Potting Mix | Which Osmocote Product Best Suits Your Needs?

Potting Mix – Osmocote products guarantees the best results!

What is potting mix?

  • Potting mix is purpose-made growing media that provides anchorage, support, moisture and food for plants growing in containers
  • Potting mix, in the confined space of a pot, needs to provide everything a plant requires to sustain it and promote healthy growth and flowering / fruiting

Why use a potting mix?

  • Quality, branded potting mixes like Osmocote® Professional and Osmocote® Plus Organics are specially formulated to provide near-perfect growing conditions for plants in pots, baskets, tubs and other containers
  • In a pot, plant roots have a restricted space in which to spread and from which to draw nutrients to sustain plant health - well formulated potting mix provides all they need to achieve this in a  relatively small volume
  • Garden soil should never be used as a potting mix substitute. On its own, it contains little nutriment, retains minimal moisture and sets hard, becoming impenetrable to plant roots

Why use a premium mix?

Premium quality potting mix

  • Is made from natural ingredients (wood chip, bark or similar) that have been fully composted to form a rich, dark soil-like material
  • Includes washed sand or other coarse material, like perlite, to improve drainage, lower weight and reduce compaction
  • Has excellent texture and structure that allow roots to grow unimpeded, accessing moisture, nutrients and oxygen as required, for up to two years before repotting is needed
  • Usually includes a controlled release fertiliser, a wetting agent to improve moisture penetration and water crystals to retain moisture
  • Complies with or exceeds the 'Five Red Ticks' Australian Standard for Soils

 Cheap 'no-name' mix, on the other hand

  • Is frequently made from uncomposted wood shavings or sawdust and sand
  • Has no texture, no structure and only minimal nutritional value
  • Does not include controlled release fertiliser
  • Compacts or 'slumps' in pots within a few months
  • Is badly aerated, starving roots of oxygen
  • Does not contain wetting agent or water storing crystals so is difficult to re-wet if it dries out

Osmocote® premium potting & planting mixes

  • Are made from quality raw materials from renewable sources
  • Last for up to two years without compacting ('slumping')
  • Are thoroughly composted to eradicate weeds, pests and diseases
  • Have good structure and texture, with air porosity that allows roots to take up oxygen (essential)
  • Contain controlled release fertiliser to promote strong growth over several months
  • Include a professional grade wetting agent for improved moisture penetration and retention, while allowing excess to drain freely
  • May include a 'bio stimulant' to give plants added strength and vigour

Which Osmocote® Professional Potting Mix product suits your needs?


Osmocote® Professional - African Violet & Cyclamen Mix

What to consider:

  • Developed by horticultural experts specifically for African Violets & Cyclamen
  • Low nitrogen, high potassium and high calcium content to encourage continuous flowering
  • Low salt formula to prevent leaf tip burn
  • Granular wetting agent included for uniform wetting of mix
  • Includes controlled release fertiliser to feed continuously for 6 months

Osmocote® Professional - Bonsai Mix

What to consider:

  • Developed by horticultural experts specifically for bonsai
  • Contains controlled release fertiliser to feed for up to six months
  • Granular wetting agent included to ensure uniform wetting and rewetting of mix
  • Contains sandy loam to provide ideal water and nutrient holding in a small container

Osmocote® Professional - Bulb Mix

What to consider:

  • Developed by horticultural experts specifically to meet the needs of bulbs
  • Contains controlled release fertiliser to feed for six months
  • Contains boosted magnesium for healthy foliage
  • Includes enhanced calcium level to promote strong flower stems and minimise diseases in bulbs

Osmocote® Professional - Cacti & Succulents Mix

What to consider:

  • Contains controlled release plant food - feeds plants for up to 6 months
  • Formulated as a free draining mix to prevent water logging
  • Professional grade wetting agent added for uniform soil wetting and to extend the period between watering
  • Added calcium for stronger plants and stems

Osmocote® Professional - Multi Purpose Potting Mix

What to consider:

  • General purpose mix includes enough fertiliser to feed for four months
  • Includes granular wetting agent to retain moisture
  • Suited to all plants except phosphorus-sensitive native plants and proteas

Osmocote® Professional - Native Potting & Planting Mix

What to consider:

  • Contains controlled release plant food that feeds for up to 6 months
  • Low phosphorus to prevent yellowing leaves and phosphorus toxicity
  • Added calcium for stronger plants and stems
  • Boosted levels of iron to help prevent phosphorus toxicity

Osmocote® Professional - Orchid Mix

What to consider:

  • Developed by horticultural experts to provide the ideal root environment for growing show quality orchids
  • Contains controlled release plant food - feeds plants for up to 12 months
  • Formulated with coir chips and graded composted pine bark, which provides easy anchoring for roots and moisture retention
  • Sphagnum (fibre) moss for added moisture, air and nutrient control
  • Added Calcium to strengthen pseudo bulbs and flower stems, and encourage strong disease resistance

Osmocote® Professional - Premium Potting Mix

What to consider:

  • Included fertiliser feeds for up to six months
  • Added ScottsCoir™ and next generation water crystals absorb and retain up to 100% more water than standard mixes
  • Not suitable for phosphorus-sensitive plants

Osmocote® Professional - Rose, Gardenia, Azalea & Camellia Mix

What to consider:

  • Developed specifically for roses and acid loving plants as a superior base
    for growing roses and plants that prefer acidic and low pH conditions
  • Contains controlled release fertiliser to feed continuously for up to six months
  • Formulated with next generation water crystals and coir peat for better moisture retention
  • Boosted levels of iron and magnesium for healthy dark green foliage

Osmocote® Professional - Seed Raising & Cutting Mix

What to consider:

  • Developed by horticultural experts specifically for germinating vegetable, flower and herb seeds, and for rooting leaf, stem and root cuttings
  • Formulated with gypsum and phosphorus for improved root development and vigorous growth
  • Sphagnum peat and coir create the ideal moisture and nutrient environment
  • Added next generation water crystals to keep tender seedling and cutting roots moist

Osmocote® Professional - Terracotta Pot & Planter Mix

What to consider:

  • Ideal for all pot types including terracotta containers, outdoor tubs and planter boxes
  • Contains controlled release plant food - feeds plants for up to 12 months
  • Formulated with ScottsCoir™ and next generation water crystals, enabling the mix to hold up to 3x more water than ordinary potting mixes
  • Professional grade wetting agent added to ensure uniform wetting of mix and prevent drying out

Osmocote® Professional - Fruit & Citrus Potting & Planting Mix | Scotts Australia

What to consider:

  • Developed specifically for all fruiting plants (evergreen and deciduous) as a superior growing base
  • Contains controlled release fertiliser to feed continuously for up to six months
  • Formulated with next generation water crystals and professional grade wetting agent for better moisture retention and penetration
  • Boosted levels of iron and magnesium for healthy dark green foliage