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Osmocote Pro 5-6 Month Controlled Slow Release High-Analysis Fertiliser

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  • High analysis controlled release fertiliser (Osmocote Pro 5 - 6 month) containing a complete range of essential nutrients. Suitable for most plants in pots including shrubs, flowers, ornamentals and trees.

    The Osmocote® Pro - Controlled Release Fertiliser Range, consists of a selection of professional grade fertilisers that contain industry leading concentrations of macronutrients (NPK), magnesium and a full suite of micronutrients (trace elements, TE's), all coated in a biodegradable resin with a pre-defined nutrient release profile.

    For fast growing plants, particularly in Spring, the 3-4m Osmocote® Pro option is generally advised, whereas during the rest of the year a slower release profile such as the 5-6m or the 8-9m Osmocote® Pro option might be more suitable. For particularly slow growing plants, such as most succulents, orchids, bonsai and particular exotics, the super long lasting 12-14m Osmocote® Pro is likely the best option. Please keep in mind, on a kilo-for-kilo basis, each of the Osmocote® Pro fertilisers contain a very similar nutritional composition, it is the nutrient release profile (duration) that varies.

    Unfortunately, many of the cheaper supermarket or even hardware store versions of slow-release fertilisers contain a generally less desirable NPK & TE ratio, in order to reduce product costs and focus on more immediate quick greening (mainly nitrogen) as opposed to sustained and longer term plant performance. The Osmocote® Pro - Controlled Release Fertiliser Range provides is a very high analysis fertiliser containing all the essential nutrients required for healthy plant growth and is suitable for most plant types including most lawns, flowers & ornamentals, trees including fruit trees, vegetable gardens as well as bonsai (at lower application rates). Osmocote® Pro is suitable for use in pots, planter bags, raised garden beds and wide range of landscape applications.

    The individual fertiliser granules are fully coated with a new generation matrix which provides constant and extended nutrient release (for 5 - 6 months) therefore helping growers avoid surges and leaching of important plant nutrients which belong in your pots or garden soil, not in our precious waterways.

    Osmocote® Pro is a professional grade product used widely by the nursery industry in Australia, particularly in the cultivation of perennial plants in pots and planter bags.

    What we love about Osmocote® Pro

    • High macronutrient (NPK) analysis
    • High micronutrient (Trace Element, TE) range
    • Sustained nutrient release profile (feeds plants for 5 - 6 months)
    • Nutrient release profile closely matches plant nutrient requirements
    • Nutrients maintained within the potting-mix
    • Suitable for a wide range of plants
    • Great value for money
    • Safe, reliable & easy to use

    Product Details & Specifications

    • Osmocote® Pro is packaged into resealable LDPE bags, plastic bottles or other suitable containers for ease of transport and use
    • The individual Osmocote® Pro granules measure 2-4mm, however, small variations from this do occur

    What am I Purchasing?

    • Osmocote® Pro (5 - 6 month release), of selected pack size

    Additional Information

    For additional information about the composition, application and limitation of Osmocote® Pro fertilisers, please visit the manufacturer's (Everris) website and search for Osmocote® Pro.

  • For indicative application rates, refer to the table below or the third image in the gallery.

    Garden Situation Application Rate
    Young plants including seedlings 2 - 3 grams per 1L of seed raising mix
    Pot plants 3 - 4 grams per 1L of potting mix
    Garden beds 10 - 30 grams per square metre of garden
    Native plants Use lower rates, generally half
  • For nutrient analysis as guaranteed by manufacturer, refer to the tables below or the third image in the gallery.


    6.5% nitrate nitrogen (NO3-N)
    8.8% ammoniacal nitrogen (NH4-N)
    1.7% urea nitrogen (Ur-N)
    8.3% water soluble
    10% water soluble


    0.33% Iron (Fe)
    0.06% EDTA chelated
    0.04% Manganese (Mn)
    0.037% Copper (Cu)
    0.02% Boron (B)
    0.015% Molybdenum (Mo)
    0.011% Zinc (Zn)

Customer Reviews

Based on 5 reviews
Ralph DON (WA)
Good product, waiting on results

Very good product, a little expensive but worth the price

Carmel Pratt (NSW)

good stuff

Megan Bartley (NSW)
Professional results for the home Gardener

As a qualified horticulturist I have used this product professionally. Thanks to the Climbing Fig all home gardeners have access to this great product.