Scotts Osmocote® Professional Orchid Mix

A specially formulated, free draining potting mix that provides the ideal root environment for growing show quality orchids, including all epiphytic and terrestrial orchids. It includes Scotts Osmocote® that feeds for 12 months as well as a wetting agent to help water soak in.

  • The perfect orchid mix recipe for healthy strong plants.
  • Designed for the ideal water to air ratio, this mix is formulated to contain balanced and slowly delivered nutrients, which are gentle on orchids
  • Contains enough controlled release orchid fertiliser to feed plants continuously for up to 12 months
  • Wetting agent added to ensure uniform wetting mix and prevent drying out
  • Formulated with coir chips and graded composted pine bark to provide easy anchoring for roots and moisture retention while allowing excess moisture to drain away freely
  • Added calcium in the form of gypsum for the development of strong pseudo bulbs and flowers and to encourage disease resistance

Boosted calcium

For stronger plants and stems and to help control diseases

Wetting agent

Assists moisture to soak into the mix and helps roots absorb nutrients

Australian Standard

Certified to meet the Australian Standard for Premium potting mixes


10L and 25L bags

Suitable for

All terrestrial (roots growing down into potting mix or soil) and epiphytic (aerial roots) orchids

Safe to use for new plants - the controlled release of nutrients means it will not burn soft leaves or tender young roots

Not suitable for

Don't use for phosphorus sensitive Australian native ground orchids like greenhoods, donkey and sun orchids - use Scotts Osmocote® Professional Native Potting & Planting Mix instead

Don't use in hydroponic growing systems or ponds

Don't use on lawns - use only specifically named lawn topdress soils on grassed areas

How it works

  • Orchid Mix provides the ideal growing environment for most terrestrial and epiphytic orchids
  • It has been designed and is guaranteed to grow better plants from seedlings and and pseudo bulbs to mature, well established plants

How to use

  1. Use Orchid Mix straight from the bag - don't mix it with other materials. Close the bag tightly after use
  2. Choose a clean container with large drainage holes and partly fill it with fresh mix out of the bag
  3. Carefully knock the plant to be potted up from its existing pot and loosen the root ball. If the plant is congested, separate into either individual pseudo bulbs or groups of 3-4 bulbs. Trim off any dead or damaged roots
  4. Place the orchid in the centre of the pot with the crown just below the lip of the pot and clear of the top of the mix when repotting is complete - don't 'bury' pseudo bulbs)
  5. Add mix in and around the roots, working it in with your fingers if necessary
  6. Tap the new pot or container gently on the bench to help the new mix settle in and around the roots - do not pack it down
  7. Water the pot thoroughly (until water runs from the drainage holes) then allow it to drain freely. If necessary, top the mix up again to the suggested level.
  8. Place the pot or container in the shade for a few days to allow the plant to settle and acclimatise before moving back to its permanent home

Most orchids have fairly thick, fleshy roots, so it is important to use only a specially formulated Orchid Mix for them - normal potting mixes are too dense and retain too much moisture which could cause roots to rot.

Epiphytic orchids like Phalaenopsis (Moth Orchids) and Dendrobium have aerial roots, so never set them too deeply in pots - use stakes to hold them in place securely.

For a complete guide on how to use Scotts Osmocote® Professional African Orchid Mix, watch the video on this page and always check the packaging.

When to use

  • Orchids are best repotted in mid Spring, or immediately after they have finished flowering
  • Avoid Winter or Summer as the extremes of temperature may stress plants

Safety Information

CAUTION: This product may cause staining of hard surfaces if wet. Avoid contact with hard surfaces and if contact does occur, sweep off immediately.

When using potting mixes, we recommend the use of garden gloves to protect your hands

Technical details

  • Boosted levels of calcium (gypsum) assist in promoting strong, healthy plants capable of resisting diseases
  • Scotts Osmocote® Controlled Release Fertiliser provides plant nutrition and trace elements for up to 12 months

Where to buy it

Decided what product best suits your needs? Or would you prefer to go in-store to ask for more information?

Visit your local Bunnings Warehouse for our largest range.

You can also find Scotts products in a number of gardening, hardware, independent and supermarket retailers including Flower Power, Mitre10, Coles and Woolworths.

Note: Not all brands and products are stocked in all stores. For any additional questions please visit our contact us page.

In New Zealand, go to your local Bunnings warehouse

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