With over 50 years of innovation, Osmocote continues to set the standard in controlled release fertiliser (CRF) technology. Our 5th generation formulas offer precision nutrient release and tailored longevities for every crop. Trusted by growers worldwide, Osmocote delivers unmatched quality, consistency, and return on investment. It can be incorporated into Levington Advance Solutions growing media mixes, offering a complete, high-performance nutrition and substrate solution.
Osmocote
The world’s leading controlled release fertiliser for plants

Benefits
- Stronger growth – delivers the right nutrients at every growth stage
- Sustainable – minimises leaching; safer for the environment
- Premium quality – ensures uniform, high-quality plant development
- Fewer issues – healthy growth reduces pests and diseases
- Long-lasting results – plants stay vibrant after purchase, boosting customer satisfaction



The Osmocote range

The next generation controlled release fertilisers
Discover Osmocote 5 – the latest innovation from the Osmocote Green Lab. Building on years of research and development, this next generation controlled release fertiliser helps growers create the strongest, healthiest, highest quality plants. Thanks to the OTEA-system and nutrient matching technology, plants are greener, stronger and more resilient. Read more here.
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Even nutrient release and high potassium for compact growth
The first third-generation fertiliser, Osmocote Exact Standard, releases nutrition consistently throughout the growing season, in line with the plants’ requirements. This regular, continuous release makes it ideal for almost all growing situations. It’s especially well-suited to evergreens and deciduous shrubs, that can only be applied in one release pattern. It can also be used where plants’ nutrient demands are consistent throughout the growing cycle.
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The fall and winter potting solution for container nursery stock crops
Fourth-generation fertiliser Osmocote Exact Protect’s 100% double-coated granules postpone nutrient release during the winter months. That means EC or salt levels in the growing medium stay consistently low for up to the first three months. Longevity is between five and 14 months, while granule size is 2.0-4.5 mm.
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The mini fertiliser granules providing maximum benefits
Osmocote Exact Mini is perfect for use in small-substrate volumes such as plugs and trays. The fine granules (of between 0.85 and 2.0 mm) are smaller than Osmocote Exact Standard. This provides optimum nutrient distribution and uniform growth, in volumes as low as 20ml. The granules may be small – but each one is packed with every nutrient plants need. Osmocote Exact Mini can be used to combine the rooting and repotting stages, rather than adding extra fertiliser via sprinklers.
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The controlled-release fertiliser for growing compact plants
Osmocote Exact High K is a 3rd generation controlled release fertiliser and has been designed to support compact plant growth where the irrigation water has high nitrogen levels. It’s the ideal solution for CNS crops and compact pot plants, perennials, and bedding plants. It also provides great results with species that need high potassium nutrition, including cyclamen, viola, and primula results in compact plants.
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The mini fertiliser tablets providing maximum benefits
Osmocote Exact Tablets offer convenience and very accurate rates of nutrients. Due to their cone-like shape, the tablets can be easily pushed into the growing media. As with Osmocote Exact, the longevity is instantly recognised by the colour of the granules in the tablets. Tablets are available in 5 gram and 7.5 gram formats.
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The second generation controlled-release fertiliser
Osmocote Pro is a second generation controlled release fertiliser with a high NPK content. Containing all necessary trace elements it has a fixed release pattern. Osmocote Pro provides consistently strong results. It comes in 4 longevities: 3- 4, 5-6, 8-9 and 12-14 months. It’s also distinctive thanks to its steady nutrient release pattern for optimum growth and performance.
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The bedding plant specialist
Osmocote Bloom provides optimum plant quality through maximum nutrition during the entire crop cycle, plus the selling and early consumer stages. Osmocote Bloom provides plants with all food they need every step of the way from potting to the first consumer phase. Its 100% coated NPK analysis and traces are ideal for bedding plants with a two-to-three-month crop cycle. It’s especially effective for condensed growth in many annuals including petunias and geraniums.
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Prepare ornamentals for multiple growing seasons
The Osmocote PrePlant range prepares ornamental crops for two growing seasons ahead of time with one single application. Safely apply this coated fertiliser directly into plant holes and let nature do the rest. With this efficient plant nutrition, designed for easy GPS application, labour costs will be reduced and improve plants’ overall quality.
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The dual-purpose, second-generation, controlled-release fertiliser
Osmocote Start delivers nutrition to your crops with a short cultivation cycle, or provides refertilisation for up to six weeks. It’s designed especially for compact-growing annual plants with a short cropping cycle. These include violets, marigolds and primulas, along with more salt-sensitive vegetable crops, and cuttings that have difficulty rooting.
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The leading coated fertiliser for topdress applications
Osmocote Topdress is a coated fertiliser designed especially for topdress application in container nursery stock. It can be used to achieve an immediate greening effect. It contains a high nitrogen, magnesium and iron content, to get an immediate greening effect. Containing fast- and slow- release nitrogen and phosphorous, it releases the correct amount of nutrients over a period of 4-5 months. The plants will be greener and stronger for optimum performance.
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Precision Nitrogen & Potassium for high-performance growing
Osmocote N is a fully coated nitrogen & potassium fertiliser. Coated with new advanced coating technology Osmocote N is perfect for pot and bedding plants, perennials and container nursery stock, providing extra nitrogen and potassium, especially required in peat-free and peat-reduced growing media.
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Q&A
Osmocote is the leading controlled release fertiliser (CRF) that delivers nutrients to plants gradually over time, promoting consistent, healthy growth.
Osmocote is ideal for a wide range of crops: ornamental plants, perennials, shrubs, trees, vegetables, and nursery or container-grown plants.
It can be mixed into growing media, incorporated into the soil, or top-dressed onto the surface, depending on the crop and growing method.
Contact the ICL Team for expert guidance tailored to your crop type, growing conditions, and production goals.