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.