Pro-Kleen Iron Sulphate for Greener Grass & Harder Turf 2.5KG
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Product information
Specifications
Brand:
Pro-Kleen
Pack size:
2.5 kg
Get Healthier and Greener Grass
Pro-Kleen’s Iron Sulphate is the perfect product to use to transform your lawn. It promotes greener and healthier grass – perfect for lawns that need some TLC. Our iron sulphate is an iron-rich, long-lasting fertiliser that encourages your grass to grow a healthy dark green to keep your lawn looking its best, all year round.
3-in-1 Formula for Unbeatable Results
Giving you incredible value for money, Pro-Kleen’s Iron Sulphate is a 3-in-1 formula. It hardens turn, greens grass and also leaves the soil slightly more acidic to improve the quality of your lawn. This prevents you from having to buy multiple products to treat your grass, giving you more value for money!
Hardens Turf for Stronger Grass
This iron sulphate lawn fertiliser hardens turf to keep your grass vibrant, strong and tough throughout all seasons. Hardened turf makes your grass much more robust, helping it to thrive in all weather conditions!
Used by Professionals
Our unique formula is used by professional greenkeepers, lawn keepers, park keepers, sports groundsmen and more! This demonstrates how incredible Pro-Kleen’s Iron Sulphate is, with professionals using it to maintain, strengthen and green up their lawns and sporting fields.
How to Use
Just one of our 2.5kg tubs makes up to 2500 litres when diluted and covers up to 2500m2! It can be applied wet or dry but for best results, we always recommend using it dissolved in water for more even and easy coverage. Always follow the instructions on the back of the container carefully. Please note: do not use on hard surfaces as this can cause staining.
Coverage Rates
For Greening Grass:
2.5kg will cover up to 2500 square metres
1-2g per 1 litre of water per 1 square metre
10-20g per 10L of water per 10 square metres
For Hardening Turf:
2.5kg will cover over 1000 square metres
2-3g per 1 litre of water covers 1 square metre
20-30g per 10 litres of water covers 10 square metres
Reviews
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James
good price, dissolves easily and strengthens the grass. At a high rate good moss control. Easy to apply with a knapsack sprayer. Happy.
25 Dec 2022
Barry Cocker
Always used this and never disappoints
15 Oct 2022
Mr Ray Robson
Great value for money and so easy to use, great results too.
17 May 2022
Lesley Millar
Seems to work. Quick free delivery. No longer mentions control of moss on uses. Wonder why?
2 May 2022
G B******13
Works well easy to use would recommend. Quick and easy to order and delivery good.
9 Apr 2022
Martin Thornley
Didn’t believe the reviews that it started to work nearly straight away but it is true , a remarkable product.
23 Nov 2021
C Green
Does what it says on the can
3 Oct 2021
Simon Gray
Excellent.
29 Jun 2021
Michael
Excellent product. Greens up the grass without causing a growth surge.
24 Jun 2021
Clive Z
I have used this stuff for years, and it works well.
14 Jun 2021
Frequently asked questions
Hi I have 3 small lawns total of 55m2 how much sulphate/ water to green up my 3 lawns in a knapsack ???
Yes, for grass greening mix 1-2g of Iron Sulphate per 1L of water. 1L of the solution will cover 1m² of grass.
Hi it takes me forever to spray 12litres out of my knapsack I must have the wrong nozzle attached could you advise me what size nozzle I should be using on a cooper peglar knapsack pls ????
Usually a flower head nozzle will give the best coverage with your application.
I have used this product to kill moss, used around 4 g of it in a couple of watering cans, they no around 30 litres the lawn has 4x7 m2. It didn t get rid of the moss and in the shady areas is still growing. I have just seeded a few weeks ago, can I apply iron sulfate again?
Please leave the reseeded grass a few months until it is well established to reteat the area again. We would recommend using 5g of the Iron Sulphate in 1l of water to cover 1m2.
I have treated my lawn today at 9 am and by 6 pm we had a very heavy thunderstorm. Do I need to repeat my treatment?
The thunderstorm should help to get deep into the soil.
I have probably used too high a concentration on my lawn. Some of it has turned black after about 10 minutes. I will water it in asap. Is this likely to be fatal to the sparse amount of grass I have left?
It may have burnt your grass so you may need to reseed.
Please follow the label instructions regarding the application
Please follow the label instructions regarding the application
Grass Greening
Mix 1-2g of Iron Sulphate per 1L of water. 1L of the solution will cover 1m² of grass.
Turf Hardening
Mix 2-3g of Iron Sulphate per 1L of water. 1L of the solution will cover 1m² of grass.
You say not to walk from the lawn on a patio after application because staining will occur. How long after application can you walk on the lawn and on to the patio without staining the patio? Thank you.
We would advise you to keep off the watered lawn for a minimum of 12-24 hours but make sure it is fully watered into your lawn after treatment to stop staining on your patio. If the solution is on the surface of the lawn and you walk on it then you would transfer it from your footwear to the patio. Be extra careful to stop staining.
I have a 100m2 lawn how much product and water do I need to put in my 16L knapsack for turf hardening
Mix 2 - 3g of iron sulphate with 1L water, so that would be 32 - 48g with 16L of water for your knapsack. This should cover around 16 square metres, so you would need to fill it approximately 6 times.
How long after application before my greyhound can walk on the grass?
After application to your grass do not allow your pets or children onto the treated area for 12-24 hours.
I have just applied fertilizer, how long should i wait before i can use Proclean iron sulphate
Please wait a minimum of 4 to 6 weeks between using different chemicals.
I have 7ltr watering can. How much sulphate should I add.
For grass greening mix 1-2g of Iron Sulphate per 1L of water. 1L of solution will cover 1m² of grass.
For Turf Hardening Mix 2-3g of Iron Sulphate per 1L of water. 1L of the solution will cover 1m² of grass.
I have a lot of moss on my lawn (and a lot of weeds). I've just applied iron sulphate. Do I need to water it in this evening? How long before I can apply lawn feed and weed? What order do I do things in? Do I scarify before applying lawn weed and feed? How long after applying iron sulphate do I scarify? Then overseed? Thank you.
It can be applied and mixed with warm or lukewarm water to dissolve easier or water can be applied. Do not mix chemicals. Scarify once the moss changes colour and dies. Leave at least 2 weeks before reseeding the lawn.
Hi, I bought two Pro-Kleen 2.5 KG PREMIUM Iron Sulphate. Neither container contains the measuring device/spoon that other brands do. How do I measure 2 grams of iron sulphate. Don't want to apply guesswork and scorch or burn my lawn.
A teaspoon measures around 5 grams. Baking spoons can also be used.
Can I use a watering can with a rose to apply the product to the grass?
Thank you
Please mix the iron sulphate with tepid water and sections. 1L of the solution will cover 1m² of grass.
Two questions were asked about the order to apply, cut grass and scarify. the answers were confusing, 1st said apply, mow then scarify. 2nd said apply,scarify then mow. After applying how long to carry on etc. Please clear up and advise which is correct. Thank you.
Please Apply, waiting until moss starts blackening/dying and scarify. Then mow on high blade setting to collect the scarified dead moss. Then add the dead moss gradually to compost or green waste collection.
Can this product be used on artificial lawns, as i have a lot of moss growing there
We would not advise you to use on artificial grass. But we recommend the Simply Spray & Walk Away
https://www.hygienesuppliesdirect.com/products/prod229020-5-litres-simply-spray-concentrate
https://www.hygienesuppliesdirect.com/products/prod229020-5-litres-simply-spray-concentrate
Hi, I have applied pro Kleen with the intention to remove moss, how long do I need to wait before applying weedkiller? Ideally I would like to kill both moss and weeds before scarifying. Thanks
We would recommend on waiting at least a week before applying a weed killer. If it is a total weed killer in will kill all of your grass.
Can this be applied to treat moss to a lawn that was mowed a week ago?
It can be applied after mowing your lawn.
Can I store Iron Sulphate in a shed. I do not have a tub but it’s in a large bag. Will it go bad in damp / freezing winter conditions?
We would recommend using a zip tie on the large bag and then put into a strong bin liner for storage in your shed. The damp may absorb moisture from the Iron Sulphate but it should still be effective.
I applied the product in late May, 4 days after mowing the grass. How long should I wait before mowing again (the lawn already looks like it needs mowing).
We would advise once the lawn turns black then scarify your lawn before mowing again.
Hi, starting in the spring i will be applying a treatment of Depitiox 500 before Your Pro Kleen Iron Phosphate, scarify and finally oversead. What time gaps would you recommend, particularly between the week kill and moss kill ? Thanks
Once the moss has blackened and been raked away from the lawn, we would advise you to leave one to two weeks before reseeding.
I have added the product in soluble form. Will it need more water in a few days time or is that it?
Always follow the label instructions and mix with warm or tepid water so that the Iron Sulphate dissolves for an easier application. Then leave your treated area for the solution to work.
I have a 12 litre knapsack how much iron sulphur do i have to mix in to kill Moss ?
Mix 5g of Iron Sulphate per 1L of warm or tepid water so the granules dissolve. 1L of the solution will cover 1m² of grass.
Hi I have a major problem with chafer grubs in my lawn,will this help eradicate the grubs? If so what ratio will I need and how long will it take to see any results? Thank you!
No, this will not eradicate Chafer Grubs.
I have saturated my lawn can you please advise a remedy
Approximatley 2 weeks after application the moss will turn black (maybe quicker depending on amount of ferrous sulphate used). Once this starts to occur you would need to remove the dead moss with a scarifier or a suitable hand rake. The treated grass can be cut in the meantime.
I have a 1765m2 garden and a 25 litre sprayer at a 2gram per liter rate per sq meter thatâs 30 runs ? Is that right ? Thatâs a lot of work ?
At 2g ratio per litre of water, you would need 50g of iron sulphate in your 25L sprayer. This would cover 25²m of lawn.
How long after application for moss should I wait before overseeing?
Around 2 weeks the moss will change colour and would then be removed.
I have a crocus lawn but it also has a lot of moss. can I use Prokleen on it.
Yes you can.
How long should I wait before overseeding after applying moss killer treatment?
Remove the moss after it changes colour around 2 weeks after application.
Am I alright to mix iron sulphate with evergreen weed & feed in a drop spreader and if so what are the settings pls.
It's preferable to mix iron sulphate in solution. If the Evergreen Weed & Feed is bigger than the Iron Sulphate, the latter will fall to bottom of feeder and not give even spread.
I have purchased this product.
I do not have any equipment to measure and dilute the iron sulphate with water. Can I just sprinkle the day medium/heavy rain is expected?
No, this method may burn your lawn and make it patchy if the Iron Sulphate is over applied . A teaspoon is approximately 5g and a juice or milk carton or watering cans are available in 1l containers.
Is this product safe to use around children and pets
Once the product has been dissolved in water and applied to the grass, we would advise you to keep children and pets away for at least 24 hours, or until the grass has completely dried. It will be safe for them after this time.
Hi
will this product kill clover, if so what dosage per ltr
No, this will not kill clover.
Can I use iron sulphate on tarmac to rid of Moss? I am scared it will damage or discolour the tarmac.
No it may stain your tarmac . Please use this product instead which wil do the job for you on the link below.
https://www.hygienesuppliesdirect.com/products/prod229020-5-litres-simply-spray-concentrate
https://www.hygienesuppliesdirect.com/products/prod229020-5-litres-simply-spray-concentrate
I have just sprayed my lawn to get rid of the moss... unfortunately the sprayer leaked and went in the composite decking.. I imediately washed it off.. is there anything else I can do to stop it staining or going black?
We would recommend washing with lots of water and try to brush the area removing the leaked Iron Sulphate.
How much Iron Sulphate mixed to what ratio to lower PH level 1 point?
The best method for reducing pH is elemental Sulphur - about 1kg per 10m2 maximum. Iron Sulphate can be used but is not as long lasting as Sulphur but reacts quicker. Maximum dose of 2kg per 10m2. Any higher than these levels can damage plants. Advice is to use cautiously and test in small area.
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Why isn’t there a measuring spoon in pot?
How do I now measure the amount to use?
No, measuring spoon is supplied with this product but can be purchased in most shops. 1 Level teaspoon is approximately 4-5 grams.
What percentage of Iron sulphate is in this product most other companies list the percentage ie 20% etc cheers
The manufacturer advises Ferrous Sulphate heptahydrate will be 98.50% minimum - this is based on taking away all of the maximum impurities.
What is the density of this product (1 kg equates to how many ml)? I want to measure it by volume, rather than by weight.
The dried grade Iron Sulphate is approximately 1kg equates to 1000ml.
Can I use a Miracle gro garden spray feeder which attaches to the hose and how much iron sulphate do I use
We would not recommend using this product with a Miracle Grow Garden Spray Feeder, as you cannot regulate the dosage correctly. For Grass Greening use 1-2g solution to 1L water.
For Moss Killing use 4-5g solution to 1L water.
For Turf Hardening use 2-3g per 1L water.
For Moss Killing use 4-5g solution to 1L water.
For Turf Hardening use 2-3g per 1L water.
I have just reseeded my lawn with new grass seed how long should I wait before I can use the iron sulphate to kill moss on my lawn? Many thanks in advance
Yes, only once the new lawn is well established you can use on a lawn minimum 2 months old.
I have daffodils in flower, will this damage them if spread close to them
No, but do not cover the Daffodils. After treatment feed the Daffodils with a leaf feed.
You recommend 4-5g per litre of water Per sqm to eliminate moss but with a heavily mossed lawn you suggest 2000g in 40 litres to treat 500 sqm which equates to 0.08 litre per sqm . This is a huge difference so could you please clarify
2000g Iron Sulphate will cover 200sqm.
Hi,for 280m2 do I really need to use 280ltrs of water in a backpack sprayer? Regards steve
Application rate of 500g dissolved in 10litres of tepid/warm water you can treat 100m2 with backpack sprayer - for 280m2 you will require 1.4kg dissolved in 28litres.
Use protective gloves/protective clothing/goggles when mixing and applying. Avoid spraying on concrete/stone/wooden surfaces
Why don't you include a measuring scoop with this product, it would make life easier. how many grams in a teaspoon.
Approximately 5 grams to a teaspoon.
I want to use this product to control moss in my lawn. Will it damage the trees planted in my lawn? Thanks.
This will not damage the trees on your lawn.
What happens if the mixture is too strong or too weak ?
If it's too weak how soon before you can try again ?
Please follow the label instructions. If the solution is too strong it can burn your grass.
Hi
I have completely my old grass and have sown new seeds which have now started to grow. Can Pro-Kleen Iron Sulphate be used to help it grow?
The Iron Sulphate will help with turf hardening, grass greening or moss removal.
Can I use this product to kill moss on my tennis court. Will the iron react and discolour the surface?
The Moss will discolour the tennis court and it will turn black.
I overseeded my lawn about 7 weeks ago. I already purchased Pro-Kleen iron sulphate, would it be ok to use it at the grass greening strength?
For greener, healthier looking grass, mix with water at the rate of 10g-20g per 10 litres of water for 10 square metres of lawn. You can use iron sulphate at this concentration at any time of year as long as good soil moisture is available and there is no strong sun or heat!
1g will cover over up to 1 square metres
1-2g per 1 litre of water per 1 square metre
10-20g per 10L of water per 10 square metres.
I have a lawn of around 400 sq M and wish to treat for moss. You say 5g per litre per SqM which translates to 2kg of product but in 400 litres of water. Do I really need to apply 400 litres of water in a knapsack sprayer?
That is the recommended level for moss treatment. 2kg of the product with 400 litres water to cover an area of 400m2.
What is the correct mixture of moss killer per litre reccomended by prokleen.thanks
To eliminate Moss 4-5g per litre of water per square meter is required.
How many times a year can it be applied?
We would recommend this can be used in Autumn, Winter and Spring dependant on what it is to be used for. Twice a year is usual.
For a quick convertion how many grams of sulphate are there per teaspoon . level and heaped
1 Level teaspoon is approximately 4-5 grams.
What is the % iron sulphate in Pro-kleen productd?
The percentage of Iron Sulphate is a minimum of 56%.
Hi - I have 100 square meter garden and a 5ltr water can.
According to the measure: 20-30g per litres of water covers 10 square metres.
Therefore - 30x10 = 300g Pro-Kleen
Then split between x2 water cans, can i mix 150g into each 5l water can.
Then make the 1 pass across the garden ?
I have tested and 10l water can covers the 100 square meter garden.
Please do let me know the correct calculation and working if this is not correct ?
For Moss control use 40/50g per 10 square meters. Thoroughly dissolve this in lukewarm water in a 5Litre watering can, ensuring protective clothing, gloves, glasses are used. Water this 5L can over a 10 square meter patch. Therefore you will require 400/500g for your 100 square meter lawn.
Can product be used on a very dry lawn, with hot temperatures we are getting in the middle of summer.
The Iron Sulphate is best used from September - April. I have provided a link to our Blog:
https://www.prokleen.co.uk/blog/5-reasons-why-the-grass-is-always-greener-with-iron-sulphate
https://www.prokleen.co.uk/blog/5-reasons-why-the-grass-is-always-greener-with-iron-sulphate
How soon after use would you recommend using a scarifier on my lawn
After the moss turns brown, you can rake it loose with a garden scarifier to remove it from the lawn.
Hi, after reading some of the comments I'm confused to how much to mix. My lawn is 130m2. so that would be 130 litres of water. however in the comments you have advised using more product in a 10L/25L mix to reduce the amount of water/runs needed. I was looking at using 2.5g/litre for turf hardening. What mix would you recommend for turf hardening to reduce the amount of water needed and to reduce the number of runs needed in a 10 litre knapsack
2.5g per m2 therefore they need 325g of product.
\nMix ratio is 9 to 10L of iron sulphate solution per 100m2
\nSo if you split area in half ie 65m dissolve 163g into 6L of tepid/warm water - this will mean filling pack twice to cover whole area. Just makes it easier than 1 full pack and a part pack and dividing area into bits.
\nMake sure they protective clothing, avoid spraying on stone/concrete area, wooden fencing/panels/decking etc. Any undissolved product from 1st run can be used in 2nd mix.
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Hi! can i use weedol weed killer at the same time in spray form to kill the other weeds in my lawn was not sure if can?
We would always advise not to mix any chemicals on your lawn.
Is it ok to apply iron sulphate while it is raining?
No, for better results apply when it is not raining.
If the product is applied in soluble form, does it need further watering in? For example is it ok if it does not rain for 7 days after application?
Please follow the instruction label and mix with tepid water so it dissolves easier. If the granules are used neat this will burn and damage your grass.
When proclean iron sulphur granuals are mixed with water and applied to the lawn,
does it feed through the foliar or root system.
regards colin mclaughlan
The uptake is mainly foliar. It kills moss by 'burning' it as Ferrous Sulphate which is slightly acidic.
Hi Guys, having used your product previously with great success I returned to my neglected lawn this spring having not treated for a few years. I’ve applied at the recommended rate for killing moss and there has been improvement however having scarified i can see there is still a lot of moss. Within what timeframe is it safe to repeat the process or should I now wait until autumn? Regards Patrick
Remove clippings after mowing
· If you water, water deeply and infrequently and only if conditions start to dry
· Do NOT water in the evenings
· Do NOT scarify - you'll increase the severity and spread it further
· Anything you can do to improve drying will help e.g. reduce shade, improve air flow, squeegee the moisture off the lawn by brushing or dragging a garden hose across it etc
· Once the disease has ceased aerate and possibly scarify the lawn to improve drying and remove thatch that harbours fungal spores
The Lawn should be treated every spring.
How soon after application can I reseed the lawn?
We would advise you to leave one to two weeks before reseeding.
How soon after using this treatment can we reseed our lawn? Thanks
We would advise you to leave one to two weeks before reseeding.
How soon after applying at moss killing rate can I apply the same treatment again?
We would recommend this can be used in Autumn, Winter and Spring dependant on what it is to be used for. Twice a year is usual.
When using proclean iron sulphate granuals ( when mixed with water) as a spray,as it is a foliar reaction, is it better to leave on grass as long as possible before rain or watering
regards Colin Mclaughlan
This must be mixed as per instructionhs with water to avoid burning your grass.
Hello, i live in spain, do you send your products overseas?
No, we can only ship to the U.K.
For severe moss, can you re apply at 5g per sq/metere per litre, what's the minimum period between doses ?
Please follow the label instructions 5g solution in 1l water will cover 1m2. Once the moss changes colour and is removed. We would recommend applications about 2 weeks apart to find the best mixture to suit your lawn.
I have an Evergreen Lawn Spreader. Can you recommend what setting to use, or how many g/m2, to kill moss please?
We would not recommend using this product with an Evergreen Lawn Spreader as you cannot regulate the dosage. For moss killing use 5g Iron Sulphate to 1L water for every square metre.
Is there any form of fertiliser in iron sulphate and how long after applying the moss killer can you fertilise the lawn with a weed and feed granular ????
The Pro-Kleen Iron Sulphate does not contain fertiliser. We would advise you to leave the lawn two weeks before applying anything to it.
If I have 5 litres of water in my sprayer and want to grass green how much iron sulphate do I use and how far will this cover
You should add 5 - 10g of Iron Sulphate to the 5L of water for grass greening. This should cover around 5²m.
Hi, I have applied this product recently. How long do I need to wait to feed my lawn? I am asking this as most of the fertilizers also contain iron sulphate.
We would advise you to leave the lawn at least two weeks before applying any other product to the treated area.
When can i apply it and does it need watering in
Apply when rain is forecast for best results. If no rain is forecast, thoroughly water the iron sulphate granules into your lawn.
I have a grass reinforcement grid (plastic) which is full of cushion moss. There's almost no grass. I want to kill the moss then add compost and grass seed. Will Prokleen Iron Sulphate kill CUSHION MOSS at 2kg of product in 400litres over 400sq m? I plan to do this next week, so mid April. Thank you.
This will kill cushion moss, the application rate is 5g solution with 1l water to cover 1m2.
Bonjour, pour retirer la mousse du gazon, est-il préférable de tondre avant d'appliquer le sulfate de fer svp?
Nous suggérons une application au moins 2 jours après votre dernière coupe.
Hi just bought three tubs of this product and would like to the meaning of hard turf
Iron Sulphate is an Iron rich and long-lasting fertiliser that will encourage strong growth and healthy dark green grass and also act as a turf hardener making the lawn greener and improving grass quality. to enhance the appearance of the grass and 'harden-off' the grass in readiness for the winter.
How soon after planting grass seeds can I use Pro-Kleen Iron Sulphate?
We would advise using once the lawn is fully established.
Please tell me, what goes first: cutting grass, scarifying, putting iron sulphate. Please tell me the sequence. My grass is covered with moss. I live in an area called Mosshead. I would like to have a better looking grass. Thank you.
We recommend applying iron sulphate first, watering it down, then scarifying once blackened or dying before mowing the grass.
After moss treatment can the dead moss be safely composted
It is recommended that the dead moss is mixed with 4 times as much other matter eg. leaves/ grass etc and then added to compost bin.
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How soon after applying this product to my lawn should I mow and how soon after that should I scarify?
Please leave the treated area for a few weeks for the product to work before scarifying the moss and then mowing the lawn.
My garden is 2200m2 and I am intending to use a 12 Litre Knapsack sprayer. I am only looking to green up the grass. I get that it will take 2.2kg of product @1g per m2, but Iâm struggling to work out how many Knapsacks are required and what volume of product must go into each Knapsack fill. Hopefully you can help. Looking forward to using your product.
The application is 1g per litre = 1 litre per m2 = 2200litres for area = 2200/18 = 183 full Knapsacks each containing 12grammes/12litres<
I wish to put the iron sulphate in a lawn spreader can you please tell me the product code so I can adjust the settings appropriately thank you
The product codes are 232861, 232860, 235501 and 235502, depending on the quantity required.
I am awaiting delivery of the product but would like to know What is the best method of applying it for moss control? The lawn is approx. 300 sq m. Thanks.
We would advise you to mix 4g - 5g with 1L of water, which should cover approximately 1m².
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