FORMULA
In the extreme climatic conditions of the Arctic Sea.

FORMULA
In the extreme climatic conditions of the Arctic Sea.
Immersed in the extraordinary pureness of crystal waters.

Immersed in the extraordinary pureness of crystal waters.
Grows kelp with an eternal ability to regenerate itself.

Grows kelp with an eternal ability to regenerate itself.
Able to activate, revive and heal plants.

Able to activate, revive
and heal plants.
A sea treasure.
We believe the ocean is a remarkable resource. Norwegian sea kelp, in particular, captured our imagination. With its eternal ability to regenerate itself, its nutritious properties and the powerful way it renews root growth, it is a proven organic root booster to maximize root function and achieve optimum harvests in hydroponic systems.
A sea treasure.
We believe the ocean is a remarkable resource. Norwegian sea kelp, in particular, captured our imagination. With its eternal ability to regenerate itself, its nutritious properties and the powerful way it renews root growth, it is a proven organic root booster to maximize root function and achieve optimum harvests in hydroponic systems.
Borne from the sea.
For the discerning craftsman.
Reiziger Root Booster has the reassurance of being used by many professional gardeners and growers for over 20 years to activate, revive and stimulate indoor hydroponic plants, outdoor plants, seedlings, trees, flowers, bulbs, natives and more. This nutrient-rich, organic root stimulator has the power to save, revive or help newly potted plants and transplants, grow early white healthy roots, give more uniformity and improve survivability resulting in greener, vigorous plant growth and abundant new flowers.

Powerful. Pure. Bioactive.
This kelp is harvested sustainably from the coldest and cleanest tidal waters, its essence distilled and fermented gently with the simplest and purest natural ingredients. It’s the distillation that that makes the difference between a good organic root stimulant and a small sensation, originating from the age-old art of fermentation. The resulting highly potent broth, rich in bioactive stimulants and B vitamins, has the ability to produce astonishing results. In a brief time, roots become healthy, nutrient uptake is improved and plant growth rates and yields are maximised.

Powerful. Pure. Bioactive.
This kelp is harvested sustainably from the coldest and cleanest tidal waters, its essence distilled and fermented gently with the simplest and purest natural ingredients. It’s the distillation that that makes the difference between a good organic root stimulant and a small sensation, originating from the age-old art of fermentation. The resulting highly potent broth, rich in bioactive stimulants and B vitamins, has the ability to produce astonishing results. In a brief time, roots become healthy, nutrient uptake is improved and plant growth rates and yields are maximised.



Feed your plants a tried and tested root stimulant recipe.
Everything we do is grounded in a history of more than 30 years of formulating fertilisers to a traditional recipe. Sworn by Dutch craftsmen for decades, Reiziger Root Booster’s exclusive bioactive blend with naturally derived ingredients gives a quick boost for plants to get them off to the best start. This craftsman favourite can now be a winner in your garden too.

Guaranteed Analysis. This section of the label lists all nutrients guaranteed in the product. It is divided into the percentage of total nitrogen, available phosphate, soluble potassium and a statement of each secondary plant nutrient present in the formula.
View the Guaranteed Analysis >
Derived From. Every label of Reiziger fertiliser shows a Derived from statement, which is a listing of the actual ingredients that constitute the primary and secondary plant nutrients used to make the formulation.
View the ingredients list >0.6 – 0.2 – 0.6
NPK Analysis. These numbers indicate the percentages of the three primary plant nutrients in Reiziger Root Booster. This ratio has been found to be an excellent formula for all short cycle strains of fruiting and flowering plants.
Learn more about what NPK means >
Guaranteed Analysis
This section of the label lists all nutrients guaranteed in the product. It is divided into the percentage of total nitrogen, available phosphate, soluble potassium and a statement of each secondary plant nutrient present in the formula.
View the Guaranteed Analysis >
Derived from
Every label of Reiziger fertiliser shows a Derived from statement, which is a listing of the actual ingredients that constitute the primary and secondary plant nutrients used to make the formulation.
View the ingredients list >0.6 – 0.2 – 0.6
NPK Analysis
These numbers indicate the percentages of the three primary plant nutrients in our Reiziger Root Booster. This ratio has been found to be an excellent formula for all short cycle strains of fruiting and flowering plants.
Learn more about what NPK means >
Root Booster
Guaranteed AnalysisTotal Nitrogen (N) 0.6%
0.6% Water Soluble Nitrogen
Available Phosphate (P205) 0.2%
Soluble Potash (K20) 0.6%
Root Booster
IngredientsKelp
They indicate the percentages of the three primary plant nutrients in Reiziger Root Booster. This ratio has been found to be an excellent formula for all short cycle strains of fruiting and flowering plants.
NITROGEN: Nitrogen (N) is a major element in plant nutrition, promoting rapid growth, leaf formation and green colouring.
AVAILABLE PHOSPHATE: Available Phosphate is the source of Phosphorus (P) which is essential for a strong root system, heavier more potent flowers and overall growth. It also hastens maturity plus increases yield and vitamin content in plants.
SOLUBLE POTASH: Soluble Potash is the source of Potassium (K) which is a catalyst for many plant functions. It helps form strong stems, improves colour, provides starches and oils and reduces water needs. Potassium is essential for cell division and balances the effects of excess nitrogen and calcium.
