Hydrofarm
Heavy 16 Roots
Best root booster for growers seeking healthier, more resilient plant development.
Heavy 16 Roots is a revolutionary plant additive designed to significantly enhance the rhizosphere. This powerful 3-in-1 formula acts as a root growth enhancer, drip cleaner, and anti-precipitate agent, all in one simple, hormone-free product. It promotes the branching of lateral roots and dramatically increases the quantity and size of fragile root hairs, crucial for maximum water and nutrient absorption. By fostering a healthier, more extensive root mass, Heavy Roots ensures faster, integrated plant growth and builds resilience from cloning through harvest.
$58.00
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4300
#50 in Fertilizers
Price vs Category Average
-6%
Below average
Package Size
1
/ pt
Who it's for
- Commercial growers prioritizing massive root mass and plant vigor
- Serious gardeners seeking maximum nutrient uptake and robust growth
- Botanists needing quick recovery from transplant shock or stress
Who should skip it
- Novice growers intimidated by complex, precise feeding schedules
- Budget-conscious hobbyists looking for cost-effective nutrient solutions
- Hydroponic users wanting to avoid frequent reservoir maintenance
Performance breakdown
Root development
Rapidly expands root hair density for superior nutrient uptake.
System maintenance
Prevents mineral buildup to keep irrigation lines flowing freely.
Feeding efficiency
Highly concentrated formula minimizes waste and simplifies complex feeding schedules.
Nutrient compatibility
Prevents precipitation to ensure stable, bioavailable nutrient delivery.
Growth acceleration
Dramatically shortens the time required for robust vegetative establishment.
Ease of application
Simple dilution rates make professional-grade results accessible for home growers.
Key Specs
Package Size
1 pt
Application Rate
1mL per gallon
Function
Root growth enhancer, drip cleaner, anti-precipitate
Usage Window
Cloning phase until the last week before harvest
Form
Liquid Concentrate
Fertilizer Type
Additive
Fertilizer Source
Synthetic
Application Method
Soil Drench
Features
- Enhances root hair quantity and size
- Promotes faster, integrated plant growth
- Increases plant resilience via nutrient uptake
- Simplifies feeding schedules
- Cleans drip systems
- Prevents nutrient precipitation
- Supports greater root mass
- Improves overall plant nutrition
What customers say
Heavy 16 Roots is consistently praised for its exceptional quality and effectiveness in promoting robust root development. Users report rapid and vigorous growth, noting how easily the additive integrates into their feeding routines. The noticeable results translate to healthier plants and improved yields, making it a trusted choice for successful cultivation. While it represents a premium investment, customers feel the superior performance fully justifies the cost, establishing it as a valuable foundation for growers seeking optimal results.
Know before you buy
Heavy 16 Roots serves three primary functions: it stimulates lateral root branching and hair growth, prevents nutrient buildup in your irrigation lines, and acts as an anti-precipitate agent to keep your nutrient solution stable.
Yes, it is designed for use from the cloning phase all the way through to the final week before harvest.
No, Heavy 16 Roots is a hormone-free formula that relies on its synthetic composition to naturally encourage root development and nutrient uptake.
The standard application rate is 1mL per gallon of water. Because it is a concentrated liquid, ensure you mix it thoroughly into your reservoir or watering can.
Yes, one of its core functions is to act as a drip cleaner. It helps prevent nutrient precipitation, which is the primary cause of clogs in irrigation lines and emitters.
While it is primarily applied as a soil drench, its water-soluble formula makes it compatible with various growing media, including hydroponic systems where drip cleaning is beneficial.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$58