Osmocote Pro is a second-generation, 100% resin-coated controlled-release fertilizer. It provides a steady, pre-determined supply of NPK (nitrogen, phosphorus, potassium), magnesium (MgO), and full trace elements to support plants over a fixed period.
Key Features & Formulations
- Resin-Coated Technology: Delivers a reliable, steady nutrient release pattern tied to soil temperature (calibrated around 21°C).
- Available Longevities:
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- 3–4 months (e.g., 17-11-10 + 2MgO + TE) for short crop cycles or late spring potting.
- 5–6 months (e.g., 19-8-10 + 2MgO + TE) for standard spring potting.
- 8–9 months (e.g., 18-9-10 + 2MgO + TE) for extended growing periods.
- 12–14 months (e.g., 18-9-10 + 2MgO + TE) for long-term or multi-season container/pot feeds.
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How to Use
- Application: Mix the granules thoroughly into the growing medium or potting soil during planting or repotting, or sprinkle evenly on topsoil and lightly blend in. Avoid piling granules directly against the plant stem or crown.
- Dosage: Typically ranges from about half a teaspoon per small pot (or roughly 3–6 grams depending on pot size, such as 3–4g for a 12 cm pot and 5–6g for a 15 cm pot).
- Activation: Lightly water the soil after application to trigger the nutrient release process.






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