diff --git a/homeassistant/components/smartthings/select.py b/homeassistant/components/smartthings/select.py
index b5fb27610c2..99dc7a09f87 100644
--- a/homeassistant/components/smartthings/select.py
+++ b/homeassistant/components/smartthings/select.py
@@ -20,6 +20,17 @@ LAMP_TO_HA = {
     "extraHigh": "extra_high",
 }
 
+WASHER_SOIL_LEVEL_TO_HA = {
+    "none": "none",
+    "heavy": "heavy",
+    "normal": "normal",
+    "light": "light",
+    "extraLight": "extra_light",
+    "extraHeavy": "extra_heavy",
+    "up": "up",
+    "down": "down",
+}
+
 WASHER_SPIN_LEVEL_TO_HA = {
     "none": "none",
     "rinseHold": "rinse_hold",
@@ -122,6 +133,15 @@ CAPABILITIES_TO_SELECT: dict[Capability | str, SmartThingsSelectDescription] = {
         options_map=WASHER_SPIN_LEVEL_TO_HA,
         entity_category=EntityCategory.CONFIG,
     ),
+    Capability.CUSTOM_WASHER_SOIL_LEVEL: SmartThingsSelectDescription(
+        key=Capability.CUSTOM_WASHER_SOIL_LEVEL,
+        translation_key="soil_level",
+        options_attribute=Attribute.SUPPORTED_WASHER_SOIL_LEVEL,
+        status_attribute=Attribute.WASHER_SOIL_LEVEL,
+        command=Command.SET_WASHER_SOIL_LEVEL,
+        options_map=WASHER_SOIL_LEVEL_TO_HA,
+        entity_category=EntityCategory.CONFIG,
+    ),
 }
 
 
diff --git a/homeassistant/components/smartthings/strings.json b/homeassistant/components/smartthings/strings.json
index 27c0eafe811..0d8e5feabc0 100644
--- a/homeassistant/components/smartthings/strings.json
+++ b/homeassistant/components/smartthings/strings.json
@@ -182,6 +182,19 @@
           "1400": "1400",
           "1600": "1600"
         }
+      },
+      "soil_level": {
+        "name": "Soil level",
+        "state": {
+          "none": "None",
+          "heavy": "Heavy",
+          "normal": "Normal",
+          "light": "Light",
+          "extra_light": "Extra light",
+          "extra_heavy": "Extra heavy",
+          "up": "Up",
+          "down": "Down"
+        }
       }
     },
     "sensor": {
diff --git a/tests/components/smartthings/snapshots/test_select.ambr b/tests/components/smartthings/snapshots/test_select.ambr
index 58a206f109c..0ef12a3fe90 100644
--- a/tests/components/smartthings/snapshots/test_select.ambr
+++ b/tests/components/smartthings/snapshots/test_select.ambr
@@ -459,6 +459,70 @@
     'state': 'stop',
   })
 # ---
+# name: test_all_entities[da_wm_wm_000001][select.washer_soil_level-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'options': list([
+        'none',
+        'extra_light',
+        'light',
+        'normal',
+        'heavy',
+        'extra_heavy',
+      ]),
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'select',
+    'entity_category': <EntityCategory.CONFIG: 'config'>,
+    'entity_id': 'select.washer_soil_level',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Soil level',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'supported_features': 0,
+    'translation_key': 'soil_level',
+    'unique_id': 'f984b91d-f250-9d42-3436-33f09a422a47_main_custom.washerSoilLevel_washerSoilLevel_washerSoilLevel',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[da_wm_wm_000001][select.washer_soil_level-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'friendly_name': 'Washer Soil level',
+      'options': list([
+        'none',
+        'extra_light',
+        'light',
+        'normal',
+        'heavy',
+        'extra_heavy',
+      ]),
+    }),
+    'context': <ANY>,
+    'entity_id': 'select.washer_soil_level',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'normal',
+  })
+# ---
 # name: test_all_entities[da_wm_wm_000001][select.washer_spin_level-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({