COMPO Expert·Macronutrients
Coated controlled-release NPK 13-5-18(+2), high in potassium with magnesium and trace elements; feeds potted and flowering plants for 3 months.
Main advantages
About this product
Basacote High K 3M 13-5-18(+2) is a fully polymer-coated, controlled-release NPK granular fertilizer weighted toward potassium and enriched with magnesium and trace elements. Its frost-resistant coating meters nutrients evenly over about three months, matching plant uptake while limiting leaching and salinity. Designed for potting soils and substrate mixtures, it suits flowering plants, ornamentals and phosphorus-sensitive crops, applied as a depot mix, top dress or plant-hole placement at potting.
At a glance
Nutrient composition
NPK blend
Values are % nutrient by mass. Balanced blend for starter nutrition.
Nitrogen (N)
13%
Vegetative growth, leaf mass
Phosphorus (P₂O₅)
5%
Root development + flowering
Potassium (K₂O)
18%
Hardiness + grain fill
Application
Full specifications
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Questions & answers
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