ICL Sierraform GT Pre-Seeder 18-22-5 Fertiliser 20kg

ICL Sierraform GT Pre-Seeder is a revolutionising high performance micro granular fertiliser designed for use in fine turf through out the year. The individual granules each contain conventional and slow release technology to provide a consistent and sustained release pattern.

SKU: 9781
Sale price£50.10 ex. VAT
£60.12 inc. VAT
(minimum of 1)


ICL Sierraform GT Pre-Seeder 18-22-5 Fertiliser

Nitrogen is the key nutrient for driving growth in a plant. Potassium ensures that your turf is even more resilient to external stresses. A sufficient quantity of Nitrogen and Potassium is released immediately after application, so that the plant can make use of it straight away.

Benefits of ICL Sierraform GT Pre-Seeder:

  • Longevity: 6 - 8 weeks
  • Turf Response: 7 days
  • Granule Dispersal: 2 - 3 days
  • Active at lower temperatures.
  • Slow release Nitrogen and Potassium for sustained performance
  • Even spread at an ultra-low rate applications (20 g/m²)
  • Granules break down and disperse rapidly
  • Low MU content for quick reaction in cooler conditions.
  • Encourages healthy balanced growth at start of season.
  • Phosphate free formulation aids management of soil Phosphorus build-up.

Application Information:

Ideal during over seeding period or when laying turf.

Bag Sizes (kg) Application rate (g/m2) Bag Coverage (m²) Nutrient Levels Applied kg/ha
20 20 1250 36 44 10
25 1000 45 55 12.5
30 833 54 66 15

Periods of use

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

How to Apply

Apply to dry foliage and irrigate after 1 - 2 days if no rain has fallen. Irrigation will aid dispersion and minimise any risk of mower pick-up on close mown surfaces. Try avoiding applications during frosty or drought conditions.

Delay verti-cutting and/or grooming for 3 days after application to allow the granules to disperse.

Nitrogen release is significantly slowed down when soil tgemperatures are less than 10° Watering-in after application will minimize foot printing risk.

For orders of any (same brand or mixed) quantities of ICL fertiliser over 10 bags please ring the office on 01902 440280 for a trade price or for any further information

Click Technical Information for PDF

For further information on ICL Sierraform GT Pre-Seeder, please contact a member of our technical sales team on 01902 440280.

Technical Information

Delivery and Returns

Delivery charge (if applicable) applied at checkout. Next working day delivery is available on some products, as an option on orders placed before 1pm - 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 information.

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 collections information.

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