Willy the Worm: Plant Watering Sensor

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Willy the Worm Plant Watering Sensor is a fun, terracotta moisture indicator that takes the guesswork out of watering. Pop Willy into the soil and watch his colour change: a darker shade means the soil is moist; a lighter shade tells you it’s time to water. Perfect for beginners or busy plant parents, this simple plant watering sensor helps prevent overwatering and underwatering so your houseplants stay healthier for longer. How to use: Insert Willy into the potting mix near the plant’s roots. Check his colour before watering and allow him to dry between waterings for best results. Details: Material: Terracotta Length: 16 cm Show more