Willy the Worm: Plant Watering Sensor
🚚 Free UK shipping on orders over £50 🪴
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
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Standard UK Delivery
Tracked delivery within 1–3 working days to most UK postcodes (excl. Northern Ireland).
Orders under £15 – £5.95
Orders £15–£34.99 – £4.95
Orders £35–£49.99 – £3.95
Orders £50+ – FREE
Local Hand Delivery (Edinburgh)
£7.95 flat rate. Monday–Friday delivery to EH1–EH22, EH28 and EH29. Select your delivery date at checkout. Required for large plants, terrariums and fragile items.
Store Pickup
Free collection within 1 hour from our St Vincent Street shop (EH3 6SH).
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meet the plant gurus
At grow urban, we're passionate about helping people create greener, happier homes through plants.
From our Edinburgh plant shop, our team of Plant Gurus carefully hand-pick every plant and botanical product we sell, ensuring it arrives looking its very best.
Whether you're searching for your first houseplant or adding to an ever-growing collection, we're here to share expert advice and help your plants thrive.
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what to expect when you order
We offer happy, healthy plants that are carefully hand-picked and delivered straight to your door from our plant shop.
We will deliver to you in recyclable boxes and we use paper materials and compostable bubble wrap! Our Plant Gurus will ensure that your plants are safe and secure for the journey to their new home!