diff --git a/game.go b/game.go
index ada276e..12149d9 100644
--- a/game.go
+++ b/game.go
@@ -114,7 +114,15 @@ func (g *Game) Dig(tile Point) {
 	if !ok {
 		return
 	}
-	g.Balance += desc.SellPrice
+	adjacent := g.Terrain.FlowersOnAdjacentTiles(tile)
+	switch adjacent {
+	case 3:
+		g.Balance += (desc.SellPrice * 3 / 2) // 50% bonus
+	case 4:
+		g.Balance += (desc.SellPrice * 2) // 100% bonus
+	default:
+		g.Balance += desc.SellPrice
+	}
 }
 
 func (g *Game) New() {
diff --git a/map.go b/map.go
index 3d9dcd5..d585564 100644
--- a/map.go
+++ b/map.go
@@ -15,6 +15,23 @@ func (m *Map) AddFlower(pos Point, id string, traits FlowerTraits) {
 	m.Flowers[pos] = m.NewFlower(pos, id, traits)
 }
 
+func (m *Map) FlowersOnAdjacentTiles(pos Point) int {
+	var count int
+	if _, ok := m.Flowers[Pt(pos.X+1, pos.Y)]; ok {
+		count++
+	}
+	if _, ok := m.Flowers[Pt(pos.X-1, pos.Y)]; ok {
+		count++
+	}
+	if _, ok := m.Flowers[Pt(pos.X, pos.Y+1)]; ok {
+		count++
+	}
+	if _, ok := m.Flowers[Pt(pos.X, pos.Y-1)]; ok {
+		count++
+	}
+	return count
+}
+
 func (m *Map) DigFlower(pos Point) string {
 	flower, ok := m.Flowers[pos]
 	if !ok {