ICL Sierrablen 27-5-5 (8-9 Months)

ICL Sierrablen 27-5-5 (8-9 Months)

ICL Sierrablen is the premier brand of controlled release nutrition for amenity turf. Polymer coated granules provide an extended longevity with a consistent nutrient release pattern. At soil temperatures just above 0 degrees centigrade, pressure starts to build up within the granule forcing the nutrients through the semi-permeable resign coating. The combination of resin and Poly-S technology in the same analyses results in improved Nitrogen release characteristics and better low temperature performance.

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ICL Sierrablen 27-5-5 (8-9 Months) Fertiliser

ICL Sierrablen is the premier brand of controlled release nutrition for amenity turf. Polymer coated granules provide an extended longevity with a consistent nutrient release pattern. On application to turf, the Everris Sierrablen granule takes up moisture from its' environment, gradually dissolving the enclosed nutrients. At soil temperatures just above 0 degrees centigrade, pressure starts to build up within the granule forcing the nutrients through the semi-permeable resign coating. The thicker the coating, the slower the daily release rate and so the longer the product lasts. Therefore nutrient is accurately released, matched exactly to turf growth requirements. The combination of resin and Poly-S technology in the same analyses results in improved Nitrogen release characteristics and better low temperature performance.

ICL Sierrablen - Working Principle of a Resin Coated Granule

Granules contain NPK, B, Cu, Fe, Mn, Mo and Zn (Mg is added for specific products Water penetrates through the coating and dissolves the nutrients inside the granule The nutrients are released at a constant and controlled rate during longevity

Benefits of Sierrablen Fertiliser:
  • Longevity: 4-5 months, 5-6 and 8-9 months depending on product.
  • Turf Response: 10 days.
  • Granule Dispersal: 10 days.
  • Can be used as a base feed at lower rates and supplemented with additional nutrients as required.
  • Nitrogen only released in conditions favourable to turf grass growth therefore helping to pre-stress condition the plant.
  • Controlled released nitrogen matches plant requirements to give continuous growth over 4-5 months.
  • Sierrablen has been designed for specific growth stages so that nutrients are released at the optimum rate according to plant requirements.
  • Contains iron to enhance colour.

Application Information:

Bag Sizes (kg) Application rate (g/m2) Bag Coverage (m²) Nutrient Levels Applied kg/ha
N P K
25 30 625 108 20 20
50 500 135 25 25
60 417 162 30 30

Periods of use
J F M A M J J A S O N D

For orders of any (same brand or mixed) quantities of ICL fertiliser over 10 bags please ring the office on 01902 440250 for a trade price or for any further information

Click PDF for technical Information

Delivery charge (if applicable) applied at checkout. Next working day delivery is available on this product, as an option on orders placed before 12 noon - excludes festive season & bank holidays. Please note deliveries to Highlands, Cornwall and more remote areas may take longer. Surcharges apply for non mainland locations, call for more information. More delivery info


Please Note: If you have any access restrictions for lorries or large vehicles please speak to our sales team on 01902 440250.


Collection from our Telford, Shropshire, Trade Counter is available for this product. More info on collections