diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index 23ada120505d5..8f6d666064d01 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -12042,7 +12042,7 @@ def min(
     @doc(Rolling)
     def rolling(
         self,
-        window: int | timedelta | BaseOffset | BaseIndexer,
+        window: int | timedelta | str | BaseOffset | BaseIndexer,
         min_periods: int | None = None,
         center: bool_t = False,
         win_type: str | None = None,
diff --git a/pandas/core/window/rolling.py b/pandas/core/window/rolling.py
index 3e44a5af02178..2abca7d182859 100644
--- a/pandas/core/window/rolling.py
+++ b/pandas/core/window/rolling.py
@@ -922,13 +922,13 @@ class Window(BaseWindow):
 
     Parameters
     ----------
-    window : int, offset, or BaseIndexer subclass
+    window : int, timedelta, str, offset, or BaseIndexer subclass
         Size of the moving window.
 
         If an integer, the fixed number of observations used for
         each window.
 
-        If an offset, the time period of each window. Each
+        If a timedelta, str, or offset, the time period of each window. Each
         window will be a variable sized based on the observations included in
         the time-period. This is only valid for datetimelike indexes.
         To learn more about the offsets & frequency strings, please see `this link