diff --git a/code/__DEFINES/botany.dm b/code/__DEFINES/botany.dm
index 0614a4fa46d..80872245e2b 100644
--- a/code/__DEFINES/botany.dm
+++ b/code/__DEFINES/botany.dm
@@ -40,3 +40,6 @@
 /// -- Flags for traits. --
 /// Caps the plant's yield at 5 instead of 10.
 #define TRAIT_HALVES_YIELD (1<<0)
+
+/// Define for how much endurance a glowcap loses per spread
+#define GLOWCAP_ENDURANCE_SPREAD_COST 20
diff --git a/code/game/objects/effects/glowshroom.dm b/code/game/objects/effects/glowshroom.dm
index 7eb778128f3..c1e07acc6eb 100644
--- a/code/game/objects/effects/glowshroom.dm
+++ b/code/game/objects/effects/glowshroom.dm
@@ -168,7 +168,7 @@
 			if(shroomCount >= placeCount)
 				continue
 
-			Decay(TRUE, 2) // Decay before spawning new mushrooms to reduce their endurance
+			Decay(TRUE, GLOWCAP_ENDURANCE_SPREAD_COST) // Decay before spawning new mushrooms to reduce their endurance
 			if(QDELETED(src)) //Decay can end us
 				return
 			var/obj/structure/glowshroom/child = new type(newLoc, myseed, TRUE, TRUE)