diff --git a/homeassistant/components/gardena_bluetooth/sensor.py b/homeassistant/components/gardena_bluetooth/sensor.py
index 396d8469ffcf8d..495a1fcb1eb968 100644
--- a/homeassistant/components/gardena_bluetooth/sensor.py
+++ b/homeassistant/components/gardena_bluetooth/sensor.py
@@ -88,7 +88,6 @@ def context(self) -> set[str]:
     GardenaBluetoothSensorEntityDescription(
         key=Sensor.measurement_timestamp.uuid,
         translation_key="sensor_measurement_timestamp",
-        state_class=SensorStateClass.MEASUREMENT,
         device_class=SensorDeviceClass.TIMESTAMP,
         entity_category=EntityCategory.DIAGNOSTIC,
         char=Sensor.measurement_timestamp,