ICL Sierrablen Plus Turf Starter with Pearl 5-28-0 + 16%MgO

ICL Sierrablen Plus Turf Starter with Pearl 5-28-0 + 16%MgO

This granular fertiliser combines Ostara Pearl® technology with ICL’s premium controlled-release Sierrablen Plus fertiliser. This combination provides significantly increased rooting and more efficient nutrient use over conventional ammonium-phosphate sources.


ICL Sierrablen Plus Turf Starter with Pearl 5-28-0 +16%MgO

Sierrablen Plus Turf Starter includes Pearl® Technology, a unique Root-Activated™ continuous-release phosphorus recovered from phosphorus-rich wastewater. With Pearl Technology, ICL have eliminated the risk of phosphorus leaching into the environment or irreversibly locking onto soil particles: Pearl only releases nutrients in response to organic acids produced by the roots enabling them to be taken up as per the plants requirement. The high phosphorus analysis of Sierrablen Turf Starter has proven popular with turf growers and is ideal when laying new turf. Sierrablen Turf Starter can also aid turf renovations where maximum rooting is essential.

The key benefits of Root-Activated™ continuous-release phosphorus, including increased turf rooting density and better phosphorus use efficiency, have been demonstrated through published independent research trials in the UK and US.

  • Root-Activated™, continuous-release phosphorus, nitrogen and magnesium resulting in increased rooting.
  • Circular nutrients N, P and MgO recovered from phosphorus-rich water streams.
  • Earlier harvest time when used for turf production.
  • Turf response is typically 7 days.

Application Rate and Spreader Settings

Longevity Pack Size (kg) Recommended Rate (g/m)
3 Months 25 20 - 50


Spreader Spread Width (m) Application Rate (g) Single Pass Double Pass
ICL SR2000 or Accupro 2000 (Cone Setting 4) 4.5 20 K J
4.5 30 L
4.5 40 M K
4.5 50 N


Apply the fertiliser with a spreader just after scarifying to allow the granules to disperse into the sward.

Laying Turf

Apply the fertiliser evenly after preparation of the soil and just before laying the turf. The roots of the turf should touch the granules.

Seeding and Over-Seeding

To seed, apply the fertiliser with a spreader and work the fertiliser into the top 3 cm of the soil before seeding. To over-seed, open up the soil and apply the fertiliser with a spreader and re-seed afterwards.

Product Analysis

Ingredient Oxide Value Elemental Value
Total Nitrogen (N) 5.00% 5.00%
    Ammoniacal Nitrogen (NH4) 5.00% 5.00%
Phosphorus Pentoxide (P2O5) 28.00%  
    Phosphorus (P)   12.2%
Potassium Oxide (K2O) soluble in water 0.00% 0.00%
    Potassium (K)   0.00%
Magnesium Oxide (MgO) soluble in water 16.50%  
    Magnesium (Mg)   10.00%

Suggested Period of Use

Application Window
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For further information on ICL Sierrablen Plus Turf Starter with Pearl Technology, please contact a member of our technical sales team on +44 (0)1902 440250.

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

For large orders, please be aware that if you require a smaller 7.5 tonne lorry, the maximum weight for pallets is 750 kg - otherwise the standard pallet size limit of 1000 kg applies.

If you have any access restrictions for lorries or large vehicles please speak to our sales team on +44 (0)1902 440250.

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