diff --git a/mods/default/nodes.lua b/mods/default/nodes.lua
index 65b9fb9e..b37f1132 100644
--- a/mods/default/nodes.lua
+++ b/mods/default/nodes.lua
@@ -523,7 +523,7 @@ minetest.register_node("default:sapling", {
 	on_timer = default.grow_sapling,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
+		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
 	},
 	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
 		attached_node = 1, sapling = 1},
@@ -588,7 +588,7 @@ minetest.register_node("default:apple", {
 	is_ground_content = false,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.2, -0.5, -0.2, 0.2, 0, 0.2}
+		fixed = {-3 / 16, -7 / 16, -3 / 16, 3 / 16, 4 / 16, 3 / 16}
 	},
 	groups = {fleshy = 3, dig_immediate = 3, flammable = 2,
 		leafdecay = 3, leafdecay_drop = 1},
@@ -659,7 +659,7 @@ minetest.register_node("default:junglesapling", {
 	on_timer = default.grow_sapling,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
+		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
 	},
 	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
 		attached_node = 1, sapling = 1},
@@ -739,7 +739,7 @@ minetest.register_node("default:pine_sapling", {
 	on_timer = default.grow_sapling,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
+		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
 	},
 	groups = {snappy = 2, dig_immediate = 3, flammable = 3,
 		attached_node = 1, sapling = 1},
@@ -819,7 +819,7 @@ minetest.register_node("default:acacia_sapling", {
 	on_timer = default.grow_sapling,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
+		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, 7 / 16, 4 / 16}
 	},
 	groups = {snappy = 2, dig_immediate = 3, flammable = 2,
 		attached_node = 1, sapling = 1},
@@ -898,7 +898,7 @@ minetest.register_node("default:aspen_sapling", {
 	on_timer = default.grow_sapling,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0.35, 0.3}
+		fixed = {-3 / 16, -0.5, -3 / 16, 3 / 16, 0.5, 3 / 16}
 	},
 	groups = {snappy = 2, dig_immediate = 3, flammable = 3,
 		attached_node = 1, sapling = 1},
@@ -1061,7 +1061,7 @@ minetest.register_node("default:papyrus", {
 	walkable = false,
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0.5, 0.3}
+		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, 0.5, 6 / 16},
 	},
 	groups = {snappy = 3, flammable = 2},
 	sounds = default.node_sound_leaves_defaults(),
@@ -1087,7 +1087,7 @@ minetest.register_node("default:dry_shrub", {
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
+		fixed = {-5 / 16, -0.5, -5 / 16, 5 / 16, 4 / 16, 5 / 16},
 	},
 })
 
@@ -1107,7 +1107,7 @@ minetest.register_node("default:junglegrass", {
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
+		fixed = {-7 / 16, -0.5, -7 / 16, 7 / 16, 1.19, 7 / 16},
 	},
 })
 
@@ -1128,7 +1128,7 @@ minetest.register_node("default:grass_1", {
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
+		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -5 / 16, 6 / 16},
 	},
 
 	on_place = function(itemstack, placer, pointed_thing)
@@ -1158,7 +1158,7 @@ for i = 2, 5 do
 		sounds = default.node_sound_leaves_defaults(),
 		selection_box = {
 			type = "fixed",
-			fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
+			fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -3 / 16, 6 / 16},
 		},
 	})
 end
@@ -1180,7 +1180,7 @@ minetest.register_node("default:dry_grass_1", {
 	sounds = default.node_sound_leaves_defaults(),
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
+		fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -3 / 16, 6 / 16},
 	},
 
 	on_place = function(itemstack, placer, pointed_thing)
@@ -1210,7 +1210,7 @@ for i = 2, 5 do
 		sounds = default.node_sound_leaves_defaults(),
 		selection_box = {
 			type = "fixed",
-			fixed = {-0.5, -0.5, -0.5, 0.5, -5/16, 0.5},
+			fixed = {-6 / 16, -0.5, -6 / 16, 6 / 16, -1 / 16, 6 / 16},
 		},
 	})
 end
@@ -1227,6 +1227,10 @@ minetest.register_node("default:bush_stem", {
 	sunlight_propagates = true,
 	groups = {choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
 	sounds = default.node_sound_wood_defaults(),
+	selection_box = {
+		type = "fixed",
+		fixed = {-7 / 16, -0.5, -7 / 16, 7 / 16, 0.54, 7 / 16},
+	},
 })
 
 minetest.register_node("default:bush_leaves", {
@@ -1250,6 +1254,10 @@ minetest.register_node("default:acacia_bush_stem", {
 	sunlight_propagates = true,
 	groups = {choppy = 2, oddly_breakable_by_hand = 1, flammable = 2},
 	sounds = default.node_sound_wood_defaults(),
+	selection_box = {
+		type = "fixed",
+		fixed = {-7 / 16, -0.5, -7 / 16, 7 / 16, 0.54, 7 / 16},
+	},
 })
 
 minetest.register_node("default:acacia_bush_leaves", {
diff --git a/mods/flowers/init.lua b/mods/flowers/init.lua
index 436021a8..c7cc670e 100644
--- a/mods/flowers/init.lua
+++ b/mods/flowers/init.lua
@@ -57,12 +57,42 @@ local function add_simple_flower(name, desc, box, f_groups)
 end
 
 flowers.datas = {
-	{"rose", "Rose", {-0.15, -0.5, -0.15, 0.15, 0.3, 0.15}, {color_red = 1, flammable = 1}},
-	{"tulip", "Orange Tulip", {-0.15, -0.5, -0.15, 0.15, 0.2, 0.15}, {color_orange = 1, flammable = 1}},
-	{"dandelion_yellow", "Yellow Dandelion", {-0.15, -0.5, -0.15, 0.15, 0.2, 0.15}, {color_yellow = 1, flammable = 1}},
-	{"geranium", "Blue Geranium", {-0.15, -0.5, -0.15, 0.15, 0.2, 0.15}, {color_blue = 1, flammable = 1}},
-	{"viola", "Viola", {-0.5, -0.5, -0.5, 0.5, -0.2, 0.5}, {color_violet = 1, flammable = 1}},
-	{"dandelion_white", "White dandelion", {-0.5, -0.5, -0.5, 0.5, -0.2, 0.5}, {color_white = 1, flammable = 1}}
+	{
+		"rose",
+		"Rose",
+		{-2 / 16, -0.5, -2 / 16, 2 / 16, 5 / 16, 2 / 16},
+		{color_red = 1, flammable = 1}
+	},
+	{
+		"tulip",
+		"Orange Tulip",
+		{-2 / 16, -0.5, -2 / 16, 2 / 16, 3 / 16, 2 / 16},
+		{color_orange = 1, flammable = 1}
+	},
+	{
+		"dandelion_yellow",
+		"Yellow Dandelion",
+		{-2 / 16, -0.5, -2 / 16, 2 / 16, 4 / 16, 2 / 16},
+		{color_yellow = 1, flammable = 1}
+	},
+	{
+		"geranium",
+		"Blue Geranium",
+		{-2 / 16, -0.5, -2 / 16, 2 / 16, 2 / 16, 2 / 16},
+		{color_blue = 1, flammable = 1}
+	},
+	{
+		"viola",
+		"Viola",
+		{-5 / 16, -0.5, -5 / 16, 5 / 16, -1 / 16, 5 / 16},
+		{color_violet = 1, flammable = 1}
+	},
+	{
+		"dandelion_white",
+		"White dandelion",
+		{-5 / 16, -0.5, -5 / 16, 5 / 16, -2 / 16, 5 / 16},
+		{color_white = 1, flammable = 1}
+	},
 }
 
 for _,item in pairs(flowers.datas) do
@@ -141,7 +171,7 @@ minetest.register_node("flowers:mushroom_red", {
 	on_use = minetest.item_eat(-5),
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0, 0.3}
+		fixed = {-4 / 16, -0.5, -4 / 16, 4 / 16, -1 / 16, 4 / 16},
 	}
 })
 
@@ -160,7 +190,7 @@ minetest.register_node("flowers:mushroom_brown", {
 	on_use = minetest.item_eat(1),
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.3, -0.5, -0.3, 0.3, 0, 0.3}
+		fixed = {-3 / 16, -0.5, -3 / 16, 3 / 16, -2 / 16, 3 / 16},
 	}
 })
 
@@ -234,11 +264,11 @@ minetest.register_node("flowers:waterlily", {
 	node_placement_prediction = "",
 	node_box = {
 		type = "fixed",
-		fixed = {-0.5, -0.5, -0.5, 0.5, -0.46875, 0.5}
+		fixed = {-0.5, -0.5, -0.5, 0.5, -15 / 32, 0.5}
 	},
 	selection_box = {
 		type = "fixed",
-		fixed = {-0.5, -0.5, -0.5, 0.5, -0.4375, 0.5}
+		fixed = {-7 / 16, -0.5, -7 / 16, 7 / 16, -15 / 32, 7 / 16}
 	},
 
 	on_place = function(itemstack, placer, pointed_thing)