diff --git a/src/protocols/MyGrowthModel/mygrowthmodel.cpp b/src/protocols/MyGrowthModel/mygrowthmodel.cpp
new file mode 100644
--- /dev/null
+++ b/src/protocols/MyGrowthModel/mygrowthmodel.cpp
@@ -0,0 +1,71 @@
+/*
+ *
+ *  This file is part of the Virtual Leaf.
+ *
+ *  The Virtual Leaf is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  The Virtual Leaf is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with the Virtual Leaf.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Copyright 2010 Roeland Merks.
+ *
+ */
+
+#include <QObject>
+#include <QtGui>
+#include <QDebug>
+#include "simplugin.h"
+#include "parameter.h"
+#include "wallbase.h"
+#include "cellbase.h"
+#include "mygrowthmodel.h"
+#include "pi.h"
+#include "random.h"
+
+QString Mygrowthmodel::ModelID(void) {
+  // specify the name of your model here
+  return QString( "Expanding cell model" );
+}
+
+// return the number of chemicals your model uses
+int Mygrowthmodel::NChem(void) { return 0; }
+
+// To be executed after cell division
+void Mygrowthmodel::OnDivide(ParentInfo *parent_info, CellBase *daughter1, CellBase *daughter2) {
+  // rules to be executed after cell division go here
+  // (e.g., cell differentiation rules)
+}
+
+void Mygrowthmodel::SetCellColor(CellBase *c, QColor *color) { 
+  // add cell coloring rules here
+}
+
+void Mygrowthmodel::CellHouseKeeping(CellBase *c) {
+  // add cell behavioral rules here
+
+  c->EnlargeTargetArea(par->cell_expansion_rate);
+}
+
+void Mygrowthmodel::CelltoCellTransport(Wall *w, double *dchem_c1, double *dchem_c2) {
+  // add biochemical transport rules here
+}
+
+void Mygrowthmodel::WallDynamics(Wall *w, double *dw1, double *dw2) {
+  // add biochemical networks for reactions occuring at walls here
+}
+
+void Mygrowthmodel::CellDynamics(CellBase *c, double *dchem) {
+  // add biochemical networks for intracellular reactions here
+}
+
+Q_EXPORT_PLUGIN2(mygrowthmodel, Mygrowthmodel)
+
+// finis