Most store bought soil conditioners are largely water. Our highly soluble, Australian made formulas have no fillers, just add your own water. You’re paying for pure minerals, seaweed extract, and active nutrients, not diluted liquid. Better value, lower shipping cost, and higher nutrient density per gram.
Because your garden
deserves better
Just add water. The ultimate root booster!
This premium soluble blend of Fulvic Acid and Ascophyllum nodosum kelp flakes is designed to support strong root development and healthy plant growth. It assists with nutrient uptake and promotes vigorous foliage, flowering, and soil microbial activity. Suitable for use on lawns, gardens, and ornamentals, this natural formulation can be mixed easily with water for foliar or soil application.
APPLICATION RATES:
One 600g packet mixes with 300L of water!
For veggie gardens:
Add 4g per Litre of water.
For Lawns:
Add 2g per Litre of water.
Measure the required amount into a watering can or gardening sprayer.
Slowly add water while stirring or shaking until the mix is evenly dispersed.
Apply about 1 litre of solution per 1 to 10 square metres.
Before using fertiliser, seek agronomical advice due to climatic/soil conditions, application methods, irrigation & agricultural practices being beyond the control of Nesty Boxes and cannot be foreseen. Nesty Boxes accepts no responsibility whatsoever for any commercial damage, loss or other results following the use of this product. The buyer accepts & uses the product subject to these conditions.
Typical Composition:
Fulvic Acid & Ascophyllum nodosum kelp flakes.
Potassium (K₂O) approximately 10%.
Organic carbon approximately 25%.
Trace elements includes iron, manganese, zinc, copper, boron, and others naturally present.
We offer a wide range of natural, Australian made fertilisers and it is no surprise it can get tricky deciding which one is right for you. If you are looking for a liquid fertiliser, the Soil Tonic will help stimulate root growth and development more so than the Soil Revival which focuses on soil pH and health. Our biologically activated rock mineral fertilisers purpose is best represented by the packaging. Soil Fusion is our all rounder and best multi purpose choice. Soil Bloom works amazingly on fruit trees and vegetables. Lawn Booster is for turf and acreage.
Why choose Nesty Boxes fertilisers over competitors?
Nesty Boxes formulations are built on science, agronomy, and real field results. Every product is developed with input from agronomists and garden specialists to ensure it delivers genuine, measurable plant and soil benefits. We are Australian owned and operate locally, sourcing our rock minerals from Western Australia, our calcium carbonate from New South Wales, and using Australian ingredients wherever possible. Unlike many competitors selling synthetic, water heavy or quick fix fertilisers, Nesty focuses on long term soil health. Our products support microbial activity, improve soil structure, and deliver sustained nutrient availability rather than short lived chemical spikes. With Nesty, you’re feeding the soil as well as the plant, a foundation for healthier, more resilient gardens.
What is soil tonic?
Soil Tonic is a premium soluble blend of fulvic acid, Ascophyllum nodosum kelp flakes, potassium, organic carbon, and naturally occurring trace elements. It mixes instantly with water and can be applied as a soil drench or foliar spray.
What do the nutrients in Soil Tonic actually help with?
Fulvic Acid Improves nutrient uptake and transport Enhances root efficiency and nutrient exchange Helps plants access bound minerals in the soil Ascophyllum nodosum Kelp Contains natural plant hormones that stimulate growth Supports stress tolerance, root expansion, and recovery Feeds soil microbes and improves biological activity Potassium (K₂O ~10 percent) Improves drought, heat, and disease tolerance Supports strong flowering and fruit development Helps regulate water movement within the plant Organic Carbon (~25 percent) Feeds beneficial microbes in the soil Improves soil structure and long-term fertility Enhances nutrient cycling Trace Elements (Fe, Mn, Zn, Cu, B) Support enzyme function and photosynthesis Improve colour, growth uniformity, and plant resilience Essential for fruit, flower, and foliage quality
How long will a 600g packet last?
A 600 g packet provides excellent coverage because the formula is highly concentrated. Veggie gardens (4 g per litre): Makes 150 litres of solution Covers 150–1,500 m² depending on how heavily you apply it Lawns (2 g per litre): Makes 300 litres of solution Covers 300–3,000 m² A single 600 g pack is enough for multiple applications across an entire backyard, making it far more economical than premixed liquid fertilisers.
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