Nutrifield Autofeed Root Control Disc Round XL

Root Control Discs are black and gold, placed under pots to prevent roots from growing towards the AQUAvalve. They are effective due to a metallic gold coating.

• The description claims that the discs are very effective due to a special metallic gold coating.
• The description claims that roots can grow through concrete and advises occasional inspection.
• The description claims that discs should be replaced at the start of each season to prevent disease transfer.