diff --git a/core/modules/ckeditor5/js/ckeditor5.js b/core/modules/ckeditor5/js/ckeditor5.js
index 29e8f0adb4..860e43a15e 100644
--- a/core/modules/ckeditor5/js/ckeditor5.js
+++ b/core/modules/ckeditor5/js/ckeditor5.js
@@ -218,8 +218,16 @@ function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len
       var id = setElementId(element);
       var ClassicEditor = editorClassic.ClassicEditor;
       ClassicEditor.create(element, editorConfig).then(function (editor) {
-        Drupal.CKEditor5Instances.set(id, editor);
+        var toPx = function() {
+          var element = jQuery('<div style="display: none; font-size: 1.5em; margin: 0; padding:0; height: auto; line-height: 1; border:0;">&nbsp;</div>').appendTo('body');
+          var height = element.height();
+          element.remove();
+          return height;
+        };
 
+        Drupal.CKEditor5Instances.set(id, editor);
+        var rows = editor.sourceElement.getAttribute("rows");
+        editor.ui.view.editable.element.style.minHeight = rows * toPx() + 'px';
         if (element.hasAttribute('required')) {
           required.add(id);
           element.removeAttribute('required');