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Maxwell Advanced Iron Booster 9-0-0 +11Fe Mini

A homogenous granule containing the major plant nutrient responsible for growth. The iron component will also blacken moss and provide a strong colour to grass.

Iron Booster is an extremely flexible fertiliser that can also be used to complement the other products in the ADVANCED RANGE.

Application Rate & Spreader Information

LongevityGranule SizeCutting HeightBag SizeApplication Rate g/m²Bag Coverage
4 - 6 weeksMini 1.0 - 2.5 mmAll turf especially fine turf20 kg30 - 35571 - 667

  • Apply evenly, avoid overlapping or missing areas, using a suitable calibrated fertiliser spreader.
  • If there is no rain within 2 days of application irrigate the treated area thoroughly.
  • Do not apply in hot, dry weather or frosty conditions.
  • Should not be applied to wood, stone or any hard standing areas as staining may occur.

SpreaderApplication RateSingle PassDouble PassSpread Width
Accupro (cone 8)30 g/m²NJ 1/23.3 m
Flex Select30 g/m²17.512.54 m

Product Analysis

IngredientOxide ValueElemental Value
Total Nitrogen (N) 9.00%
    Ammoniacal Nitrogen (NH4) 9.00%
Phosphorus Pentoxide (P2O5)0.00%
    Soluble in neutral ammonium citrate0.00%0.00% P
    Soluble in water 0.00%0.00% P
Potassium Oxide (K2O) soluble in water0.00%0.00% K
    Calcium Oxide (CaO)6.00%4.20% Ca
    Sulphur Trioxide (SO3)30.00%12.00% S
    Iron (Fe) 11.00% Fe

For further information regarding Maxwell Advanced Iron Booster 9-0-0 +11Fe or any of our other turf fertilisers, please contact our technical sales team on 01952 641949.

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 01952 641949.

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