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Extract of Barley Straw

250ml treats 1000 gallons (4,500 litres) Available in 250ml, 500ml, 1L, 2.5L, 5L and 25L sizes.

Price:  £ 8.71

Our liquid barley straw extract is a completely natural solution to the problems of algae, blanket weed and green water. Ecopond Extract of Barley Straw helps keep your pond clean and clear.

Regular physical removal of blanket weed from a pond is a time consuming job - and it makes the problem worse.  One way to control blanket weed is by using pads or bales of barley straw itself, but this is a messy, unattractive solution and, because the straw needs to break down to become active, it will take several weeks before it becomes effective.  Ecopond Extract of Barley Straw is a faster-acting, simple, clean, eco-friendly solution to control the growth of algae (both green water and blanket weed).  This pet and wildlife friendly anti-algae liquid product prevents pond water turning green and stops stringy blanket weed from forming.  Extract of Barley Straw contains no synthetic chemicals or artificial pesticides.  It is made in the UK using organic barley straw.  It can be used in any type of pond - fish pond, wildlife pond or swimming pond.  Product stores for up to 18 months.  

We recommend removing as much of any existing blanket weed as possible prior to dosing for best results and to prevent any build up of decaying organic matter.


We can supply Extract of Barley Straw in 25 litre drums for large applications and are happy to provide dosing recommendations. Ecopond Extract of Barley Straw is approved by the DWI (Drinking Water Inspectorate) for use in raw water reservoirs in the United Kingdom

See attached pdf for Dosing Information and answers to other Frequently Asked Questions about Extract of Barley Straw, or go to our News & Tips page to find out more about why algae occurs and how to discourage it.

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Extract of Barley Straw - It's awesome!
After just 56 hours the water clarity is much improved and the blanket weed is noticeably diminished JSW May 2017
"I've been treating our pond with Extract of Barley Straw and I'm pleased to say it's worked fantastically." - S Laing, Royal Borough of Kensington and Chelsea July 2010

Ecopond Extract of Barley Straw.PI.pdf