diff --git a/changelogs/fragments/jinja2_native-fallback-warning.yaml b/changelogs/fragments/jinja2_native-fallback-warning.yaml
new file mode 100644
index 0000000000..ec60a04323
--- /dev/null
+++ b/changelogs/fragments/jinja2_native-fallback-warning.yaml
@@ -0,0 +1,2 @@
+minor_changes:
+  - Add warning about falling back to jinja2_native=false when Jinja2 version is lower than 2.10.
diff --git a/lib/ansible/template/__init__.py b/lib/ansible/template/__init__.py
index e7de0f893d..e336860b4e 100644
--- a/lib/ansible/template/__init__.py
+++ b/lib/ansible/template/__init__.py
@@ -74,6 +74,11 @@ if C.DEFAULT_JINJA2_NATIVE:
     except ImportError:
         from jinja2 import Environment
         from jinja2.utils import concat as j2_concat
+        from jinja2 import __version__ as j2_version
+        display.warning(
+            'jinja2_native requires Jinja 2.10 and above. '
+            'Version detected: %s. Falling back to default.' % j2_version
+        )
 else:
     from jinja2 import Environment
     from jinja2.utils import concat as j2_concat