Garden Worm Plant Water Sensor

This plant water sensor, nicknamed Willy the Worm, is a cheerful little terracotta moisture sensor that takes the guesswork out of watering. Pop him into the soil beside your houseplant or in the garden, and he will tell you exactly when it is time to water. When the soil is moist, Willy stays his usual warm terracotta shade; as the soil dries, he lightens in colour — a simple, at-a-glance signal that your plant needs a drink.

Finished with gift wrapping, if you'd like it — simply add it at checkout.

No batteries, no apps, no fuss — just a friendly face peeking out of the pot as a clever little houseplant gadget for the indoor garden. A delightful, genuinely useful, and quirky novelty gift for a houseplant lover, a keen gardener, or anyone who has ever lost a plant to uncertain watering — perfect for a birthday, Christmas, a new home, a teacher, or an easy stocking filler.

Also available as a set of 3.

Why we love this: Overwatering kills just as many houseplants as underwatering, and most of us are guessing. Willy solves that problem in the most charming way possible — and we defy anyone to look at his little face peeking out of a plant pot and not smile. Small in size, very big on personality.

Size: Approx. 16cm in length

Good to know: Orders are usually dispatched within 2–3 working days, or from 25th October for orders placed while we're away (a little longer for special or custom pieces), sent via Royal Mail Tracked 48. Not quite right for you? We accept returns within 30 days of delivery — just get in touch and we'll sort it.