Harvst WaterMate Mini – Automatic Greenhouse Watering Kit
£349.99
The WaterMate Mini automatic watering system is a complete irrigation kit for greenhouses up to 6′ x 8′.
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Harvst WaterMate Mini – Smart Automatic Watering System (Up to 6m²)
The Harvst WaterMate Mini is a compact, automatic watering system perfect for smaller growing spaces like greenhouses, garden beds, and patios. Designed for ease of use and precision, it delivers reliable irrigation across two zones, helping reduce water usage while promoting stronger, healthier plants.
This UK-made system is ideal for anyone looking to automate their watering routine without overcomplicating their setup. From potted plants to small allotments, the WaterMate Mini handles it all.
Key Features:
- Waters up to 6m² (ideal for small gardens and greenhouses)
- Dual-zone control for tailored watering
- Programmable timer with temperature sensor for smart, responsive watering
- Solar or mains powered - no batteries to replace
- WiFi-enabled (runs offline too) with remote monitoring & email alerts
- Simple to set up and easy to expand
Perfect For:
- Greenhouses up to 6m²
- Garden beds & allotments
- Pots, window boxes, and hanging basketsFree your time, conserve water, and maintain consistent moisture for healthier plants and better yields, even when you’re away.
Choosing a Power Supply
Why choose solar power?
If you don’t have mains electricity in your greenhouse or polytunnel, with WaterMate you can still have powerful automatic watering. The battery is charged by a small solar panel which should be mounted outside to catch the most sun. Up to 10 minutes of watering time is possible per day in the summer (5 minutes most at one time).
Supplied with 3m of cable, extensions available.
Why choose mains power?
If you have 240v power, we recommend you use the mains version. You will be able to water for longer periods (if required … the pump can deliver plenty of water in just a couple of minutes), and won’t be limited by darker days in winter. You will be able to add more pumps/misters or even LED grow light, heated seed trays for propagation, or heater cables.
The power supply comes with 5m of mains flex.
What's in the kit?
The watering kit contains:
- WaterMate control unit (approx 190mm x 120mm x 45mm)
- Control unit mounting plate
- Solar panel or power supply
- Mini submersible water pump, 45mm diameter (for pump version)
- An air temperature sensor
- Dual electric water valves
- 4m of 13mm braided hose for connecting the pump.
- 10m LDPE distribution pipe
- A selection of joints and pipe fittings
- 10 greenhouse frame pipe fixings
- 20m of 4mm micro irrigation pipe
- 24 x pressure compensated drippers (4 litres per hour) and ground stakes
- 12 x 4mm hose adapters
- 10 x 360deg sprayers covering 1m2 each
- 10 x 180deg sprayers covering 1m2 each
- 6 x 4mm water taps
- Web app for Android and iPhone
About the Manufacturer
Harvst: Our mission is to help you grow more.
For fresher food.
Grow more greens.
Grow more salad.
Grow more vegtables.
Eat fresh, all year round.
For our environment.
Fewer food miles.
Less nasty pesticides.
Less single use plastic.
It’s better to grow your own.
For you and your family.
For your health & wellbeing.
To teach your kids about growing.
To engage with nature.
Grow more, together.
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