diff --git a/pandas/core/arrays/string_.py b/pandas/core/arrays/string_.py
index bdced4c496d14..760366bb30c8e 100644
--- a/pandas/core/arrays/string_.py
+++ b/pandas/core/arrays/string_.py
@@ -34,7 +34,6 @@
     register_extension_dtype,
 )
 from pandas.core.dtypes.common import (
-    is_array_like,
     is_bool_dtype,
     is_integer_dtype,
     is_object_dtype,
@@ -686,8 +685,7 @@ def __setitem__(self, key, value) -> None:
                     f"Cannot set non-string value '{value}' into a StringArray."
                 )
         else:
-            if not is_array_like(value):
-                value = np.asarray(value, dtype=object)
+            value = np.asarray(value, dtype=object)
             if len(value) and not lib.is_string_array(value, skipna=True):
                 raise TypeError("Must provide strings.")