Product description:The SERAMIS® outdoor watering indicator shows you when your outdoor plants need water. It measures the moisture in the soil and in the granules and you only have to read regularly. Our SERAMIS® outdoor watering indicator is a great gardening support so that your plants don't get too little or too much water - because both can be harmful. For best results, we recommend planting your plants in SERAMIS® outdoor granules - this is pre-fertilized and can store water and nutrients particularly well, which it releases to your plants as needed. Application:for: all potted plants outdoors with Seramis granulesProperties:The SERAMIS® watering indicator reliably indicates the watering time for plants in SERAMIS® Planting Granules. The watering indicator measures the moisture in the soil ball with the help of a special glass fibre paper. For pot sizes from 17cmInstructions for use:Insert the watering indicator into the root ball of the plant up to the bottom edge of the display field.Do not remove or turn to readRed = wateringBlue = do not waterImportant:After watering, the watering indicator only changes from "red" to "blue" after about 2 hoursWe recommend replacing the watering indicator after 12-18 months. Package size: 2 pieces