Sensor
Three parts, one simple job
light sensor
temp + humidity vents
soil moisture probes
01. SENSOR
In your pot
The Sensor seamlessly plants into your pot and tracks the 4 critical factors for plant health: water, light, temperature and humidity.
Soil moisture
Never over or under water again.
%
Two probes read moisture every 15 minutes. Willow factors in species, soil type and the season, pings you when it's time to water and checks in after to see if you got it right.
Light
Find the right spot. No more guesswork.
LUX
Track ambient light throughout the day and night then get suggestions in the app for better placement based on your plant’s needs.
Humidity
Say goodbye to crispy, droopy leaves.
%
Monitor humidity swings and get notified when conditions drift outside your plant’s comfort range.
Temperature
Comfy conditions, year-round.
°C / °F
Keep an eye on hot/cold spikes, and get recommendations to stabilize temperature around your plant.
02. HUB
In your house
Small but savvy. Plugs into a wall outlet and sends your plant's data to the app, anywhere, any time.
Willow
Your Monstera needs water - soil is below 30% moisture.
03. APP - FREE TO DOWNLOAD
In your pocket
Alerts from your plants, plus expert tips and everything you need to take the guesswork out of plant care.
GETTING STARTED
Up and running in minutes.
No tools. No expertise. Push the Sensor into the soil and Willow takes care of the rest.
1
Unbox
Scan the QR code to download the Willow app on iOS or Android.
2
Connect
Link up your Hub and Sensors in minutes.
3
Plant
Push the Sensor into the soil. The app starts tracking your plant's data.
4
Care
Follow personalised care tips and watch your plants flourish.
Your plants, finally with a voice.
Plant with Willow App
Plant care made easy
What's in the app
Every Willow Sensor comes with the free Willow app.
Alerts
Notifications from your plants delivered straight to your phone.
Plant score
Live happiness score out of 100, updated hourly.
Fertiliser Schedule
Give you plants a boost right on time.
Events + milestones
Capture your plant's progress.
Plant ID
Scan, tap, identify. Know what you're caring for in seconds. Over 1200 species included.
Care guides
Expert-backed care advice from our horticulture team for every plant type.
Want more? Try Willow Grow
Optional subscription. In-depth data, Plant Doctor consults and disease ID.
Willow plans
Get these products
BUILT TO LAST
Custom hardware. Serious engineering.
Willow wasn't built from off-the-shelf parts. Every component was chosen or designed for a specific reason - from the chipset to the probe depth. Two years of development, one very small sensor.
Battery life on a single CR2477 coin cell
Measurement reading interval, around the clock
Plant species in the app
