Gardena
Gardena Smart Irrigation Control (19032-20)
- Works with HA
- Local control
- Bluetooth
Prices verified September 2026
Our verdict
The garden equivalent of a smart wall switch: a six-valve irrigation controller that talks Bluetooth directly to a phone (or Home Assistant, via a Bluetooth proxy if the controller's outdoors and out of range of your HA host) without needing Gardena's optional Smart Gateway hub at all. That's the appeal over Gardena's cloud-tied 'smart system' line — schedule watering per valve locally, and it keeps working even if Gardena's app backend has a bad day. Range is the catch: Bluetooth-only means you'll likely need one or more ESPHome Bluetooth proxies between the shed and the house for reliable HA control.
What can Home Assistant control on the Gardena Smart Irrigation Control (19032-20)?
Home Assistant's core Gardena Bluetooth integration connects directly over BLE (via Settings > Devices & services > Add Integration > Gardena Bluetooth) and exposes per-valve switch entities plus battery and connectivity sensors — no Gardena cloud account or Smart Gateway required for basic on/off and scheduling control from HA. The device remembers only its last 10 paired Bluetooth adapters, so if you rely on an ESPHome Bluetooth proxy to reach a controller mounted outdoors, that proxy must be paired once before it can hand off connections reliably — swapping proxies later can require re-pairing.
Specs
| valves | Up to 6 independently programmable valves, 24V |
|---|---|
| reset note | A factory reset may be required before initial pairing |
| connectivity | Bluetooth Low Energy; remembers up to 10 previously paired adapters/proxies |
| control apps | GARDENA Bluetooth App (direct) or GARDENA smart App (if paired with the optional smart Gateway, sold separately, for remote/cloud access) |
How does the Gardena Smart Irrigation Control (19032-20) compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| Gardena Smart Irrigation Control (19032-20) (this product) | £251.69 | Bluetooth | Yes | Works with HA |
| Third Reality Smart Soil Moisture Sensor Gen2 (3RSM0347Z) | — | Zigbee | Yes | Zigbee2MQTT / ZHA |
| Third Reality Smart Watering Kit Pro (3RWK0148Z) | — | Zigbee | Yes | Zigbee2MQTT / ZHA |
Frequently asked questions
- Does the Gardena Smart Irrigation Control (19032-20) work with Home Assistant locally?
- Yes. The Gardena Smart Irrigation Control (19032-20) is controlled locally in Home Assistant through a certified "Works with Home Assistant" integration (gardena_bluetooth), so it keeps working if your internet connection or the Gardena cloud goes down. Control and state updates stay on your own network.
- Which protocol does the Gardena Smart Irrigation Control (19032-20) use, and do I need a hub?
- The Gardena Smart Irrigation Control (19032-20) uses Bluetooth. To pair it with Home Assistant you need a Bluetooth adapter on your Home Assistant host or an ESPHome Bluetooth proxy. Gardena's own hub is not required when you integrate through a certified "Works with Home Assistant" integration (gardena_bluetooth).
- How much does the Gardena Smart Irrigation Control (19032-20) cost in the UK?
- The lowest price we have listed for the Gardena Smart Irrigation Control (19032-20) is £251.69 at Amazon UK. Prices were last checked in September 2026 and change often, so confirm on the retailer's page before buying.