Roots Organics Extreme Serene
Best organic kelp supplement for gardeners seeking to boost plant vitality.
Roots Organics Extreme Serene is a potent organic liquid supplement crafted from marine kelp to invigorate plant growth. This easy-to-use formula is designed to boost plant vigor and promote robust development cycles for all gardeners. It integrates seamlessly with any potting soil or hydroponic nutrient program, offering flexibility for diverse cultivation methods. For enhanced results, Extreme Serene is particularly effective when applied as a foliar feed, delivering concentrated nutrients directly to the plant's foliage to maximize vitality and overall development.
$34.00
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-45%
Below average
Package Size
1
/ Gallon
Who it's for
- Users seeking simple integration into existing nutrient feeding schedules
- Growers aiming for higher flower density and oil production
- Organic gardeners prioritizing clean and natural ingredient sources
Who should skip it
- Indoor gardeners sensitive to strong or pungent organic odors
- Busy growers preferring low-maintenance, shelf-stable liquid fertilizers
- Commercial cultivators managing tight budgets for large-scale operations
Performance breakdown
Nutrient Bioavailability
Marine kelp base ensures rapid absorption for immediate plant response.
System Compatibility
Seamlessly integrates into both soil-based and complex hydroponic feeding schedules.
Foliar Efficacy
Highly effective spray application delivers concentrated vitality directly to leaf tissue.
Ease of Application
Liquid concentrate formula simplifies mixing and prevents common dosing errors.
Growth Stimulation
Noticeable boost in vigor during critical vegetative and flowering development cycles.
Organic Purity
Clean, marine-derived ingredients satisfy the needs of strict organic cultivators.
Key Specs
Package Size
1 Gallon
Part Number
ROESG
UPC
609728632380
Fertilizer Type
Kelp Extract
Fertilizer Form
Liquid Concentrate
Organic Source
Application Method
Foliar Spray
Target Plant Type
Vegetables, Flowers, Trees and Shrubs, Houseplants
Features
- Organic liquid kelp extract
- Promotes vigorous plant growth
- Easy-to-use liquid formulation
- Compatible with soil and hydroponics
- Effective as a foliar feed
- Derived from marine kelp
- Supports robust growth cycles
- Enhances plant vitality
What customers say
Users consistently praise this product for delivering superior quality results, particularly during the flowering stage. Many report noticeable increases in density and overall yield, highlighting its reliable effectiveness. Application is straightforward, easily fitting into existing feeding programs. This finisher is trusted to genuinely elevate the final harvest, making it a high performance staple for growers seeking excellent outcomes and improved crop quality.
Know before you buy
Yes, this formula is fully compatible with hydroponic nutrient programs. Because it is a liquid concentrate, it integrates easily into your reservoir without clogging lines.
No, it is highly versatile and works well with both soil and hydroponic setups. It is safe to use on a wide range of plants, including vegetables, flowers, trees, shrubs, and houseplants.
While you can add it to your regular watering routine, applying it as a foliar spray is the most effective method. This allows the plant to absorb the kelp extract directly through its leaves for a quicker boost in vitality.
No, Extreme Serene is a supplement, not a complete fertilizer. It is designed to be used alongside your existing nutrient program to provide an extra boost of organic kelp to support growth cycles.
Roots Organics Extreme Serene is derived from organic marine kelp. It is formulated to provide natural, plant-derived nutrients to support vigorous development.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$34