Scotts Osmocote® Bonsai Potting Mix

Scotts Osmocote® Bonsai Potting Mix

Size: 10L

Main product features

Contains 6 months feed
Contains 6 months feed
Encourages stronger root development
Encourages stronger root development
Plus trace elements
Plus trace elements
WaterSmart Technology
WaterSmart Technology

unique and premium  bonsai potting mix specially formulated for growing bonsai of all types and ages - as well as other plants grown in shallow pots. It includes Scotts Osmocote®, which distributes nutrients and feeds for 6 months.

When to use



  • Bonsai Potting Mix contains coarse grit in addition to the usual composted pine bark, to help it retain moisture and nutrients for longer in the shallow bowls and pots used for traditional bonsai
  • Wetting agent assists moisture to soak into the potting mix and helps roots absorb nutrients
  • Certified to meet the Australian Standard for Premium potting mixes



  • All traditional bonsai, including evergreen or deciduous, flowering or foliage trees and shrubs
  • Starting new bonsai from seedlings or rooted cuttings
  • Safe to use for new plants - the controlled release of nutrients means it will not burn soft leaves or tender young roots



Don't use in hydroponic growing systems

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


  1. Use Bonsai Potting Mix straight from the bag - no further additives required
  2. Select a clean pot with large drainage holes that is in proportion to the size of your bonsai plant and its root system - if you want your plant to grow bigger select a larger pot than previously
  3. Position anchor wires through the drainage holes, then cover the base of the pot with mesh (to prevent potting mix washing out) and a layer of grit or coarse washed river sand to aid drainage
  4. Water the plant thoroughly, then carefully remove it from its existing pot
  5. Gently tease the old potting mix from the outside of the rootball. Carefully remove any damaged or twisted roots and prune back elongated roots - pruning the roots will stimulate new growth
  6. Fill 1/3 of the new pot's height with the fresh Bonsai Potting Mix
  7. Place the plant in the pot then add more potting mix to the correct height of sloping just below the rim of the pot to the base of the bonsai trunk -the bonsai should look like it's in a miniature landscape
  8. Gently tap the new pot down to help the new potting mix settle in and around the roots
  9. Thoroughly water the plant and allow it to drain freely
  10. Place the pot in a sheltered spot for 5 days to allow the plant to settle and acclimatise before moving it to a permanent home

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



  • Potting mixes can be used at any time of the year
  • Repotting established plants is best done either in Spring or Autumn - avoid Winter or Summer as the extremes of temperature may stress plants
  • Flowering plants should be repotted after they have flowered - enjoy the blooms first!



  • Scotts Osmocote® Bonsai Premium Potting Mix contains a balanced fertiliser up to 6 months - additional fertiliser may be required in time, depending on plant needs
  • Avoid allowing plants to dry out - plants should be watered immediately after potting



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, and if dusty, wear a particulate mask

SAFETY FIRST: Read the instructions on the product packaging before use and take particular note of any warnings or cautions on the label 

See the Safety Data Sheet for this product



The addition of coarse grit assists in holding the shallow roots of a bonsai firmly in position while also increasing moisture retention in the mix

The professional-grade wetting agent included ensures water soaks in readily and aids roots in absorbing nutrients

Health and Safety

Always read the pack label and product instructions carefully before use. For further information relating to product safety please review the product data safety sheet link below.

Scotts Osmocote® Bonsai Potting Mix main image
Scotts Osmocote® Bonsai Potting Mix 10L (other sizes available)
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