diff --git a/packages/block-library/src/group/block.json b/packages/block-library/src/group/block.json
index 4fd5f14cfb37f..bd79422311dbb 100644
--- a/packages/block-library/src/group/block.json
+++ b/packages/block-library/src/group/block.json
@@ -61,9 +61,7 @@
 				"fontSize": true
 			}
 		},
-		"__experimentalLayout": {
-			"allowOrientation": false
-		}
+		"__experimentalLayout": true
 	},
 	"editorStyle": "wp-block-group-editor",
 	"style": "wp-block-group"
diff --git a/packages/block-library/src/group/variations.js b/packages/block-library/src/group/variations.js
index f5bf4b6ad222f..a31fe9aad1407 100644
--- a/packages/block-library/src/group/variations.js
+++ b/packages/block-library/src/group/variations.js
@@ -21,7 +21,16 @@ const variations = [
 		attributes: { layout: { type: 'flex' } },
 		scope: [ 'inserter', 'transform' ],
 		isActive: ( blockAttributes ) =>
-			blockAttributes.layout?.type === 'flex',
+			blockAttributes.layout?.type === 'flex' && ( ! blockAttributes.layout?.orientation || blockAttributes.layout?.orientation === 'horizontal' ),
+	},
+	{
+		name: 'group-stack',
+		title: __( 'Stack' ),
+		description: __( 'Blocks stacked in a column.' ),
+		attributes: { layout: { type: 'flex', orientation: 'vertical' } },
+		scope: [ 'inserter', 'transform' ],
+		isActive: ( blockAttributes ) =>
+			blockAttributes.layout?.type === 'flex' && blockAttributes.layout?.orientation === 'vertical',
 	},
 ];