Heavy 16 Veg & Bud A/B Gallons + Free Booster Pack




Nurture your garden with some of the most effective nutrients money can buy, Heavy 16!

Formulated using only high-quality ingredients and designed to meet a plant’s natural needs, Heavy 16 Nutrients set a new standard for growing performance. Heavy 16 Veg and Bud are produced in the Dutch two-part style for ease of use and ability to harness complex blends. These base nutrients have been honed by years of data and founded on a balance between farming wisdom, proprietary ingredients, and agricultural technology. Order today and receive a free Heavy Additives Sample Pack!


  • Veg A: 4-0-1
    Veg B: 1-2-5
  • Bud A: 2-0-3
    Bud B: 1-3-6
  • Prime: 0-0-3
  • Fire: 1-10-16
  • Finish: 0-0-1
  • Roots: 0.7-1-2
  • Foliar: 1-0-2

Out of stock

Your Garden's Success is our #1 Priority

HTG Supply is committed to providing you with the very best products, pricing and service in the industry. We will ship your order fast and discreetly packaged to protect your privacy. Buy with confidence knowing your HTG Supply purchase includes simple returns as well as lifetime product support. Call our team of real growing experts with your purchasing or product use questions, and we will be here to help!

See it for less somewhere else? Give us a call and we’ll beat any online competitor’s price!

Customer Service:  1-866-710-GROW (4769) | sales@htgsupply.com | Hours: Mon-Fri 9:00 a.m. to 5:00 p.m.


The Full Heavy 16 Experience

SPECIAL LIMITED TIME OFFER! Get a full set of sample-sized Heavy 16’s amazing additives with your purchase of a Heavy 16 Full Base Nutrient Kit*. Heavy 16’s line of nutrients are designed to target every aspect of your plant’s biological processes to improve their effeciency and maximize your yield. Heavy Roots pumps up your rhizosphere and gives your plants’ roots the biggest, strongest root hairs possible to ensure the best uptake of water and nutrients. Heavy Prime feeds the microbial life that your plant relies on to seek out, break down, and transport minerals. Heavy Fire kicks your plant’s transition from vegetative growth to blooming, flowering, and fruiting into overdrive by continuously providing the phosphorus needed to make a multitude of quality flowering sites. Heavy Foliar bolsters your plant’s cell walls to strengthen an improve their efficiency, leading to a serious increase in photosynthetic activity and resilience to environmental stress. Heavy Finish is a full, plant-wide flush of all unnecessary traces of nutrients, which purifies your plant in its final stage of development.

*Special offer – valid online only.

Included Items:


Heavy 16 Official Feed Schedule

Derived From

Veg A – calcium nitrate, potassium nitrate, iron DTPA, calcium acetate, calcium gluconate, calcium chloride, urea, ammonium nitrate, sodium molybdate
Veg B – monopotassium phosphate, magnesium nitrate, magnesium sulfate, potassium nitrate, potassium sulfate

Bud A – calcium nitrate, potassium nitrate, iron DTPA, iron EDDHA, calcium acetate, calcium gluconate, calcium chloride, sodium molybdate
Bud B – monopotassium phosphate, magnesium nitrate, magnesium sulfate, potassium nitrate, potassium sulfate

Prime – potassium sulfate

Fire – ammonium polyphosphate, potassium polyphosphate, phosphoric acid, potassium hydroxide, potassium sulfate, kelp (ascophyllum nodosum), kelp (laminaria japonica), medicago sativa (alfalfa extract)

Finish – potassium sulfate

Roots – ammonium nitrate and potassium polyphosphate

Foliar – potassium nitrate, calcium acetate, calcium nitrate, calcium gluconate, calcium chloride, magnesium nitrate, magnesium chloride, magnesium acetate, ferric nitrate, zinc nitrate, and boric acid.

Offer valid online only.

Weight 40 lbs


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