diff --git a/homeassistant/components/fyta/sensor.py b/homeassistant/components/fyta/sensor.py
index 0af8b0702cf9..61228c2a534f 100644
--- a/homeassistant/components/fyta/sensor.py
+++ b/homeassistant/components/fyta/sensor.py
@@ -22,6 +22,7 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 from homeassistant.helpers.typing import StateType
+from homeassistant.util import dt as dt_util
 
 from .const import (
     CONF_MAX_ACCEPTABLE,
@@ -132,6 +133,15 @@ SENSORS: Final[list[FytaSensorEntityDescription]] = [
         entity_category=EntityCategory.DIAGNOSTIC,
         value_fn=lambda plant: plant.battery_level,
     ),
+    FytaSensorEntityDescription(
+        key="last_updated",
+        translation_key="last_update",
+        device_class=SensorDeviceClass.TIMESTAMP,
+        entity_category=EntityCategory.DIAGNOSTIC,
+        value_fn=lambda plant: (
+            dt_util.as_local(plant.last_updated) if plant.last_updated else None
+        ),
+    ),
 ]
 
 MEASUREMENT_SENSORS: Final[list[FytaMeasurementSensorEntityDescription]] = [
diff --git a/homeassistant/components/fyta/strings.json b/homeassistant/components/fyta/strings.json
index 7f2062ad7209..15a3c8509722 100644
--- a/homeassistant/components/fyta/strings.json
+++ b/homeassistant/components/fyta/strings.json
@@ -71,6 +71,9 @@
       "last_fertilised": {
         "name": "Last fertilized"
       },
+      "last_update": {
+        "name": "Last update"
+      },
       "light": {
         "name": "Light",
         "state_attributes": {
diff --git a/tests/components/fyta/snapshots/test_sensor.ambr b/tests/components/fyta/snapshots/test_sensor.ambr
index 845760a49bf9..6aa119b52227 100644
--- a/tests/components/fyta/snapshots/test_sensor.ambr
+++ b/tests/components/fyta/snapshots/test_sensor.ambr
@@ -105,6 +105,57 @@
     'state': 'unknown',
   })
 # ---
+# name: test_all_entities[sensor.gummibaum_last_update-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': <EntityCategory.DIAGNOSTIC: 'diagnostic'>,
+    'entity_id': 'sensor.gummibaum_last_update',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Last update',
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TIMESTAMP: 'timestamp'>,
+    'original_icon': None,
+    'original_name': 'Last update',
+    'platform': 'fyta',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': 'last_update',
+    'unique_id': 'ce5f5431554d101905d31797e1232da8-0-last_updated',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[sensor.gummibaum_last_update-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'timestamp',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Gummibaum Last update',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.gummibaum_last_update',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '2023-01-10T18:10:00+00:00',
+  })
+# ---
 # name: test_all_entities[sensor.gummibaum_light-entry]
   EntityRegistryEntrySnapshot({
     'aliases': list([
@@ -1011,6 +1062,57 @@
     'state': 'unknown',
   })
 # ---
+# name: test_all_entities[sensor.kakaobaum_last_update-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': <EntityCategory.DIAGNOSTIC: 'diagnostic'>,
+    'entity_id': 'sensor.kakaobaum_last_update',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Last update',
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TIMESTAMP: 'timestamp'>,
+    'original_icon': None,
+    'original_name': 'Last update',
+    'platform': 'fyta',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': 'last_update',
+    'unique_id': 'ce5f5431554d101905d31797e1232da8-1-last_updated',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[sensor.kakaobaum_last_update-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'timestamp',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Kakaobaum Last update',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.kakaobaum_last_update',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '2023-01-02T18:10:00+00:00',
+  })
+# ---
 # name: test_all_entities[sensor.kakaobaum_light-entry]
   EntityRegistryEntrySnapshot({
     'aliases': list([