎 #HEAVY16 #HEAVY16Official #TheMoreYouKnow #GrowYourOwn #BigYields #CascadingDelivery #BigGrowerPreferred #GrowWithHEAVY #AskHEAVY #TeachMeHowToHEAVY
1 week ago
View on Instagram |
4/10
Why no Air Stones? 🫧 We prefer to avoid continuously churning and bubbling HEAVY 16 reservoirs to preserve the fine organic acids that, if over-stimulated, will volatilize quickly and lead to a rapid pH rise when holding a reservoir for more than a few days 🌱 If biology is used in the reservoir, artificial churning and oxygenating will exacerbate the situation as most bacteria create hydroxide (pH up) as a byproduct of heightened metabolism - which is promoted via air stones, etc. Additionally, most air pumps that power air stones draw in large amounts of CO2 from the room, which creates carbonic acid and lowers the pH 💨 To oxygenate correctly, simply leave a submersible pump at the bottom of the reservoir to break the surface tension and prevent stagnation. Your media or system should have more than enough aeration to functioning optimally 🫧💧 #HEAVY16 #BigGrowerPreferred #TeachMeHowToHEAVY #HEAVY16Stacks #TheMoreYouKnow
@heavy16official
@heavy16official
•
Follow
Why no Air Stones? 🫧 We prefer to avoid continuously churning and bubbling HEAVY 16 reservoirs to preserve the fine organic acids that, if over-stimulated, will volatilize quickly and lead to a rapid pH rise when holding a reservoir for more than a few days 🌱 If biology is used in the reservoir, artificial churning and oxygenating will exacerbate the situation as most bacteria create hydroxide (pH up) as a byproduct of heightened metabolism - which is promoted via air stones, etc. Additionally, most air pumps that power air stones draw in large amounts of CO2 from the room, which creates carbonic acid and lowers the pH 💨 To oxygenate correctly, simply leave a submersible pump at the bottom of the reservoir to break the surface tension and prevent stagnation. Your media or system should have more than enough aeration to functioning optimally 🫧💧 #HEAVY16 #BigGrowerPreferred #TeachMeHowToHEAVY #HEAVY16Stacks #TheMoreYouKnow
2 weeks ago
View on Instagram |
5/10
@heavy16official
@heavy16official
•
Follow
FINISH is the final statement! 🌿 This all-natural bio-regulator transforms water at the molecular level, making it more active and able to penetrate deeply into soil and media. It balances electrochemistry by donating and receiving electrons, unlocking the full expression of your crop’s genetics 🧬 Use it in your final week to reclaim tired soils, buffer EC and pH, and purge out residual salts or heavy metals from sub-par regimens. Its natural chelating structures are lab-refined to a uniform size that cleans far deeper than typical finishing products 💦 Expect deeper color, heavier oils, and richer aromatics during flower senescence — the kind of results that elevate good runs into great ones. Some growers pair it with Heavy Prime for extra terp lift, others run it solo with pure water for a clean, powerful finish 🔥 However you use it, Heavy Finish is your go-to for the final flush that actually finishes. 💧🌱 #HeavyFinish #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY #Indoor #Outdoor #Flush #FinalFlush
2 weeks ago
View on Instagram |
6/10
Don’t forget HEAVY16 can be used on seedlings and cuts! 🌱 Found in the first column of our feed cards, or at https://www.heavy16.com/nutrient- calculator/. As shown, values are per gallon. You can pretreat with this solution for increased success rates during propagation as well as feed your freshly rooted seedlings or cuts! 🌿 #ROOTS will promote root development while stopping pythium and other possible infections in its tracks! Less damping off... more growing up! Once rooting has started the low levels of our VEG base will help maintain growth, eliminating the nutritional stress in that transition for the little ones. #HEAVY16 #HEAVY16Nutrients #HEAVY16Roots #HEAVY16Veg #HEAVY16Finish #GrowWithHEAVY #BigGrowerPreferred
@heavy16official
@heavy16official
•
Follow
Don’t forget HEAVY16 can be used on seedlings and cuts! 🌱 Found in the first column of our feed cards, or at https://www.heavy16.com/nutrient- calculator/. As shown, values are per gallon. You can pretreat with this solution for increased success rates during propagation as well as feed your freshly rooted seedlings or cuts! 🌿 #ROOTS will promote root development while stopping pythium and other possible infections in its tracks! Less damping off... more growing up! Once rooting has started the low levels of our VEG base will help maintain growth, eliminating the nutritional stress in that transition for the little ones. #HEAVY16 #HEAVY16Nutrients #HEAVY16Roots #HEAVY16Veg #HEAVY16Finish #GrowWithHEAVY #BigGrowerPreferred
3 weeks ago
View on Instagram |
7/10
HEAVY results no matter what style of grow you have 🔥 We built HEAVY 16 for growers who want results without overcomplicating things. From small home gardens to full-scale grows, our clean, balanced formulas support strong roots, healthy plants, and consistent performance wherever you grow. Repping HEAVY wherever the road takes us. 🌱🚚 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
@heavy16official
@heavy16official
•
Follow
HEAVY results no matter what style of grow you have 🔥 We built HEAVY 16 for growers who want results without overcomplicating things. From small home gardens to full-scale grows, our clean, balanced formulas support strong roots, healthy plants, and consistent performance wherever you grow. Repping HEAVY wherever the road takes us. 🌱🚚 #HEAVY16 #HEAVY16Nutrients #GetBigGetHEAVY #BigGrowerPreferred #GrowWithHEAVY
3 weeks ago
View on Instagram |
8/10
Huge thanks to @indoorgardens for putting up their new HEAVY 16 rack 🙌 @indoorgardens_cleveland Indoor Gardens continues to rep HEAVY across their Ohio locations, and we truly appreciate the support. If you’re a grower in Ohio looking for everything you need — from nutrients and lighting to media, equipment, and expert advice: Indoor Gardens has you covered ✌️ Swing by, pick up some HEAVY, and get dialed for your next run 💪🌱 #Heavy16 #Heavy16Nutrients #IndoorGardens #GrowWithHEAVY #Ohio
@heavy16official
@heavy16official
•
Follow
Huge thanks to @indoorgardens for putting up their new HEAVY 16 rack 🙌 @indoorgardens_cleveland Indoor Gardens continues to rep HEAVY across their Ohio locations, and we truly appreciate the support. If you’re a grower in Ohio looking for everything you need — from nutrients and lighting to media, equipment, and expert advice: Indoor Gardens has you covered ✌️ Swing by, pick up some HEAVY, and get dialed for your next run 💪🌱 #Heavy16 #Heavy16Nutrients #IndoorGardens #GrowWithHEAVY #Ohio
3 weeks ago
View on Instagram |
9/10
Happy New Year HEAVY family! 🎇🎆 Another year goes by and another year ends with us reflecting on how much we appreciate your continued support — we couldn’t do it without ya! Here’s to HEAVY harvests in 2026! 👊 #Heavy16 #Heavy16Nutrients #NewYear #2026
@heavy16official
@heavy16official
•
Follow
Happy New Year HEAVY family! 🎇🎆 Another year goes by and another year ends with us reflecting on how much we appreciate your continued support — we couldn’t do it without ya! Here’s to HEAVY harvests in 2026! 👊 #Heavy16 #Heavy16Nutrients #NewYear #2026
4 weeks ago
View on Instagram |
10/10

FIND YOUR LOCAL HEAVY 16 RETAILER

Find a retailer

QUESTIONS? COMMENTS?

Contact Us
Copyright © 2026 Heavy 16. All rights reserved