diff --git a/mods/ITEMS/mcl_core/functions.lua b/mods/ITEMS/mcl_core/functions.lua
index d8eea101f2..a518bd37df 100644
--- a/mods/ITEMS/mcl_core/functions.lua
+++ b/mods/ITEMS/mcl_core/functions.lua
@@ -345,11 +345,11 @@ function mcl_core.generate_oak_tree(pos)
 			offset = { x = -2, y = -1, z = -2 }
 		else
 			-- Large balloon oak
-			local t = math.random(1, 2)
+			local t = math.random(1, 4)
 			path = minetest.get_modpath("mcl_core") .. "/schematics/mcl_core_oak_large_"..t..".mts"
-			if t == 1 then
+			if t == 1 or t == 3 then
 				offset = { x = -3, y = -1, z = -3 }
-			elseif t == 2 then
+			elseif t == 2 or t == 4 then
 				offset = { x = -4, y = -1, z = -4 }
 			end
 		end
@@ -484,7 +484,7 @@ end
 
 mcl_core.generate_huge_spruce_tree = function(pos)
 	local r1 = math.random(1, 2)
-	local r2 = math.random(1, 3)
+	local r2 = math.random(1, 4)
 	local path
 	local offset = { x = -4, y = -1, z = -5 }
 	if r1 <= 2 then
diff --git a/mods/ITEMS/mcl_core/schematics/mcl_core_oak_large_3.mts b/mods/ITEMS/mcl_core/schematics/mcl_core_oak_large_3.mts
new file mode 100644
index 0000000000..bddcaefd4b
Binary files /dev/null and b/mods/ITEMS/mcl_core/schematics/mcl_core_oak_large_3.mts differ
diff --git a/mods/ITEMS/mcl_core/schematics/mcl_core_oak_large_4.mts b/mods/ITEMS/mcl_core/schematics/mcl_core_oak_large_4.mts
new file mode 100644
index 0000000000..d3f345ffd3
Binary files /dev/null and b/mods/ITEMS/mcl_core/schematics/mcl_core_oak_large_4.mts differ
diff --git a/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_1.mts b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_1.mts
index c7d220deed..d78e2fa673 100644
Binary files a/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_1.mts and b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_1.mts differ
diff --git a/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_2.mts b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_2.mts
index 272354e658..2ffb6c6cee 100644
Binary files a/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_2.mts and b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_2.mts differ
diff --git a/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_3.mts b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_3.mts
index 9204f3c9de..d3b80b1933 100644
Binary files a/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_3.mts and b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_3.mts differ
diff --git a/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_4.mts b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_4.mts
new file mode 100644
index 0000000000..538b96d67b
Binary files /dev/null and b/mods/ITEMS/mcl_core/schematics/mcl_core_spruce_huge_4.mts differ
diff --git a/mods/MAPGEN/mcl_biomes/init.lua b/mods/MAPGEN/mcl_biomes/init.lua
index 48de5335e9..f97cdca989 100644
--- a/mods/MAPGEN/mcl_biomes/init.lua
+++ b/mods/MAPGEN/mcl_biomes/init.lua
@@ -1737,16 +1737,16 @@ local function register_decorations()
 
 	-- Oak
 	-- Large oaks
-	for i=1, 2 do
+	for i=1, 4 do
 		minetest.register_decoration({
 			deco_type = "schematic",
 			place_on = {"group:grass_block_no_snow", "mcl_core:dirt"},
 			sidelen = 80,
 			noise_params = {
-				offset = 0.00075,
+				offset = 0.000545,
 				scale = 0.0011,
 				spread = {x = 250, y = 250, z = 250},
-				seed = 3,
+				seed = 3 + 5 * i,
 				octaves = 3,
 				persist = 0.66
 			},
@@ -1763,7 +1763,7 @@ local function register_decorations()
 			place_on = {"group:grass_block", "mcl_core:dirt", },
 			sidelen = 80,
 			noise_params = {
-				offset = -0.0004,
+				offset = -0.0008,
 				scale = 0.001,
 				spread = {x = 250, y = 250, z = 250},
 				seed = 3,
@@ -2057,9 +2057,10 @@ local function register_decorations()
 	end
 
 	-- Huge spruce
-	quick_spruce(3000, 0.005, "mcl_core_spruce_huge_1.mts", {"MegaSpruceTaiga"})
-	quick_spruce(4000, 0.005, "mcl_core_spruce_huge_2.mts", {"MegaSpruceTaiga"})
-	quick_spruce(6000, 0.005, "mcl_core_spruce_huge_3.mts", {"MegaSpruceTaiga"})
+	quick_spruce(3000, 0.00205, "mcl_core_spruce_huge_1.mts", {"MegaSpruceTaiga"})
+	quick_spruce(4000, 0.00245, "mcl_core_spruce_huge_2.mts", {"MegaSpruceTaiga"})
+	quick_spruce(6000, 0.00245, "mcl_core_spruce_huge_3.mts", {"MegaSpruceTaiga"})
+	quick_spruce(6600, 0.00245, "mcl_core_spruce_huge_4.mts", {"MegaSpruceTaiga"})
 
 	quick_spruce(3000, 0.0008, "mcl_core_spruce_huge_up_1.mts", {"MegaTaiga"})
 	quick_spruce(4000, 0.0008, "mcl_core_spruce_huge_up_2.mts", {"MegaTaiga"})