diff --git a/mods/ITEMS/mcl_core/functions.lua b/mods/ITEMS/mcl_core/functions.lua
index 57963ad2..3d755055 100644
--- a/mods/ITEMS/mcl_core/functions.lua
+++ b/mods/ITEMS/mcl_core/functions.lua
@@ -804,8 +804,8 @@ minetest.register_abm({
 	label = "Oak tree growth",
 	nodenames = {"mcl_core:sapling"},
 	neighbors = {"group:soil_sapling"},
-	interval = 20,
-	chance = 1,
+	interval = 25,
+	chance = 2,
 	action = sapling_grow_action("mcl_core:tree", "mcl_core:leaves", 1, 1),
 })
 
@@ -814,8 +814,8 @@ minetest.register_abm({
 	label = "Dark oak tree growth",
 	nodenames = {"mcl_core:darksapling"},
 	neighbors = {"group:soil_sapling"},
-	interval = 20,
-	chance = 1,
+	interval = 25,
+	chance = 2,
 	action = sapling_grow_action("mcl_core:darktree", "mcl_core:darkleaves", 1, 2),
 })
 
@@ -824,8 +824,8 @@ minetest.register_abm({
 	label = "Jungle tree growth",
 	nodenames = {"mcl_core:junglesapling"},
 	neighbors = {"group:soil_sapling"},
-	interval = 20,
-	chance = 1,
+	interval = 25,
+	chance = 2,
 	action = sapling_grow_action("mcl_core:jungletree", "mcl_core:jungleleaves", 5, 1)
 })
 
@@ -834,8 +834,8 @@ minetest.register_abm({
 	label = "Spruce tree growth",
 	nodenames = {"mcl_core:sprucesapling"},
 	neighbors = {"group:soil_sapling"},
-	interval = 20,
-	chance = 1,
+	interval = 25,
+	chance = 2,
 	action = sapling_grow_action("mcl_core:sprucetree", "mcl_core:spruceleaves", 3, 1),
 })
 
@@ -844,8 +844,8 @@ minetest.register_abm({
 	label = "Birch tree growth",
 	nodenames = {"mcl_core:birchsapling"},
 	neighbors = {"group:soil_sapling"},
-	interval = 20,
-	chance = 1,
+	interval = 25,
+	chance = 2,
 	action = sapling_grow_action("mcl_core:birchtree", "mcl_core:birchleaves", 1, 1),
 })
 
@@ -855,7 +855,7 @@ minetest.register_abm({
 	nodenames = {"mcl_core:acaciasapling"},
 	neighbors = {"group:soil_sapling"},
 	interval = 20,
-	chance = 1,
+	chance = 2,
 	action = sapling_grow_action("mcl_core:acaciatree", "mcl_core:acacialeaves", 4, 2),
 })