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Earthborn’s Custom Blending service allows you to build a potting mix or soil-conditioner to suit your growing operation.

We’ll work with you to design a growing media with appropriate structural, nutritional and biological properties.

All mixing is completed on concrete hardstand. Product can be supplied loose or in bulk bags. Read about bagging and delivery options.

Not seeing all the ingredients you’d like? Ask us if we can source it, or you can supply it yourself.

When picking your raw materials, please keep in mind that we cannot measure in units smaller than half a cubic meter.

Fertilisers and amendments can be measured by the tonne or by the kilogram (and rarely, by the litre).

MATERIALS:

Composted Pine Bark

0-6mm

6-10mm

10-15mm

Forestry Sourced: 450-550 kgs/m³

Coir Pith

(Hydrated – sold by the cubic meter; Un-hydrated – sold by the 5kg block)

Hydrated

By-the-block

A spongy material derived from coconut husks, coir pith has many applications in agricultural and horticultural industries. Coir has fantastic moisture retention qualities.

Basic Soil Conditioner

(Read more about this product)

0-15mm

Aerobically Composted Vegetation: 550-650 kgs/m³

Stable inputs

Mary River Sand

Basalt Dust

These stable materials weigh 1200-1400 kgs/m³

Composted Chicken Litter

(by the kilogram or ton)

Pelletized - Certified Organic


Nitrogen (N)	3.50%	Iron (Fe)	1600mg/kg
Phosphorous (P)	1.55%	Manganese (Mn)	400mg/kg
Potassium (K)	1.66%	Copper (Cu)	90mg/kg
Calcium (Ca)	1.8%	Zinc (Zn)	400mg/kg
Magnesium (Mg)	0.50%	Boron (B)	30mg/kg
Sulphur (S)	0.44%	Molybdenum (Mo)	8mg/kg

LIST OF FERTILISERS AND AMENDMENTS


NUTRIENT	Agricultural Lime	Fine powder. Approx. 38.4% Calcium(Ca)
NUTRIENT	Blood & Bone	Matured meat and bone meal. Fine Powder. Nitrogen(N): 8%, Phosphorus(P): 4.6%, Potassium(K): 0.5%, Calcium(Ca): 9%
NUTRIENT	Carbon Coat Urea	2-4mm Slow-release prill. 46% Nitrogen. 21% Carbon
NUTRIENT	Chicken Manure	Matured & pelletized. Certified Organic. Nitrogen(N):3.5%, Phosphorus(P):1.55%, Potassium(K):1.6%, Calcium(Ca): 1.85%, Magnesium(Mg): 0.50%, Sulphur(S): 0.44%. Trace Elements Iron(Fe) 1600mg/kg, Manganese(Mn) 400mg/kg, Copper(Cu) 90mg/kg, Zinc(Zn) 400mg/kg, Boron(B) 30mg/kg, Molybdenum(Mo) 8kg/mg. Rich in humates
NUTRIENT	Cobalt Sulphate (hepta)	approx. 21% Cobalt
NUTRIENT	Copper Sulphate	approx. 25% Copper
NUTRIENT	Dolomite	Fine powder grade. Calcium/Magnesium ratio dependant on source.
NUTRIENT	EB 88	One of our custom built, in house ferts. Slow-release 2-4mm Prills. Nutrient rich, organic inputs such as kelp, seaweed, manures & silicates blended with conventional NPKs. Nitrogen(N): 15.1%, Phosphorus(P): 4.4%, Potassium(K): 8% +trace elements
NUTRIENT	EB Nutrient Boost	One of our custom built, in house ferts. Slow-release 2-4mm Prills. Nutrient rich, organic inputs such as kelp, seaweed, manures & silicates blended with conventional NPKs. Nitrogen(N): 3.5%, Phosphorus(P): 2%, Potassium(K): 4% +trace elements
NUTRIENT	Gypsum	Fine mineral. Calcium(Ca): 16%, Sulphur(S): 20%
NUTRIENT	Gran-Am	Approx. 20% Nitrogen(N), 24% Sulphur(S)
NUTRIENT	Iron	Ferrous sulphate heptahydrate. Approx. 20% Iron(Fe) and 10% Sulphur(S). Ratio can vary depending on source
NUTRIENT	Nitrogen (Urea)	2-4mm Slow-release prill. 46% Nitrogen.
NUTRIENT	Osmocote Pro, Plantacote, Plantosan	Various controlled-release, compound NPK varieties available. Advise us of your preferred brand
NUTRIENT	Potassium Sulphate	Fine grade. 41% Potassium(K), 18% Sulphur(S)
NUTRIENT	Sodium Molybdate	Approx. 39.5% Molybdenum (Mo)
NUTRIENT	Soft Rock	1-2m granule. Phosphorus(P): 8.5%, Calcium(Ca): 19.3%, Silicate(Si): 20.5%
NUTRIENT	Stabilized Boron	10% Borate stabilised with humates, 3.23% Boron
NUTRIENT	Super Phosphate Single	Super fine particle size (powder) for quick uptake. 9% Phosphorus(P), 20% Calcium(Ca).
NUTRIENT	Zinc Sulphate	approx. 36% Zinc(Zn)
NUTRIENT	MicroMax Premium	Professional grade Trace-Elements blend. Highly refined for optimum distribution in growing media.
BIO STIMULANT	Kelp Meal	Microbial stimulation, broad spectrum trace elements including selenium
BIO STIMULANT	Palagonite	Silicon, Calcium and Magnesium. Cation exchange capacity (CEC) of 34. Improves moisture retention. Stimulates soil biology.
BIO STIMULANT	Soluble Humate Granules	Fertiliser stabiliser, fungal stimulant. 75% Potassium Humate. 85% soluble
BIO STIMULANT	Worm Cast Concentrate	Liquid extraction including beneficial bacteria, protozoa , nematodes and mycorrhizal fungi
OTHER	Perlite	pH neutral. Coarse grade 3-5mm (other grades: fine-jumbo are available on request). Perlite is measured in 50 litre increments.
OTHER	Zeolite	Volcanic zeolite. Profile sizes: 1-3mm or 2.2mm+
OTHER	Peat Moss	pH adjusted peat moss. Measured in 200 litre increments.
WETTING	Aqua Fix	Professional wetting agent. Granular.
WETTING	Hydroflo II	Professional wetting agent. Granular.

Soils and Top Dress

Soil is made up of clay and silt particles, sand and organic matter. Formed over millennia, it covers the surface of the earth and plays a vital role in nourishing our ecosystem.

Plant’s get 80% of what they need to thrive through their roots. Healthy, fertile soil should contain balanced minerals and organic matter to stimulate soil biology and plant growth.

LANDSCAPE MIX

This mix is best described as a general-use garden soil. It contains aerobically composted and enriched organics, which are ideal for sustaining beneficial microbial activity in all garden applications.

Made from screened topsoil and vegetation-based compost, Earthborn’s Landscape Mix is suitable for in-ground plants including most natives, tropicals, fruits and vegetables. It can be used in both residential and commercial environments.

The combination of natural topsoil and composted organics assists with drainage and water penetration to root systems, provides biological stimulation to boost plant growth and regulates soil temperatures to buffer changes in climate.

For analysis against Australian Standards 4419, please contact us.

This mix can be customised for cost effectiveness on large scale trade and development projects.

Size: 0-20mm sieve.
PREMIUM SOIL MIX

This blend is suitable as a garden soil or under turf mix. Made from finely screened vegetation-based compost, sand and screened topsoil. Earthborn’s Premium Soil Mix has added nutrient from organic fertilisers – pelletised chicken manure, gypsum and dolomite.

The combination of natural topsoil and composted organics assists with drainage and water penetration to root systems, provides biological stimulation to boost plant growth and regulates soil temperatures to buffer changes in climate.

For analysis against Australian Standards 4419, please contact us.

Size: 0-15mm sieve.
SCREENED SOIL
TOP DRESS

A blend of superfine compost, Mary River sand and basalt dust. Includes fertiliser.

Encourage growth of thin or uneven turf with Earthborn’s Top Dress. It will help restore natural soil levels by filling bare or patchy areas. This sandy medium allows free flowing drainage. The organic content replenishes nutrients that have leached out due to erosion from heavy rain, repeated foot traffic or a lack of maintenance.

Size: minus 6mm sieve.

Spread over turf, up to 10mm thick. Deeper holes and patches may need to be filled in more gradually with a few top dress applications over time.

We deliver all throughout South East Queensland, as well as into Far North Queensland and New South Wales.

We run our own fleet of trucks and we’ve got a vehicle to suit all jobs: Small body trucks, truck and dogs, semi-trailers, side-tippers, walking floors and B-Doubles.

Truck Dimensions

Small Truck:
H2.9m; W2.5m; L6.1m

Body Truck:
H4.1m; W3m; L8.4m

Truck & Trailer (dog): <br>H4.1m; W3m; L20m

Truck & Trailer (dog):
H4.1m; W3m; L20m

Earthborn use a fleet of varying sized vehicles. The above dimensions are estimates. We can also supply product in semi trailers, walking floors, B-Doubles or side tippers upon request.

If you have concerns about access, please discuss this with us when confirming your order.

Bagging

Weigh 300-1200 kgs each

Any of our products can be bagged into 1m³ bulk bags for an extra cost of $20-$30.

If you require the bags on pallets, we can supply them for $15 each, or you are welcome to supply your own in advance.

Bags are delivered on flatbed trucks – rigid (approx. 10 bags per load) or semi (approx. 20 bags)

Unloading of bags at delivery point will require a forklift or crane.

Trucks with crane or fork (moffett) attachments can be supplied. Bulk Bag freight is charged at $125 per hour +GST, return trip.

Why Mulch? Regular mulching helps with weed suppression, moisture retention, erosion control and regulation of soil temperatures. Mulch that contains finer particles is more soil-conditioning and will provide a microbial food source.

Mulch is a material that is spread over the ground to enrich or insulate the soil. Think of it as a barrier that helps reduce weed growth, hold and conserve water and protect plant roots from climate shock.

Mulch can come in many different forms – ground, chipped or shredded.

Earthborn mulches also come in different grades (sizes) with varying levels of fine and coarse particle sizes.

HALF-INCH BARK

This bark comes in rich brown and red earthy tones, giving both small and large scale gardens a higher level of finishing without the hassle of stained pathways. This mix is long lasting and does not contain fines, ensuring high levels of drainage and water penetration through to the soil layer. This decorative mulch is forestry sourced which reduces risk of weed seeds.

10-15mm sieve.

Spread around gardens up to 200mm thick. Top up every 12 months.
FINE MULCH

A sustainable ground cover mulch with high water-holding capacity. These aged fines will break down & condition the soil over a 12-18 month period. If you are looking for environmentally friendly, low impact product then you will appreciate the fact that Earthborn’s Fine Mulch is sourced and recycled locally.

Size: 0-15mm sieve.

Spread around gardens up to 100mm thick, avoiding the plant’s main stem and any fragile foliage. Top up every 6-12 months.
FOREST BLEND

A blend of Fine Mulch and Half Inch Bark, fines hold water & condition soil as they break down. Bark chips ensure proper drainage and increases longevity.

Size: 0-15mm sieve.

Spread around gardens up to 100mm thick, avoiding the plant’s main stem and any fragile foliage. Top up every 6-12 months.
HARDWOOD CHIP

Earthborn’s Hardwood Chip is a long-lasting, decorative mulch that contains minimal fines and will retain its natural earthy tones for longer than pine chip products. Comprised of hardwood, rather than soft pine, it is also a safer option for those who worry about termite attraction.
BUDGET MULCH

A cost effective, coarse-grade mulch ideal for moisture retention and weed suppression on acreage and semi-rural properties. Will break down & condition soil over 2 years. Made sustainably from 100% recycled vegetation. Best suited to rural and urban development projects, Earthborn’s Coarse Forest Mulch will help prevent drying, cracking and erosion of soils.

Size: 0-125mm sieve.

Spread at least 100mm thick. Top up every 12 months.
CYPRESS MULCH

A sweet and fresh smelling mulch ideal for established gardens. Cypress oils are a temporary white-ant & insect deterrent. Contains chip and fines. As this product is forestry sourced it has a reduced weed seed risk.

Stock levels of this product change seasonally, minimum order quantity of 10 cubic metres may apply.

Size: 0-25mm sieve.

Spread up to 200mm thick, avoiding the plant’s main stem and any fragile foliage. Top up every 6-12 months.
TEA TREE MULCH

A pleasant smelling mulch that is ideal for established gardens. Tea-tree oils are a temporary white-ant & insect deterrent. As this product is forestry sourced it has a reduced weed seed risk. This mix contains fines that will break down and condition soil but the material disintegrates more slowly than other fine mulches, generally lasting a full year.

The seasonal availability of this product varies significantly, it is advised to place orders well in advance of project commencement. Minimum order quantities may apply.

Size: 0-25mm sieve.

Spread up to 200mm thick, avoiding the plant’s main stem and any fragile foliage. Top up every 12 months.

Soil Conditioner and Compost

Our products are listed further down the page. Please read on for more information about the benefits of compost.

Whether in the garden or on the farm, organic matter plays an important role in keeping soil healthy and fertile. Soil conditioning improves the resilience and productivity of both small and large scale growing systems.

Water saving

Increase drought tolerance by holding hundreds of thousands of extra litres per hectare. Increasing the level of organic matter in your soil by a mere 1% will provide you with this extra water holding capacity. This equates to an extra 15-20 litres of water per square meter. Less evaporation from rain events and less watering required.

Reduced reliance on fertilisers

Treating your soil with an Earthborn soil-conditioner will help minimize nutrient loss due to fertiliser leaching.

Stimulate soil biology

Organic matter is a food source for beneficial microbes. These microscopic organisms produce plant-growth hormones and amino acids. Throughout their life cycle they play an important role in nutrient delivery. All natural fertilization through mineral transformation and cycling at the microbial level lessens our reliance on chemical inputs, whilst boosting plant immunity and natural defense mechanisms.

Add stable carbon to the soil

Soil-conditioning is a hugely important tool in adaption to changing climate cycles. Building 1% humus in the soil binds up to 50 tonnes of CO2 per hectare.

Soil detoxification

The carbon in compost isolates chemical and heavy metal residues and reduces their likelihood of contaminating our food chain and waterways.

FINE PLANTING MIX
BASIC SOIL CONDITIONER
Improve water-holding capacity and stimulate soil biology. Suitable for cropping, grazing, dairy, land regeneration and urban farming.

Earthborn’s Basic Soil Conditioner is produced through an aerobic composting cycle over 8+ weeks, where organic material is subjected to heat treatment exceeding 55 degrees Celsius. Sustainably made from recycled vegetation.

Size: 0-15mm sieve.

Over time, soils can become depleted and exhausted of minerals and nutrients. If these are not present in the soil, plant growth becomes stunted and eventually impossible. It is necessary to value add to the soil via additional organic matter and amendments.

Mix and blend the conditioner with existing soil:
- To maintain existing organic matter levels, apply 10 tonne per hectare (1kg per square metre)
- To increase organic matter levels slowly, apply 20 tonne per hectare.
- To increase organic matter levels quickly, apply 40 tonne per hectare.
For analysis against Australian Standards 4454, please contact us.

Do you need a custom blend? Add additional fertiliser and amendments with our Custom Blending service.
BUDGET PLANTING MIX

This is our Basic Soil Conditioner blended with pine sawdust and recycled timber chip. This mix is designed for large-scale planting operations that need a light, friable growing medium.

Size: 0-15mm sieve.

For analysis against Australian Standards 4454, please contact us.

Do you need a custom blend? Add additional fertiliser and amendments with our Custom Blending service.
COW MANURE BLEND

Choose either our Budget Planting Mix or Basic Soil Conditioner to be enriched with 30% cow manure. Suitable for phosphorus hungry plants.

Size: 0-15mm sieve.

Minimum order quantity of 30 cubic metres.

Do you need a custom blend? Add additional fertiliser and amendments with our Custom Blending service.

Organic Disposal and Recycling

Circular Economy Principles

Earthborn Australia is a resource recovery and green organics recycling facility. Based on the Sunshine Coast, we run an aerobic composting plant that accelerates the decomposition of organic matter in a controlled microbial environment by adding water, oxygen and nutrient. We handle approximately 100,000 cubic meters of organic material per annum.

Solid waste disposal:

Shredded vegetation, green waste and wood waste.
Tree loppers chip and other vegetative residues from logging and land clearing operations.
Animal manures and residues.
Crop residues from farming operations
FOGO (food organics and garden organics generated by residents)
Compostable packaging (must comply with AS4736 or AS5810)
Clean fill and topsoil

Liquid waste disposal:

Food processing wastes (e.g. residues from food manufacturing and grease trap from restaurants & commercial kitchens).
Hydro-excavation, muddy and storm waters (source dependent).

Opportunities to recover further resources grow every day as newer technologies and techniques become available. The organic recycling industry is highly regulated; please contact us to determine if we have a suitable waste disposal solution for you.

Established over 30 years ago, Earthborn has been at the forefront of developing progressive and sustainable systems to divert organic material from landfill. We use sophisticated processes to refine and beneficially reuse both solid and liquid waste materials generated in metropolitan and regional centres.

The Process

Depending on the both the physical and nutritional characteristics of the material, additional treatments and
processes are required. These may include mechanical shredding to regulate the consistency of the
material, treatment with odour-controlling microbes or the addition of other carbon and nitrogen sources to ensure the correct C:N ratio of 30:1, as is necessary for continuous composting.

Composting

Regular turning (mechanical aeration) and watering is imperative for proper oxygen supply.
Temperatures are also monitored throughout the composting cycle, 55 degrees must be reached and maintained to rapidly decompose the material. These high temps also destroy most pathogens and seeds.

Screening

Once temperatures have dropped and the windrow is finished actively composting, it undergoes a screening process that separates by particle size. The compost can now be further amended to change the nutritional profile and physical structure of the mix. This takes the material from a basic soil conditioner, to a premium enriched compost with stimulated biology and plant available nutrient.

Curing

Compost is then left to cure. This allows the microbial population to build and diversify. The pile is irrigated throughout this period, allowing us to add microbe food & stimulants such as molasses, kelp & fish extract or liquid worm extract. Finally, the material is put through our quality assurance process, including laboratory testing.

Potting Mix

When it comes to growing in pots and containers, potting mix plays a crucial role in strong, healthy plant growth. There are different potting mixes to suit different purposes and different plant types.

Potting mix has several jobs; it helps to keep the plant in place while it grows, it holds water for the roots to soak up, while also improving drainage. It also contains nutrients to feed and fertilize the plant.

At Earthborn, we stock a range of base potting mixes, as well as a range of specialised mixes. Due to the complex nature of these specialised mixes, minimum order quantities may apply – you can always place an advance order with us. The next time we batch this product up, we’ll put some aside for you). We also offer custom mixing for growers who have more specific needs and for those who need to keep tighter control on fraction sizes, mineral profile and raw materials.

MAC 50 POTTING MIX
A fine blend of 0-10mm composted pine bark.

Softer organics provide moisture retention whilst the larger, harder particles provide structure for oxygen circulation, drainage, and root formation. No added fertilizer, other than lime for pH balancing.

Formulated for hobby growers and the nursery industry, Earthborn’s Mac 50” is an ideal product to use as a base for various types of container growing.
- Size: 0-10mm sieve.
- pH range 5.5 – 6.5
- EC <1
- Air Filled Porosity 20 – 30%
(These parameters are to be used as a guide. Potting mix properties change over time due to various factors, e.g. the leaching of mobile minerals will change pH levels, and the continued break down of organic matter will affect structure over time.)

Do you need a custom potting mix? Design from scratch using our Custom Blending service.
MAC 100 PREMIUM POTTING MIX
A premium potting mix designed to sustain plant growth. Made from 0-10mm composted pine bark. Includes Mary River sand for stability, basalt dust for mineralization and coir peat for water holding. Also contains a full complement of major, minor and trace element fertilisers.

With exceptional nutritional and physical properties, Earthborn’s Mac 100 is suitable for tropical plants as well as container grown fruit & vegetables.
- Size: 0-10mm sieve.
- pH range 5.5 – 6.5
- EC <1
- Air Filled Porosity 20 – 30%
(These parameters are to be used as a guide. Potting mix properties change over time due to various factors, e.g. the leaching of mobile minerals will change pH levels, and the continued break down of organic matter will affect structure over time.)

Do you need a custom potting mix? Design from scratch using our Custom Blending service.
COARSE POTTING MIX
This potting mix is light and airy, allowing for increased water and oxygen circulation. Contains less fines than most potting mixes; over 50% of the mix consists of particles 6-15mm in size. Earthborn’s Coarse Potting Mix is made from 0-15mm composted pine bark and a small amount of coir peat.

This potting mix also contains a range of minor and trace elements but there is no added N, P or K fertilizer, making it suitable for most natives and other phosphorus sensitive plants.
- Size: 0-15 mm sieve.
- pH range: 5 – 6
- EC <1
- Air Filled Porosity 25 – 35%
(These parameters are to be used as a guide. Potting mix properties change over time due to various factors, e.g. the leaching of mobile minerals will change pH levels, and the continued break down of organic matter will affect structure over time.)

Minimum order quantity of 5 cubic metres, (if you don’t require this much, call and place an advance order. The next time we are batching this product up we will put a small quantity aside).

Do you need a custom potting mix? Design from scratch using our Custom Blending service.
SEEDLING MIX
This fine mix is made from 0-6mm composted pine bark with 10% perlite added for oxygen circulation. Includes zeolite and a mild organic fertiliser that will sustain plants for approximately one month.

Suitable for use in seed trays and tubestock.
- Size: 0-6mm Sieve
- pH range: 5 – 6
- EC: <1
- Air Filled Porosity: approx. 15%
(These parameters are to be used as a guide. Potting mix properties change over time due to various factors, e.g. the leaching of mobile minerals will change pH levels, and the continued break down of organic matter will affect structure over time.)

Minimum order quantity of 1 cubic metre (if you don’t require this much, call and place an advance order. The next time we are batching this product up we will put a small quantity aside).

Do you need a custom potting mix? Design from scratch using our Custom Blending service.
PLANT BAG MIX
This mix is intended to be used in plant bags ranging from 25-300 liters. Made from 0-15mm composted pine bark and coir peat for water holding. No added fertilisers.
- Size: 0-15mm Sieve
- pH range: 5 – 6
- EC: <1
- Air Filled Porosity: approx. 20%
(These parameters are to be used as a guide. Potting mix properties change over time due to various factors, e.g. the leaching of mobile minerals will change pH levels, and the continued break down of organic matter will affect structure over time.)

Do you need a custom potting mix? Design from scratch using our Custom Blending service.
CACTI & SUCCULENT MIX
This potting mix contains over 60% stable ingredients such as sand and perlite, providing the mix with superior water drainage properties.

Earthborn’s Cacti & Succulent Mix is made from 0-6mm composted pine bark, coarse sand and perlite.

This mix contains no added fertilisers, so is suitable for nutrient sensitive plants.
- Size: 0- 6mm sieve.
- Minimum order quantity of 1 cubic metre.
Do you need a custom potting mix? Design from scratch using our Custom Blending service.