Ferromex ® Lawn Moss Killer 5L

Ferromex is a moss killer, for use as a home garden treatment to control moss in lawns. Containing 4.6% nitrogen and 16.0% Iron sulphate w/w.

Price ex. VAT: 30.00

Price inc. VAT: 36.90

SKU: 2950 Category:

Ferromex ® 5 L – Herbicide

Active Substance: 381.15 g/l iron sulphate

Ferromex® is a liquid herbicide formulated to control moss in lawns. The 4.6% w/w ureic nitrogen content will also promote grass growth, helping the sward to thicken and infill sparse areas.

Instructions for use

Where to use Ferromex

For use on lawns as a home garden treatment to control moss.

When to use

Apply when moss and grass are actively growing consistenly and soil temperatures are between 7°C—21°C.

Product Overview
Product TypeHerbicide (moss killer)
Product NameFerromex®
PCS No.05652
Active Substances381.15 g/l iron sulphate
FormulationLiquid (soluble concentrate)
Areas of UseLawn
Maximum Individual Dose150 l/ha
Maximum Applications Per Year3
Ferromex Application Window

How to use Ferromex

Ferromex® can be applied via hydraulic sprayer or watering can. 3 days after and 4 days before mowing. Blackened moss should be ready to rake out 7-10 days post application.

Retreatment may be necessary for heavy infestations.

Mosses are none vascular plants perfectly adapted to colonising environments rapidly. Populations may return as a result of environmental conditions which favour its development. In such cases up to three applications can be made in any one year.

ApplicatorApplication RateWater VolumePack Size (L)Pack Coverage (m2)
Knapsack15 ml/m250-85 ml/m25333
*Watering can16.6 ml/l900 ml/m25301

*Watering can rates equate to 150 ml of Ferromex diluted in 9 L of water per 10 m2.

Maximum IndividualMaximum NumberLatest Application
150 l/ha3 per yearEarly autumn, when turf grass growth remains active
Oxide ValueElemental Value
Total Nitrogen (N)4.6%
Ureic Nitrogen (N)4.6%
Iron Sulphate16.0% Fe
Specific Gravity1.2
Values Stated as w/w

Additional Information

Apply evenly, avoid overlapping or missing areas. 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. Half fill the applicator with clean water. Add concentrate as required and mix thoroughly whilst adding remaining water. Avoid walking on and exclude pets from treated areas until dry. Concentrate should not be applied directly onto lawns.

Avoid application onto hard surfaces and paving, wash off immediately to minimise oxidised staining.

This product is not classified as hazardous for supply or for transport. Please refer to the associated safety data sheet for full information and guidance on safe transport, storage, handling, use and disposal of this product.

For further information on Ferromex, please contact a member of our technical sales team on +353 (0)1 841 7399.

Delivery Information

Delivery charges (if applicable) applied at checkout. Next working day delivery is available on ‘In Stock’ items, on orders placed before 12 noon. Please allow 3-5 working days on all other orders – possibly longer during the festive season & bank holidays. Please note deliveries to more remote areas may also take longer. More delivery info Please Note: If you have any access restrictions for lorries or large vehicles please speak to our sales team on . Collection from our Naul, Co. Dublin, Trade Counter is available for this product. More info on collections


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Ferromex® 5 L - Ferromex Retail Label 5L

Ferromex® 5 L - SDS (Safety Data Sheet)

Price ex. VAT: 30.00

Price inc. VAT: 36.90

SKU: 2950 Category:

Ferromex ® 5 L - Moss Killer
Ferromex ® Lawn Moss Killer 5L