Chelsea Gold Medal winners for Aquatic Plants 2011 - 2017
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  • Product Details
  • Delivery Information
  • Customer Reviews

Available to buy today

  • Concentrated liquid form of Barley Straw.
  • Works immediately - ideal for patio container ponds.
  • Safe for pets, wildlife and children as it is an organic method of green water and pond algae control

Extract of Barleystraw is supplied in a 250ml bottle which treats up to 4500 litre (1000 gallons) of pond water or will give 25x10ml doses to a patio container pond (should be sufficient for one container for one year if you dose with 10ml fortnightly in Spring and Autumn and weekly in Summer when the water is warmest.)

To calculate the volume of your pond: length x width x depth in feet x 6.25 = volume in gallons.

The volume of our container ponds are: 60cm wide = 45 litres (10 gallons) and 80cm wide = 105 litres (23 gallons)

Read how to plant a container pond on our Tips and Advice pages.

Important delivery information

Plant orders are dispatched to UK destinations only and leave the Nursery on a Monday - Thursday inclusive to avoid the weekend. Your order will be picked in the Nursery and the ready potted plant in its basket or bareroot oxygenator (as specified in the description) will be wrapped that day in damp newspaper and a plastic bag to keep it fresh during transit. Plants will normally be dispatched within a week of our receipt of your order.

All items are then boxed for collection by the courier APC Parcelrite or UKMail that afternoon for expected delivery within 24 hours after despatch (Highlands and Islands excepted)

Please unwrap all plants from their packaging as soon as possible and place in the situations specified on the plant ticket.

Order ValueDelivery Cost
£1.00 - £29.99 £6.00
£30.00 - £99.99 £12.00
£100.00 - £199.99 £24.00
£200+ £36.00

An additional surcharge will be added 
at checkout if your delivery address
is North of Perth (+£10) or an Island 
(+£10 = PO & TR)
(+£25 = Scottish Islands, IM & BT) or 
(+£50 = JE & GY).

Reviews from other Waterside customers

5 stars5 stars5 stars5 stars5 stars


May 2016

Thanks to Linda\'s excellent advice and a speedy delivery, I now have a much healthier looking pond.

5 stars5 stars5 stars5 stars5 stars

Scott Bywater

April 2018

Great plants, great service - thank you

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