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

Available to buy today

  • A natural treatment utilising micro-organisms grown on barley straw specifically selected to control and suppress filamentous algae growth (blanketweed) by starving the algae of nutrients
  • Barley-bio Algae Control does not contain any chemicals and is safe for pets, plants, wildlife and children.
  • You cannot overdose this natural product and cause harm. Natural products sometimes work less quickly than available chemical products but offer a safer solution

Supplied in 250ml bottle that treats 4,500 litres (1000 gallons) with initial dose of 125mi (if there is an existing problem) plus weekly dose of 20-40ml per 4,500 litres

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

Should be sufficient for one container pond for one year if you dose with 10ml fortnightly in Spring and Autumn and weekly in Summer or when any green algae starts to appear.

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

4 stars4 stars4 stars4 starsno star


June 2017

Prompt delivery. Plants look ok but had to add a lot of aquatic compost to the pots before sinking in the pond.

5 stars5 stars5 stars5 stars5 stars


September 2016

Excellent plants and service,
Since ordered more!