Hydra DeGreen - Removes algae, moss, green fungus, from hard & soft surfaces

Our Price:  £15.80(Inc. 20% VAT)(£13.17 Exc. VAT)
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People who have purchased De-Green have also purchased Hydra Patio CleanUp 

  (5 Reviews)
  • Rapidly removes moss, algae & green fungus, with no need for washing or scrubbing
  • Does not contain acid or bleach, therefore no damage or discoloration to surfaces
  • Biodegradable, non- caustic, safe on a wide range of surfaces
  • Child & pet friendly - make sure area is dry

Brand:  HYDRA



Hydra DeGreen is an easy way to clean all garden surfaces from mould, green fungus, moss and algae. There is no scrubbing, no pressure-washing, or rinsing required. Simply apply and walk away.


Hydra DeGreen works on both hard and soft outdoor surfaces, tackling outdoor residue and organic build-ups, such as moss, mould and algae.

Cleans hard surfaces such as driveways, patios, decking, pathways, fencings, roofs, sheds, garden furniture, greenhouses, terracotta pots, garden statues, UPVC windows, and caravans, motor homes and boats.

Cleans soft surfaces such as protective covers, cushions, sunshades, and astroturf.

It can be used on all materials such as wood, metal, plastic, textile, stone, brick, and glass.


  • Hydra De-Green contains powerful detergents and sequestrants that rapidly dissolve and solubilise outdoor contamination from all hard and soft surfaces.
  • Cleans slippery hard surfaces in gardens and on driveways.
  • Use on Hard Surfaces, i.e., patios, decking, fencing, garden furniture, AstroTurf etc.
  • Use on Soft Surfaces, i.e. sunshades, cushions, protective covers etc.
  • Cleaned surfaces have an invisible protective finish which lasts for up to 6 months.
  • Easy to apply, the made-up solution is sprayed or poured onto the surface to be cleaned; no need to rinse; rain will simply wash it off.


No Discolouration 

Hydra DeGreen does not contain bleach or acid. Therefore it will not damage or discolour treated surfaces.


Biodegradable, non-caustic, no bleach or acid, safe on a wide range of surfaces.

If children and pets are present, ensure the surface is dry before reintroducing them to the treated area.

Maximum Economy

Normal Use

Highly concentrated for maximum economy. 1 litre makes 10 litres of working solution, and 5 litres make 50 litres of working solution.                                                                                          

Heavy Contamination

1 litre makes 5 litres of working of solution, 5 litres makes 25 litres of working solution.                                                                                                                


NOTE - This product is potentially harmful to aquatic and plant life. Not suitable for solar panels. 


Apply the diluted solution to the area to be cleaned through a watering can with a rose or spray bar or pump-up sprayer. Use on a dry day when no rain is expected for at least 5-6 hours.  Do not apply in strong sunlight. In the summer months use late afternoon when sunlight is less intense. Results will start to be seen within 2-3 days. Do not rinse off, no need for scrubbing or pressure washing. Use when temperature is above 5 degrees. 


The best way to clean outdoor cushions is to brush the surface first to remove any loose dirt, then when cleaning outdoor cushions, spray solution over all surfaces and leave to dry, no need to rinse.


The best way to clean wooden garden furniture is to ensure that all loose debris has been brushed off and spray all surfaces with a diluted solution of Hydra DeGreen.


Brush away loose leaves, moss, and debris, then apply diluted solution to the surface by sprayer or watering can and leave to dry, will also act as a composite deck cleaner.


Normal Use: Highly concentrated for maximum economy. 1 litre makes 10 litres of working solution, and 5 litres make 50 litres of working solution.

Heavy Contamination: 1 litre makes 5 litres of working solution, and 5 litres make 25 litres of working solution.

Coverage: 25-litre working solution up to 400²m.


Is this safe to use around animals?

Yes. We advise that you let the treated areas dry before you let your dog/cat near them.

Can I use this on the windows and frames of a conservatory?

Yes, Hydra DeGreen is suitable for both types of material.

Is it suitable for BBQ and hot tub covers?

Yes! You can clean off your garden covers with Hydra DeGreen , including hot tubs and BBQ covers.

Can this be used on an ash felt roof?

Yes, DeGreen is suitable for ash felt roof material.

Can I use this on a marquee?

Yes, you can use DeGreen on a marquee.

Do I need to spray the area with water before I treat it?

No. All we advise you do is clear any debris such as leaves, twigs etc, before applying. Apply and leave it to work. No need to rinse or scrub. We do however advise that you do this on a dry day, and in the summer months, apply in the late evening when the sun is less intense.

Do you dilute this with water or use neat?

You will need to dilute Hydra DeGreen before use, for example,1 litre of Hydra DeGreen needs to be mixed with 10 litres of water.

Can this be used on tarmac?

Yes. If you have a tarmac driveway for example, Hydra DeGreen can be used to clean the green moss/algae away.

Can this be used on artificial grass?

Yes. Hydra DeGreen is safe to use on artificial grass and will not discolour it.

Can this be used to clean a tennis court?

Yes. Hydra DeGreen is ideal to clean surfaces such as tennis courts.

Can this be used on roof tiles?

Yes. You can apply Hydra DeGreen to your roof to clean your roof tiles and clear away the moss build up.

Can this be used on slate patio slabs? Will it discolour the slabs?

Yes, you can use Hydra DeGreen on any patio slabs and because we do not use bleach or acid with our formula, it will not discolour the slabs.

Will it discolour my outdoor cushions?

No. Hydra DeGreen doesn’t contain bleach or acid, therefore will not discolour or damage sensitive material such as textile on your cushions.

Can I use this on my metal and wood patio furniture?

Yes, both metal and wood furniture surfaces can be cleaned with Hydra DeGreen.

Average Rating (5 Reviews):  
Write a Review and share your opinions!

16 March 2022  | 

Just used this product on Monday can't fault it cleared moss and algae off my drive in a matter of hours even though it came on rain after 4 hours, as for the company, first-class order arrived within two days and kept up to date all the time

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2 of 2 people found this review helpful.

Like Magic !
10 November 2021  | 

What an incredible product and truly a joy to use. Can't search hard enough to find something to use it on ! Addictive !! Sprayed our north facing black cladding on our house and grey decking. Plant tubs, pathways, shingle, sailing boat ropes, sleepers around raised flower beds etc ! SO easy to use,no hard labour or back breaking fuss. Does what it says on the tin. We have a two acre plot consisting of two properties, two old work shops, several outbuildings, fences and large new concrete yard.....lots of maintenance and areas that don't catch the sun. The place looks clean and ship-shape. Unbelievable cost for unbelievable results. Well done Hydra. Thank you !

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4 of 4 people found this review helpful.

Happily surprised
22 October 2021  | 

I bought the hydra green and I actually wondered if it would work as many items I have bought elsewhere have said they will remove algae and moss bt was really delighted when i tried this and within 24hrs you could see the moss changing colour and obviously dieing

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2 of 2 people found this review helpful.

Great product
15 July 2021  | 

Great product - simple to use and cleans brilliantly.
Cleaned my BBQ cover, garden parasol and fence panels with ease!

Recommend to anyone!

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3 of 3 people found this review helpful.

08 July 2021  | 

Wow wow wow, what a transformation DeGreen has made to my fence panels! It looks like I've had a new fence fitted in my garden.
Easy to use and absolutely amazing results!
Told my friends to buy some, it's so good!

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3 of 3 people found this review helpful.

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