diff --git a/src/gui/symbology/qgsgraduatedsymbolrendererwidget.cpp b/src/gui/symbology/qgsgraduatedsymbolrendererwidget.cpp
index ad13acd3c0b0..e574a0027e11 100644
--- a/src/gui/symbology/qgsgraduatedsymbolrendererwidget.cpp
+++ b/src/gui/symbology/qgsgraduatedsymbolrendererwidget.cpp
@@ -524,6 +524,9 @@ QgsGraduatedSymbolRendererWidget::QgsGraduatedSymbolRendererWidget( QgsVectorLay
   // initialize from previously set renderer
   updateUiFromRenderer();
 
+  // default to collapsed symmetric group for ui simplicity
+  mGroupBoxSymmetric->setCollapsed( true ); //
+
   // menus for data-defined rotation/size
   QMenu *advMenu = new QMenu( this );
 
@@ -580,7 +583,7 @@ void QgsGraduatedSymbolRendererWidget::connectUpdateHandlers()
   connect( mModel, &QgsGraduatedSymbolRendererModel::rowsMoved, this, &QgsGraduatedSymbolRendererWidget::rowsMoved );
   connect( mModel, &QAbstractItemModel::dataChanged, this, &QgsGraduatedSymbolRendererWidget::modelDataChanged );
 
-  connect( cbxClassifySymmetric, &QAbstractButton::toggled, this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
+  connect( mGroupBoxSymmetric, &QGroupBox::toggled, this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
   connect( cbxAstride, &QAbstractButton::toggled, this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
   connect( cboSymmetryPointForPretty, static_cast<void ( QComboBox::* )( int )>( &QComboBox::activated ), this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
   connect( spinSymmetryPointForOtherMethods, static_cast<void( QgsDoubleSpinBox::* )()>( &QgsDoubleSpinBox::editingFinished ), this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
@@ -601,7 +604,7 @@ void QgsGraduatedSymbolRendererWidget::disconnectUpdateHandlers()
   disconnect( mModel, &QgsGraduatedSymbolRendererModel::rowsMoved, this, &QgsGraduatedSymbolRendererWidget::rowsMoved );
   disconnect( mModel, &QAbstractItemModel::dataChanged, this, &QgsGraduatedSymbolRendererWidget::modelDataChanged );
 
-  disconnect( cbxClassifySymmetric, &QAbstractButton::toggled, this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
+  disconnect( mGroupBoxSymmetric, &QGroupBox::toggled, this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
   disconnect( cbxAstride, &QAbstractButton::toggled, this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
   disconnect( cboSymmetryPointForPretty, static_cast<void ( QComboBox::* )( int )>( &QComboBox::activated ), this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
   disconnect( spinSymmetryPointForOtherMethods, static_cast<void( QgsDoubleSpinBox::* )()>( &QgsDoubleSpinBox::editingFinished ), this, &QgsGraduatedSymbolRendererWidget::classifyGraduated );
@@ -626,7 +629,7 @@ void QgsGraduatedSymbolRendererWidget::updateUiFromRenderer( bool updateCount )
     case QgsGraduatedSymbolRenderer::EqualInterval:
     case QgsGraduatedSymbolRenderer::StdDev:
     {
-      cbxClassifySymmetric->setVisible( true );
+      mGroupBoxSymmetric->setVisible( true );
       cbxAstride->setVisible( true );
       cboSymmetryPointForPretty->setVisible( false );
       spinSymmetryPointForOtherMethods->setVisible( true );
@@ -636,7 +639,7 @@ void QgsGraduatedSymbolRendererWidget::updateUiFromRenderer( bool updateCount )
 
     case QgsGraduatedSymbolRenderer::Pretty:
     {
-      cbxClassifySymmetric->setVisible( true );
+      mGroupBoxSymmetric->setVisible( true );
       cbxAstride->setVisible( true );
       spinSymmetryPointForOtherMethods->setVisible( false );
       cboSymmetryPointForPretty->setVisible( true );
@@ -651,7 +654,7 @@ void QgsGraduatedSymbolRendererWidget::updateUiFromRenderer( bool updateCount )
     case QgsGraduatedSymbolRenderer::Jenks:
     case QgsGraduatedSymbolRenderer::Custom:
     {
-      cbxClassifySymmetric->setVisible( false );
+      mGroupBoxSymmetric->setVisible( false );
       cbxAstride->setVisible( false );
       cboSymmetryPointForPretty->setVisible( false );
       spinSymmetryPointForOtherMethods->setVisible( false );
@@ -662,14 +665,14 @@ void QgsGraduatedSymbolRendererWidget::updateUiFromRenderer( bool updateCount )
 
   if ( mRenderer->useSymmetricMode() )
   {
-    cbxClassifySymmetric->setChecked( true );
+    mGroupBoxSymmetric->setChecked( true );
     spinSymmetryPointForOtherMethods->setEnabled( true );
     cbxAstride->setEnabled( true );
     cboSymmetryPointForPretty->setEnabled( true );
   }
   else
   {
-    cbxClassifySymmetric->setChecked( false );
+    mGroupBoxSymmetric->setChecked( false );
     spinSymmetryPointForOtherMethods->setEnabled( false );
     cbxAstride->setEnabled( false );
     cboSymmetryPointForPretty->setEnabled( false );
@@ -903,7 +906,7 @@ void QgsGraduatedSymbolRendererWidget::classifyGraduated()
       if ( spinSymmetryPointForOtherMethods->value() < ( minimum + ( maximum - minimum ) / 100. ) || spinSymmetryPointForOtherMethods->value() > ( maximum - ( maximum - minimum ) / 100. ) )
         spinSymmetryPointForOtherMethods->setValue( minimum + ( maximum - minimum ) / 2. );
 
-      if ( cbxClassifySymmetric->isChecked() )
+      if ( mGroupBoxSymmetric->isChecked() )
       {
         useSymmetricMode = true;
         symmetryPoint = spinSymmetryPointForOtherMethods->value();
@@ -926,7 +929,7 @@ void QgsGraduatedSymbolRendererWidget::classifyGraduated()
       if ( spinSymmetryPointForOtherMethods->value() < ( minimum + ( maximum - minimum ) / 100. ) || spinSymmetryPointForOtherMethods->value() > ( maximum - ( maximum - minimum ) / 100. ) )
         spinSymmetryPointForOtherMethods->setValue( minimum + ( maximum - minimum ) / 2. );
 
-      if ( cbxClassifySymmetric->isChecked() )
+      if ( mGroupBoxSymmetric->isChecked() )
       {
         useSymmetricMode = true;
         symmetryPoint = spinSymmetryPointForOtherMethods->value();
@@ -938,7 +941,7 @@ void QgsGraduatedSymbolRendererWidget::classifyGraduated()
     case QgsGraduatedSymbolRenderer::Pretty:
     {
       mode = QgsGraduatedSymbolRenderer::Pretty;
-      if ( cbxClassifySymmetric->isChecked() )
+      if ( mGroupBoxSymmetric->isChecked() )
       {
         useSymmetricMode = true;
         astride = cbxAstride->isChecked();
diff --git a/src/ui/qgsgraduatedsymbolrendererv2widget.ui b/src/ui/qgsgraduatedsymbolrendererv2widget.ui
index 65a82b37b96c..a78d4cca2019 100644
--- a/src/ui/qgsgraduatedsymbolrendererv2widget.ui
+++ b/src/ui/qgsgraduatedsymbolrendererv2widget.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>952</width>
-    <height>554</height>
+    <width>482</width>
+    <height>618</height>
    </rect>
   </property>
   <layout class="QGridLayout" name="gridLayout">
@@ -369,87 +369,52 @@ Negative rounds to powers of 10</string>
         </layout>
        </item>
        <item>
-        <layout class="QHBoxLayout" name="horizontalLayout_2">
-         <property name="sizeConstraint">
-          <enum>QLayout::SetDefaultConstraint</enum>
+        <widget class="QgsCollapsibleGroupBoxBasic" name="mGroupBoxSymmetric">
+         <property name="title">
+          <string>Symmetic Classification</string>
          </property>
-         <property name="leftMargin">
-          <number>0</number>
-         </property>
-         <property name="topMargin">
-          <number>0</number>
-         </property>
-         <property name="rightMargin">
-          <number>0</number>
-         </property>
-         <property name="bottomMargin">
-          <number>0</number>
+         <property name="checkable">
+          <bool>true</bool>
          </property>
-         <item>
-          <widget class="QCheckBox" name="cbxClassifySymmetric">
-           <property name="enabled">
-            <bool>true</bool>
-           </property>
-           <property name="visible">
-            <bool>true</bool>
-           </property>
-           <property name="text">
-            <string>Symmetric around:</string>
-           </property>
-           <property name="checkable">
-            <bool>true</bool>
-           </property>
-           <property name="checked">
-            <bool>false</bool>
-           </property>
-           <property name="tristate">
-            <bool>false</bool>
-           </property>
-          </widget>
-         </item>
-         <item>
-          <widget class="QgsDoubleSpinBox" name="spinSymmetryPointForOtherMethods">
-           <property name="specialValueText">
-            <string/>
-           </property>
-           <property name="minimum">
-            <double>-99999999999999995164818811802792197885196090803013355167206819763650035712.000000000000000</double>
-           </property>
-           <property name="maximum">
-            <double>99999999999999995164818811802792197885196090803013355167206819763650035712.000000000000000</double>
-           </property>
-           <property name="value">
-            <double>100.000000000000000</double>
-           </property>
-           <property name="showClearButton" stdset="0">
-            <bool>false</bool>
-           </property>
-          </widget>
-         </item>
-         <item>
-          <widget class="QComboBox" name="cboSymmetryPointForPretty"/>
-         </item>
-         <item>
-          <widget class="QCheckBox" name="cbxAstride">
-           <property name="text">
-            <string>with a class astride that value</string>
-           </property>
-          </widget>
-         </item>
-         <item>
-          <spacer name="horizontalSpacer">
-           <property name="orientation">
-            <enum>Qt::Horizontal</enum>
-           </property>
-           <property name="sizeHint" stdset="0">
-            <size>
-             <width>40</width>
-             <height>20</height>
-            </size>
-           </property>
-          </spacer>
-         </item>
-        </layout>
+         <layout class="QGridLayout" name="gridLayout_2" columnstretch="0,1">
+          <item row="0" column="1">
+           <widget class="QgsDoubleSpinBox" name="spinSymmetryPointForOtherMethods">
+            <property name="specialValueText">
+             <string/>
+            </property>
+            <property name="minimum">
+             <double>-99999999999999995164818811802792197885196090803013355167206819763650035712.000000000000000</double>
+            </property>
+            <property name="maximum">
+             <double>99999999999999995164818811802792197885196090803013355167206819763650035712.000000000000000</double>
+            </property>
+            <property name="value">
+             <double>100.000000000000000</double>
+            </property>
+            <property name="showClearButton" stdset="0">
+             <bool>false</bool>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="0">
+           <widget class="QLabel" name="label_2">
+            <property name="text">
+             <string>Around</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="0" colspan="2">
+           <widget class="QComboBox" name="cboSymmetryPointForPretty"/>
+          </item>
+          <item row="2" column="0" colspan="2">
+           <widget class="QCheckBox" name="cbxAstride">
+            <property name="text">
+             <string>Create class astride symmetry value</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
        </item>
        <item>
         <layout class="QHBoxLayout" name="horizontalLayout_3">
@@ -548,15 +513,15 @@ Negative rounds to powers of 10</string>
    <header>qgsdoublespinbox.h</header>
   </customwidget>
   <customwidget>
-   <class>QgsFieldExpressionWidget</class>
+   <class>QgsUnitSelectionWidget</class>
    <extends>QWidget</extends>
-   <header>qgsfieldexpressionwidget.h</header>
+   <header>qgsunitselectionwidget.h</header>
    <container>1</container>
   </customwidget>
   <customwidget>
-   <class>QgsUnitSelectionWidget</class>
+   <class>QgsFieldExpressionWidget</class>
    <extends>QWidget</extends>
-   <header>qgsunitselectionwidget.h</header>
+   <header>qgsfieldexpressionwidget.h</header>
    <container>1</container>
   </customwidget>
   <customwidget>
@@ -571,6 +536,12 @@ Negative rounds to powers of 10</string>
    <header>qgsgraduatedhistogramwidget.h</header>
    <container>1</container>
   </customwidget>
+  <customwidget>
+   <class>QgsCollapsibleGroupBoxBasic</class>
+   <extends>QGroupBox</extends>
+   <header>qgscollapsiblegroupbox.h</header>
+   <container>1</container>
+  </customwidget>
  </customwidgets>
  <tabstops>
   <tabstop>mExpressionWidget</tabstop>