diff --git a/assets/ui/disabled_cross.png b/assets/ui/disabled_cross.png
new file mode 100644
index 0000000..f190455
Binary files /dev/null and b/assets/ui/disabled_cross.png differ
diff --git a/assets/ui/disabled_grass.png b/assets/ui/disabled_grass.png
new file mode 100644
index 0000000..d80407e
Binary files /dev/null and b/assets/ui/disabled_grass.png differ
diff --git a/assets/ui/disabled_tree.png b/assets/ui/disabled_tree.png
new file mode 100644
index 0000000..dac2bbd
Binary files /dev/null and b/assets/ui/disabled_tree.png differ
diff --git a/assets/ui/enabled_cross.png b/assets/ui/enabled_cross.png
new file mode 100644
index 0000000..933834e
Binary files /dev/null and b/assets/ui/enabled_cross.png differ
diff --git a/assets/ui/enabled_grass.png b/assets/ui/enabled_grass.png
new file mode 100644
index 0000000..aae4eb4
Binary files /dev/null and b/assets/ui/enabled_grass.png differ
diff --git a/assets/ui/enabled_tree.png b/assets/ui/enabled_tree.png
new file mode 100644
index 0000000..6019c1d
Binary files /dev/null and b/assets/ui/enabled_tree.png differ
diff --git a/assets/ui/tree.png b/assets/ui/tree.png
deleted file mode 100644
index e782798..0000000
Binary files a/assets/ui/tree.png and /dev/null differ
diff --git a/assets/ui/tree_disabled.png b/assets/ui/tree_disabled.png
deleted file mode 100644
index 4782b30..0000000
Binary files a/assets/ui/tree_disabled.png and /dev/null differ
diff --git a/src/map.rs b/src/map.rs
index f886b44..998cf0b 100644
--- a/src/map.rs
+++ b/src/map.rs
@@ -176,6 +176,17 @@ fn setup(
                                 },
                                 _ => {}
                             },
+                            CellKind::Grass => match cell.kind {
+                                CellKind::Dirt => {
+                                    cmds.entity(trigger.target).insert((Wealth(0), Regeneration {
+                                        last_update: gt.current,
+                                        full_growth_duration: CellKind::Grass.regen_full_growth_duration()
+                                    }));
+                                    cell.kind = CellKind::Grass;
+                                    map_needs_update.single_mut().0 = true;
+                                },
+                                _ => {}
+                            }
                             _ => {}
                         }
                     }
diff --git a/src/ui.rs b/src/ui.rs
index e7a9a08..6059389 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -9,7 +9,12 @@ impl bevy::prelude::Plugin for Plugin {
         app.init_resource::<CurrentAction>()
             .add_systems(Startup, setup)
             .add_systems(Update, zoom_with_scroll);
-        embedded_asset!(app, "../assets/ui/tree.png");
+        embedded_asset!(app, "../assets/ui/enabled_tree.png");
+        embedded_asset!(app, "../assets/ui/disabled_tree.png");
+        embedded_asset!(app, "../assets/ui/enabled_grass.png");
+        embedded_asset!(app, "../assets/ui/disabled_grass.png");
+        embedded_asset!(app, "../assets/ui/enabled_cross.png");
+        embedded_asset!(app, "../assets/ui/disabled_cross.png");
     }
 }
 
@@ -95,10 +100,9 @@ fn setup(
                 align_self: AlignSelf::FlexEnd,
             !};
             Button;
-            BorderColor(#F00);
             BackgroundColor(#77767b);
             [
-                ImageNode::new(asset_server.load("embedded://forestiles/../assets/ui/tree.png"));
+                ImageNode::new(asset_server.load("embedded://forestiles/../assets/ui/enabled_tree.png"));
                 Node {
                     height: 80%,
                     margin: [>1vh],
@@ -109,6 +113,30 @@ fn setup(
                     }
                 });
             ]
+            [
+                ImageNode::new(asset_server.load("embedded://forestiles/../assets/ui/enabled_grass.png"));
+                Node {
+                    height: 80%,
+                    margin: [>1vh],
+                !};
+                .observe(|trigger: Trigger<Pointer<Click>>, mut ca: ResMut<CurrentAction>| {
+                    if trigger.button == PointerButton::Primary {
+                        *ca = CurrentAction::ChangeCell(CellKind::Grass);
+                    }
+                });
+            ]
+            [
+                ImageNode::new(asset_server.load("embedded://forestiles/../assets/ui/enabled_cross.png"));
+                Node {
+                    height: 80%,
+                    margin: [>1vh],
+                !};
+                .observe(|trigger: Trigger<Pointer<Click>>, mut ca: ResMut<CurrentAction>| {
+                    if trigger.button == PointerButton::Primary {
+                        *ca = CurrentAction::None;
+                    }
+                });
+            ]
         ]
     }
 }