Ready to order?

Contact our team

Organic Boost leads the way

Organic Boost is a complete soil and plant food crafted entirely from BioGro certified products – including fishmeal and humates for soil biology and natural phosphate, potassium and magnesium.

Our innovative new Organic Boost also carries the BioGro seal of approval – New Zealand’s highest standard in organic certification.

We developed Organic Boost to be the perfect multi-purpose organic fertiliser for fruits, vegetables and pasture. Organic Boost will not only deliver the nutrients that your plants require, but also protects and encourage soil’s natural biodiversity.

Now you can grow vegetables packed with natural flavour, better nurture your fruit trees to bare nutritious fruit and nourish your farmland so your stock grazes on sweeter pasture.

At Fertco, we believe that bumper growth and environmental sustainability can exist hand in hand, and this 100% organic fertiliser is just one more step in that direction.

Available in 8kg, 25kg, 500kg & 1000kg bags.    


N 2.5 P 3.49 K 3.36 S 4.41 Mg 2.76 Ca 10

Application Rates

Pasture 250 – 300kg per hectare
Fruit trees 1 – 2kg per tree
Vegetables 100gm per m2 to three times per year


Image result for Bio-Gro logo


Other key organic fertiliser products

On-Farm Testing & Organic Services

Free on-farm consultation, soil and plant tissue testing and n organic fertiliser programme tailor-made for your farm…

Read More


Fishmeal is an excellent source of nitrogen and is also fully BioGro certified.

Fishmeal contains approximately 63% protein and is biologically broken down into plant available nitrogen.

Read More


A rich source of phosphate, Guano is derived from the nutrient-rich deposits of seabirds…

Read More


Finely ground limestone used primarily as a treatment to reduce soil acidity.

Read More


A slow-release phosphate fertiliser ideal for maintaining levels of phosphate in the soil…

Read More


An all-natural fertiliser that provides both calcium and sulphur, fast-acting and pH neutral.

Read More

Sulphate of Potash

Sulphate of Potash (or Potassium Sulphate) supplies two key plant nutrients – potassium and sulphur.

Read More

Muriate of Potash

Muriate of Potash (or Potassium Chloride) is the most commonly used and cost-effective source of potassium in agriculture.

Read More

Elemental Sulphur Prills

Leading the way in soil-sulphur replenishment. Cost-effective, 100% available in the year you apply it, and a dream to use.

Read More


Kieserite (otherwise known as magnesium sulphate) is an effective source of both magnesium and sulphur.

Read More


A completely natural source of both magnesium and lime…

Read More


Nature’s own super compost, providing a long list of benefits that add up to increased crop growth, quality and yield.

Read More

Organic Boost

A complete soil and plant food, BioGro certified. Organic fertiliser packed with the nutrients soil and plants need.

Read More