Barley straw for ponds helps control algae growth naturally in garden pond water. Each bag contains barley straw with lavender, which gradually breaks down below the water surface to help reduce conditions that encourage algae. One bale covers up to 2,250 litres (500 gallons), making these pond barley straw bags easy to add to your seasonal pond care routine. Barley Straw Pond Bags for Algae Control As the straw gradually breaks down in water, naturally occurring compounds are released that help inhibit algae growth. For best results, add a bale before algae becomes established rather than waiting for a heavy build up. The added lavender helps improve results compared with using barley straw alone. No measuring or mixing is required before placing the prepared bale into your pond. How to Use Barley Straw for Garden Ponds Thoroughly wet the bale before use to help begin the natural breakdown process. Position it just below the water surface and leave it in place while the contents gradually become darker and waterlogged. Replace with a fresh bale every eight weeks during spring, summer and autumn. Remove the old bag when adding the replacement to prevent unnecessary pond debris. Benefits of Barley Straw with Lavender for Ponds Helps control unwanted algae growth in garden pond water Suitable for use around fish, aquatic plants and pond life Lavender is added to improve results compared with barley straw alone Simple submerged bag format with no mixing or measuring Biodegradable straw contained within a 100% recyclable PE net Suitable for seasonal pond maintenance from spring through autumn Barley Straw Pond Bag Size and Specification Pack size: 2 barley straw pond bags Coverage: Up to 2,250 litres (500 gallons) per bale Contents: Barley straw with added lavender Position: Just below the pond water surface Replacement: Every 8 weeks during spring, summer and autumn Outer net: 100% recyclable PE Straw: Biodegradable Suitable for: Garden ponds, fish ponds and ponds with aquatic plants When to Use Barley Straw Bags in a Pond Add a bale before the warmer part of the season or before algae normally becomes noticeable. The contents require time to break down, so placing them in the water early can provide better results. If algae is already well established, results may be reduced. An additional bale can be added where persistent growth remains. frequently asked questions How many barley straw bags do I need for my pond? Calculate the approximate volume of your pond before use. One bale covers up to 2,250 litres or 500 gallons, so larger ponds may require more than one. Where should I position a barley straw bag in my pond? Place the wetted bale just below the water surface. Choose a position where it can remain submerged without interfering with pond equipment or established aquatic plants. Can I use barley straw in a wildlife pond? Yes. The contents are suitable for use around aquatic life. Position the bale carefully so established habitats and pond plants are not unnecessarily disturbed. Can I use a barley straw pond bag when algae is already present? Yes, but results may be reduced when growth is already well established. Adding the bale earlier in the season gives the straw time to break down before algae becomes more noticeable. What should I do with an old barley straw pond bag? Remove the old bale when replacing it rather than allowing spent material to accumulate in the water. The straw is biodegradable and the PE net is 100% recyclable where suitable local recycling facilities are available.