• oxide
  • elemental
Nitrogen Total (N) 0%
Phosphorus Pentoxide (P205) 0%
Potassium Oxide (K20) 0%
Iron (Fe) 27.00%
Water soluble 25.40%
Nitrogen Total (N) 0%
Phosphorus (P) 0%
Potassium (K) 0%
Iron (Fe) 27.00%
Water soluble 25.40%



0-1 Months

Granule size


Coated Iron

27 % Fe

  • Advantages
  • Rates
  • MSDS
  • Product Info

Osmocote Coated Iron can be premixed in substrates for pot plants and container nursery stock. For field applications the product can be broadcasted and incorporated in the rooting zone.

Osmocote Coated Iron can be used in combination with base rates of Osmocote Exact and Osmocote Pro. Very good effect on iron demanding crops such as Buxus, Calluna, Cytisus, Hebe, Hydrangea, Pieris, Vinca and Weigelia.


Recommended rates



Peat based


Bark based



0,1-0,3 g/l

0,2-0,4 g/l

Bedding/Pot plants

0,2-0,5 g/l

0,4-0,75 g/l

Container Nursery Stock

0,2-0,5 g/l

0,4-1,0 g/l

Field applications

20-60 g/m²

depending on soil type

and rooting depth of the crop



Rates are based on non-fertilized substrates and need to be lowered when Osmocote Coated Iron is combined with other sources of trace elements such as Osmocote Exact, Osmocote Pro, Osmocote Start, Osmoform or base fertilizers.

This product has been specifically designed for mixing in substrates or soils.

Trial first on a small scale before rate, application or other changes in your cultural practices are implemented. As circumstances can differ and as the application of our products is beyond our control, ICL Specialty Fertilizers cannot be made responsible for any negative results.

Product Info

Osmocote Coated Iron is a fully coated iron sulfate. This product is specially designed for iron demanding crops and can be combined with other Osmocote products for a full fertilization package. Due to its 5-6M longevity it lasts the whole crop cycle.