diff --git a/baystation12.dme b/baystation12.dme
index 0b0ee50ef9..4bcf9eb187 100644
--- a/baystation12.dme
+++ b/baystation12.dme
@@ -960,6 +960,7 @@
 #include "code\modules\hydroponics\grown.dm"
 #include "code\modules\hydroponics\grown_inedible.dm"
 #include "code\modules\hydroponics\seed.dm"
+#include "code\modules\hydroponics\seed_controller.dm"
 #include "code\modules\hydroponics\seed_datums.dm"
 #include "code\modules\hydroponics\seed_machines.dm"
 #include "code\modules\hydroponics\seed_mobs.dm"
diff --git a/code/controllers/verbs.dm b/code/controllers/verbs.dm
index 263a91769b..3f1a105f53 100644
--- a/code/controllers/verbs.dm
+++ b/code/controllers/verbs.dm
@@ -48,7 +48,7 @@
 	message_admins("Admin [key_name_admin(usr)] has restarted the [controller] controller.")
 	return
 
-/client/proc/debug_controller(controller in list("Master","Failsafe","Ticker","Lighting","Air","Jobs","Sun","Radio","Supply","Shuttles","Emergency Shuttle","Configuration","pAI", "Cameras", "Transfer Controller", "Gas Data","Event"))
+/client/proc/debug_controller(controller in list("Master","Failsafe","Ticker","Lighting","Air","Jobs","Sun","Radio","Supply","Shuttles","Emergency Shuttle","Configuration","pAI", "Cameras", "Transfer Controller", "Gas Data","Event","Plants"))
 	set category = "Debug"
 	set name = "Debug Controller"
 	set desc = "Debug the various periodic loop controllers for the game (be careful!)"
@@ -106,5 +106,8 @@
 		if("Event")
 			debug_variables(event_manager)
 			feedback_add_details("admin_verb", "DEvent")
+		if("Plants")
+			debug_variables(plant_controller)
+			feedback_add_details("admin_verb", "DPlants")
 	message_admins("Admin [key_name_admin(usr)] is debugging the [controller] controller.")
 	return
diff --git a/code/game/machinery/seed_extractor.dm b/code/game/machinery/seed_extractor.dm
index a1132ae08a..4778ac13ea 100644
--- a/code/game/machinery/seed_extractor.dm
+++ b/code/game/machinery/seed_extractor.dm
@@ -16,10 +16,10 @@ obj/machinery/seed_extractor/attackby(var/obj/item/O as obj, var/mob/user as mob
 		var/datum/seed/new_seed_type
 		if(istype(O, /obj/item/weapon/grown))
 			var/obj/item/weapon/grown/F = O
-			new_seed_type = seed_types[F.plantname]
+			new_seed_type = plant_controller.seeds[F.plantname]
 		else
 			var/obj/item/weapon/reagent_containers/food/snacks/grown/F = O
-			new_seed_type = seed_types[F.plantname]
+			new_seed_type = plant_controller.seeds[F.plantname]
 
 		if(new_seed_type)
 			user << "<span class='notice'>You extract some seeds from [O].</span>"
diff --git a/code/game/objects/effects/decals/remains.dm b/code/game/objects/effects/decals/remains.dm
index 8d8328bc9f..dd786ddc0d 100644
--- a/code/game/objects/effects/decals/remains.dm
+++ b/code/game/objects/effects/decals/remains.dm
@@ -17,6 +17,14 @@
 	icon = 'icons/mob/robots.dmi'
 	icon_state = "remainsrobot"
 
+/obj/effect/decal/remains/mouse
+	desc = "They look like the remains of a small rodent."
+	icon_state = "mouse"
+
+/obj/effect/decal/remains/lizard
+	desc = "They look like the remains of a small rodent."
+	icon_state = "lizard"
+
 /obj/effect/decal/remains/attack_hand(mob/user as mob)
 	user << "<span class='notice'>[src] sinks together into a pile of ash.</span>"
 	var/turf/simulated/floor/F = get_turf(src)
diff --git a/code/global.dm b/code/global.dm
index 55c63433cb..c5fd821f79 100644
--- a/code/global.dm
+++ b/code/global.dm
@@ -254,11 +254,5 @@ var/static/list/scarySounds = list(
 // Bomb cap!
 var/max_explosion_range = 14
 
-// Several cache lists for plants/hydroponics.
-var/global/list/seed_types = list()       // A list of all seed data.
-var/global/list/gene_tag_masks = list()   // Gene obfuscation for delicious trial and error goodness.
-var/global/list/plant_icon_cache = list() // Stores images of growth, fruits and seeds.
-
 // Announcer intercom, because too much stuff creates an intercom for one message then hard del()s it.
 var/global/obj/item/device/radio/intercom/global_announcer = new(null)
-
diff --git a/code/modules/admin/admin.dm b/code/modules/admin/admin.dm
index 6030a8be1d..19fd023678 100644
--- a/code/modules/admin/admin.dm
+++ b/code/modules/admin/admin.dm
@@ -1001,10 +1001,10 @@ var/global/floorIsLava = 0
 
 	if(!check_rights(R_SPAWN))	return
 
-	var/seedtype = input("Select a seed type", "Spawn Fruit") as null|anything in seed_types
-	if(!seedtype || !seed_types[seedtype])
+	var/seedtype = input("Select a seed type", "Spawn Fruit") as null|anything in plant_controller.seeds
+	if(!seedtype || !plant_controller.seeds[seedtype])
 		return
-	var/datum/seed/S = seed_types[seedtype]
+	var/datum/seed/S = plant_controller.seeds[seedtype]
 	S.harvest(usr,0,0,1)
 
 /datum/admins/proc/spawn_plant()
@@ -1014,10 +1014,10 @@ var/global/floorIsLava = 0
 
 	if(!check_rights(R_SPAWN))	return
 
-	var/seedtype = input("Select a seed type", "Spawn Plant") as null|anything in seed_types
-	if(!seedtype || !seed_types[seedtype])
+	var/seedtype = input("Select a seed type", "Spawn Plant") as null|anything in plant_controller.seeds
+	if(!seedtype || !plant_controller.seeds[seedtype])
 		return
-	new /obj/effect/plant(get_turf(usr), seed_types[seedtype])
+	new /obj/effect/plant(get_turf(usr), plant_controller.seeds[seedtype])
 
 /datum/admins/proc/spawn_atom(var/object as text)
 	set category = "Debug"
diff --git a/code/modules/hydroponics/grown.dm b/code/modules/hydroponics/grown.dm
index 2b607f0509..ee2c7c66ff 100644
--- a/code/modules/hydroponics/grown.dm
+++ b/code/modules/hydroponics/grown.dm
@@ -24,7 +24,15 @@
 	if(!plantname)
 		return
 
-	seed = seed_types[plantname]
+	if(!plant_controller)
+		sleep(250) // ugly hack, should mean roundstart plants are fine.
+	if(!plant_controller)
+		world << "<span class='danger'>Plant controller does not exist and [src] requires it. Aborting.</span>"
+		del(src)
+		return
+
+	seed = plant_controller.seeds[plantname]
+
 	if(!seed)
 		return
 
diff --git a/code/modules/hydroponics/grown_inedible.dm b/code/modules/hydroponics/grown_inedible.dm
index 991fecc88b..a0802ee0f1 100644
--- a/code/modules/hydroponics/grown_inedible.dm
+++ b/code/modules/hydroponics/grown_inedible.dm
@@ -19,7 +19,7 @@
 	//Handle some post-spawn var stuff.
 	if(planttype)
 		plantname = planttype
-		var/datum/seed/S = seed_types[plantname]
+		var/datum/seed/S = plant_controller.seeds[plantname]
 		if(!S || !S.chems)
 			return
 
diff --git a/code/modules/hydroponics/seed.dm b/code/modules/hydroponics/seed.dm
index ee8c9612be..3b99746ad0 100644
--- a/code/modules/hydroponics/seed.dm
+++ b/code/modules/hydroponics/seed.dm
@@ -1,96 +1,3 @@
-// Sprite lists.
-var/global/list/plant_sprites = list()         // List of all harvested product sprites.
-var/global/list/plant_product_sprites = list() // List of all growth sprites plus number of growth stages.
-
-// Proc for creating a random seed type.
-/proc/create_random_seed(var/survive_on_station)
-	var/datum/seed/seed = new()
-	seed.randomize()
-	seed.uid = seed_types.len + 1
-	seed.name = "[seed.uid]"
-	seed_types[seed.name] = seed
-
-	if(survive_on_station)
-		if(seed.consume_gasses)
-			seed.consume_gasses["phoron"] = null
-			seed.consume_gasses["carbon_dioxide"] = null
-		seed.set_trait(TRAIT_IDEAL_HEAT,293)
-		seed.set_trait(TRAIT_HEAT_TOLERANCE,20)
-		seed.set_trait(TRAIT_IDEAL_LIGHT,8)
-		seed.set_trait(TRAIT_LIGHT_TOLERANCE,5)
-		seed.set_trait(TRAIT_LOWKPA_TOLERANCE,25)
-		seed.set_trait(TRAIT_HIGHKPA_TOLERANCE,200)
-
-	return seed
-
-// Debug for testing seed genes.
-/client/proc/show_plant_genes()
-	set category = "Debug"
-	set name = "Show Plant Genes"
-	set desc = "Prints the round's plant gene masks."
-
-	if(!holder)	return
-
-	if(!gene_tag_masks)
-		usr << "Gene masks not set."
-		return
-
-	for(var/mask in gene_tag_masks)
-		usr << "[mask]: [gene_tag_masks[mask]]"
-
-// Predefined/roundstart varieties use a string key to make it
-// easier to grab the new variety when mutating. Post-roundstart
-// and mutant varieties use their uid converted to a string instead.
-// Looks like shit but it's sort of necessary.
-
-proc/populate_seed_list()
-
-	// Build the icon lists.
-	for(var/icostate in icon_states('icons/obj/hydroponics_growing.dmi'))
-		var/split = findtext(icostate,"-")
-		if(!split)
-			// invalid icon_state
-			continue
-
-		var/ikey = copytext(icostate,(split+1))
-		if(ikey == "dead")
-			// don't count dead icons
-			continue
-		ikey = text2num(ikey)
-		var/base = copytext(icostate,1,split)
-
-		if(!(plant_sprites[base]) || (plant_sprites[base]<ikey))
-			plant_sprites[base] = ikey
-
-	for(var/icostate in icon_states('icons/obj/hydroponics_products.dmi'))
-		plant_product_sprites |= icostate
-
-	// Populate the global seed datum list.
-	for(var/type in typesof(/datum/seed)-/datum/seed)
-		var/datum/seed/S = new type
-		seed_types[S.name] = S
-		S.uid = "[seed_types.len]"
-		S.roundstart = 1
-
-	// Make sure any seed packets that were mapped in are updated
-	// correctly (since the seed datums did not exist a tick ago).
-	for(var/obj/item/seeds/S in world)
-		S.update_seed()
-
-	//Might as well mask the gene types while we're at it.
-	var/list/used_masks = list()
-	var/list/plant_traits = ALL_GENES
-	while(plant_traits && plant_traits.len)
-		var/gene_tag = pick(plant_traits)
-		var/gene_mask = "[num2hex(rand(0,255))]"
-
-		while(gene_mask in used_masks)
-			gene_mask = "[num2hex(rand(0,255))]"
-
-		used_masks += gene_mask
-		plant_traits -= gene_tag
-		gene_tag_masks[gene_tag] = gene_mask
-
 /datum/plantgene
 	var/genetype    // Label used when applying trait.
 	var/list/values // Values to copy into the target seed datum.
@@ -380,8 +287,8 @@ proc/populate_seed_list()
 	seed_noun = pick("spores","nodes","cuttings","seeds")
 
 	set_trait(TRAIT_POTENCY,rand(5,30),200,0)
-	set_trait(TRAIT_PRODUCT_ICON,pick(plant_product_sprites))
-	set_trait(TRAIT_PLANT_ICON,pick(plant_sprites))
+	set_trait(TRAIT_PRODUCT_ICON,pick(plant_controller.plant_product_sprites))
+	set_trait(TRAIT_PLANT_ICON,pick(plant_controller.plant_sprites))
 	set_trait(TRAIT_PLANT_COLOUR,"#[get_random_colour(0,75,190)]")
 	set_trait(TRAIT_PRODUCT_COLOUR,"#[get_random_colour(0,75,190)]")
 	update_growth_stages()
@@ -679,10 +586,10 @@ proc/populate_seed_list()
 		if(istype(user)) user << "You [harvest_sample ? "take a sample" : "harvest"] from the [display_name]."
 
 		//This may be a new line. Update the global if it is.
-		if(name == "new line" || !(name in seed_types))
-			uid = seed_types.len + 1
+		if(name == "new line" || !(name in plant_controller.seeds))
+			uid = plant_controller.seeds.len + 1
 			name = "[uid]"
-			seed_types[name] = src
+			plant_controller.seeds[name] = src
 
 		if(harvest_sample)
 			var/obj/item/seeds/seeds = new(get_turf(user))
@@ -759,6 +666,6 @@ proc/populate_seed_list()
 
 /datum/seed/proc/update_growth_stages()
 	if(get_trait(TRAIT_PLANT_ICON))
-		growth_stages = plant_sprites[get_trait(TRAIT_PLANT_ICON)]
+		growth_stages = plant_controller.plant_sprites[get_trait(TRAIT_PLANT_ICON)]
 	else
 		growth_stages = 0
diff --git a/code/modules/hydroponics/seed_controller.dm b/code/modules/hydroponics/seed_controller.dm
new file mode 100644
index 0000000000..fafaffa5c1
--- /dev/null
+++ b/code/modules/hydroponics/seed_controller.dm
@@ -0,0 +1,131 @@
+//Attempts to offload processing for the spreading plants from the MC.
+// Processes vines/spreading plants.
+
+#define PLANTS_PER_TICK 5
+#define PLANT_TICK_TIME 5
+
+// Debug for testing seed genes.
+/client/proc/show_plant_genes()
+	set category = "Debug"
+	set name = "Show Plant Genes"
+	set desc = "Prints the round's plant gene masks."
+
+	if(!holder)	return
+
+	if(!plant_controller.gene_tag_masks)
+		usr << "Gene masks not set."
+		return
+
+	for(var/mask in plant_controller.gene_tag_masks)
+		usr << "[mask]: [plant_controller.gene_tag_masks[mask]]"
+
+var/global/datum/controller/plants/plant_controller // Set in New().
+
+/datum/controller/plants
+	var/list/plants = list()                // All currently processing plants.
+	var/list/seeds = list()                 // All seed data stored here.
+	var/list/gene_tag_masks = list()        // Gene obfuscation for delicious trial and error goodness.
+	var/list/plant_icon_cache = list()      // Stores images of growth, fruits and seeds.
+	var/list/plant_sprites = list()         // List of all harvested product sprites.
+	var/list/plant_product_sprites = list() // List of all growth sprites plus number of growth stages.
+	var/processing = 0
+
+/datum/controller/plants/New()
+	if(plant_controller && plant_controller != src)
+		log_debug("Rebuilding plant controller.")
+		del(plant_controller)
+	plant_controller = src
+	setup()
+	process()
+
+// Predefined/roundstart varieties use a string key to make it
+// easier to grab the new variety when mutating. Post-roundstart
+// and mutant varieties use their uid converted to a string instead.
+// Looks like shit but it's sort of necessary.
+/datum/controller/plants/proc/setup()
+
+	// Build the icon lists.
+	for(var/icostate in icon_states('icons/obj/hydroponics_growing.dmi'))
+		var/split = findtext(icostate,"-")
+		if(!split)
+			// invalid icon_state
+			continue
+
+		var/ikey = copytext(icostate,(split+1))
+		if(ikey == "dead")
+			// don't count dead icons
+			continue
+		ikey = text2num(ikey)
+		var/base = copytext(icostate,1,split)
+
+		if(!(plant_sprites[base]) || (plant_sprites[base]<ikey))
+			plant_sprites[base] = ikey
+
+	for(var/icostate in icon_states('icons/obj/hydroponics_products.dmi'))
+		plant_product_sprites |= icostate
+
+	// Populate the global seed datum list.
+	for(var/type in typesof(/datum/seed)-/datum/seed)
+		var/datum/seed/S = new type
+		seeds[S.name] = S
+		S.uid = "[seeds.len]"
+		S.roundstart = 1
+
+	// Make sure any seed packets that were mapped in are updated
+	// correctly (since the seed datums did not exist a tick ago).
+	for(var/obj/item/seeds/S in world)
+		S.update_seed()
+
+	//Might as well mask the gene types while we're at it.
+	var/list/used_masks = list()
+	var/list/plant_traits = ALL_GENES
+	while(plant_traits && plant_traits.len)
+		var/gene_tag = pick(plant_traits)
+		var/gene_mask = "[num2hex(rand(0,255))]"
+
+		while(gene_mask in used_masks)
+			gene_mask = "[num2hex(rand(0,255))]"
+
+		used_masks += gene_mask
+		plant_traits -= gene_tag
+		gene_tag_masks[gene_tag] = gene_mask
+
+// Proc for creating a random seed type.
+/datum/controller/plants/proc/create_random_seed(var/survive_on_station)
+	var/datum/seed/seed = new()
+	seed.randomize()
+	seed.uid = plant_controller.seeds.len + 1
+	seed.name = "[seed.uid]"
+	seeds[seed.name] = seed
+
+	if(survive_on_station)
+		if(seed.consume_gasses)
+			seed.consume_gasses["phoron"] = null
+			seed.consume_gasses["carbon_dioxide"] = null
+		seed.set_trait(TRAIT_IDEAL_HEAT,293)
+		seed.set_trait(TRAIT_HEAT_TOLERANCE,20)
+		seed.set_trait(TRAIT_IDEAL_LIGHT,8)
+		seed.set_trait(TRAIT_LIGHT_TOLERANCE,5)
+		seed.set_trait(TRAIT_LOWKPA_TOLERANCE,25)
+		seed.set_trait(TRAIT_HIGHKPA_TOLERANCE,200)
+	return seed
+
+/datum/controller/plants/proc/process()
+	processing = 1
+	spawn(0)
+		set background = 1
+		while(1)
+			if(!processing)
+				sleep(PLANT_TICK_TIME)
+			else
+				var/processed = 0
+				for(var/x=0;x<PLANTS_PER_TICK;x++)
+					if(!plants.len)
+						break
+					sleep(-1)
+					var/obj/effect/plant/plant = pick(plants)
+					plants -= plant
+					plant.process()
+
+/datum/controller/plants/proc/add_plant(var/obj/effect/plant/plant)
+	plants |= plant
\ No newline at end of file
diff --git a/code/modules/hydroponics/seed_machines.dm b/code/modules/hydroponics/seed_machines.dm
index cc269c8a62..cce982372c 100644
--- a/code/modules/hydroponics/seed_machines.dm
+++ b/code/modules/hydroponics/seed_machines.dm
@@ -144,8 +144,8 @@
 	var/list/data = list()
 
 	var/list/geneMasks[0]
-	for(var/gene_tag in gene_tag_masks)
-		geneMasks.Add(list(list("tag" = gene_tag, "mask" = gene_tag_masks[gene_tag])))
+	for(var/gene_tag in plant_controller.gene_tag_masks)
+		geneMasks.Add(list(list("tag" = gene_tag, "mask" = plant_controller.gene_tag_masks[gene_tag])))
 	data["geneMasks"] = geneMasks
 
 	data["activity"] = active
@@ -186,10 +186,10 @@
 		if(!seed) return
 		seed.loc = get_turf(src)
 
-		if(seed.seed.name == "new line" || isnull(seed_types[seed.seed.name]))
-			seed.seed.uid = seed_types.len + 1
+		if(seed.seed.name == "new line" || isnull(plant_controller.seeds[seed.seed.name]))
+			seed.seed.uid = plant_controller.seeds.len + 1
 			seed.seed.name = "[seed.seed.uid]"
-			seed_types[seed.seed.name] = seed.seed
+			plant_controller.seeds[seed.seed.name] = seed.seed
 
 		seed.update_seed()
 		visible_message("\icon[src] [src] beeps and spits out [seed].")
@@ -242,8 +242,8 @@
 		if(!genetics.roundstart)
 			loaded_disk.genesource += " (variety #[genetics.uid])"
 
-		loaded_disk.name += " ([gene_tag_masks[href_list["get_gene"]]], #[genetics.uid])"
-		loaded_disk.desc += " The label reads \'gene [gene_tag_masks[href_list["get_gene"]]], sampled from [genetics.display_name]\'."
+		loaded_disk.name += " ([plant_controller.gene_tag_masks[href_list["get_gene"]]], #[genetics.uid])"
+		loaded_disk.desc += " The label reads \'gene [plant_controller.gene_tag_masks[href_list["get_gene"]]], sampled from [genetics.display_name]\'."
 		eject_disk = 1
 
 		degradation += rand(20,60)
@@ -288,7 +288,7 @@
 
 		for(var/datum/plantgene/P in loaded_disk.genes)
 			if(data["locus"] != "") data["locus"] += ", "
-			data["locus"] += "[gene_tag_masks[P.genetype]]"
+			data["locus"] += "[plant_controller.gene_tag_masks[P.genetype]]"
 
 	else
 		data["disk"] = 0
@@ -318,7 +318,7 @@
 		last_action = world.time
 		active = 1
 
-		if(!isnull(seed_types[seed.seed.name]))
+		if(!isnull(plant_controller.seeds[seed.seed.name]))
 			seed.seed = seed.seed.diverge(1)
 			seed.seed_type = seed.seed.name
 			seed.update_seed()
diff --git a/code/modules/hydroponics/seed_packets.dm b/code/modules/hydroponics/seed_packets.dm
index 5c7ff1cd1f..807e617be9 100644
--- a/code/modules/hydroponics/seed_packets.dm
+++ b/code/modules/hydroponics/seed_packets.dm
@@ -17,8 +17,8 @@ var/global/list/plant_seed_sprites = list()
 
 //Grabs the appropriate seed datum from the global list.
 /obj/item/seeds/proc/update_seed()
-	if(!seed && seed_type && !isnull(seed_types) && seed_types[seed_type])
-		seed = seed_types[seed_type]
+	if(!seed && seed_type && !isnull(plant_controller.seeds) && plant_controller.seeds[seed_type])
+		seed = plant_controller.seeds[seed_type]
 	update_appearance()
 
 //Updates strings and icon appropriately based on seed datum.
@@ -74,7 +74,7 @@ var/global/list/plant_seed_sprites = list()
 	seed_type = null
 
 /obj/item/seeds/random/New()
-	seed = create_random_seed()
+	seed = plant_controller.create_random_seed()
 	seed_type = seed.name
 	update_seed()
 
diff --git a/code/modules/hydroponics/spreading/spreading.dm b/code/modules/hydroponics/spreading/spreading.dm
index 99b8ea8c7d..e4abe89ffb 100644
--- a/code/modules/hydroponics/spreading/spreading.dm
+++ b/code/modules/hydroponics/spreading/spreading.dm
@@ -13,7 +13,7 @@
 
 		if(turfs.len) //Pick a turf to spawn at if we can
 			var/turf/simulated/floor/T = pick(turfs)
-			var/datum/seed/seed = create_random_seed(1)
+			var/datum/seed/seed = plant_controller.create_random_seed(1)
 			seed.set_trait(TRAIT_SPREAD,2)            // So it will function properly as vines.
 			seed.set_trait(TRAIT_POTENCY,rand(40,50)) // Guarantee a wide spread and powerful effects.
 			new /obj/effect/plant(T,seed)
@@ -25,10 +25,13 @@
 	density = 0
 	color = DEAD_PLANT_COLOUR
 
+/obj/effect/dead_plant/attack_hand()
+	del(src)
+
 /obj/effect/dead_plant/attackby()
 	..()
 	for(var/obj/effect/plant/neighbor in view(1,src))
-		neighbor.hibernating = 0
+		plant_controller.add_plant(neighbor)
 	del(src)
 
 /obj/effect/plant
@@ -55,7 +58,7 @@
 	var/spread_into_adjacent = 60
 	var/evolve_chance = 2
 	var/last_tick = 0
-	var/hibernating = 0
+	var/obj/machinery/portable_atmospherics/hydroponics/soil/invisible/plant
 
 /obj/effect/plant/single
 	spread_chance = 0
@@ -63,7 +66,7 @@
 /obj/effect/plant/New(var/newloc, var/datum/seed/newseed)
 	..()
 	if(!istype(newseed))
-		newseed = seed_types[DEFAULT_SEED]
+		newseed = plant_controller.seeds[DEFAULT_SEED]
 	seed = newseed
 	if(!seed)
 		del(src)
@@ -96,7 +99,7 @@
 
 	set_dir(calc_dir())
 	update_icon()
-	processing_objects |= src
+	plant_controller.add_plant(src)
 	last_tick = world.timeofday
 
 /obj/effect/plant/update_icon()
@@ -148,7 +151,6 @@
 /obj/effect/plant/Del()
 	if(children && children.len)
 		die_off(null,1)
-	processing_objects -= src
 	..()
 
 /obj/effect/plant/proc/get_dist_to_parent(var/current_count)
diff --git a/code/modules/hydroponics/spreading/spreading_growth.dm b/code/modules/hydroponics/spreading/spreading_growth.dm
index 6d0957e650..dedcec0c14 100644
--- a/code/modules/hydroponics/spreading/spreading_growth.dm
+++ b/code/modules/hydroponics/spreading/spreading_growth.dm
@@ -14,37 +14,47 @@
 			health = max_health
 	refresh_icon()
 
-	// Damaged, young hibernating or too far from parent, no chance of spreading.
-	if(is_mature() || hibernating || (parent && (get_dist_to_parent(0) > spread_distance)))
-		return
+	if(buckled_mob)
+		seed.do_sting(buckled_mob,src)
+		if(seed.get_trait(TRAIT_CARNIVOROUS))
+			// Todo: refactor to be less hardcoded.
+			if(istype(buckled_mob, /mob/living/simple_animal/mouse))
+				new /obj/effect/decal/remains/mouse(get_turf(src))
+				del(buckled_mob)
+				buckled_mob = null
+				return
+			else if(istype(buckled_mob, /mob/living/simple_animal/lizard))
+				new /obj/effect/decal/remains/lizard(get_turf(src))
+				del(buckled_mob)
+				buckled_mob = null
+				return
+			seed.do_thorns(buckled_mob,src)
 
+	var/failed_growth
 	// Count our neighbors and possible locations for spreading.
 	var/list/possible_locs = list()
-	var/count = 0
+	var/plant_count = 0
 	for(var/turf/simulated/floor/floor in view(1,src))
 		if((locate(/obj/effect/dead_plant) in floor.contents) || !floor.Enter(src) || floor.density)
 			continue
 		if(locate(/obj/effect/plant) in floor.contents)
-			count++
+			plant_count++
 			continue
 		possible_locs |= floor
 
-	//Entirely surrounded, try to spawn an actual plant.
-	if(count>=8)
-		if(!(locate(/obj/machinery/portable_atmospherics/hydroponics/soil/invisible) in T.contents))
-			var/obj/machinery/portable_atmospherics/hydroponics/soil/invisible/new_plant = new(T,seed)
-			new_plant.age = seed.get_trait(TRAIT_MATURATION)-1
-			new_plant.update_icon()
-			if(growth_type==0) //Vines do not become invisible.
-				invisibility = INVISIBILITY_MAXIMUM
-			else
-				new_plant.layer = 4.1
+	if(health == max_health && plant_count >= 4 && !plant)
+		plant = new(T,seed)
+		plant.age = seed.get_trait(TRAIT_MATURATION)-1
+		plant.update_icon()
+		if(growth_type==0) //Vines do not become invisible.
+			invisibility = INVISIBILITY_MAXIMUM
+		else
+			plant.layer = layer + 0.1
 
 	if(prob(spread_chance))
 		for(var/i=1,i<=seed.get_trait(TRAIT_YIELD),i++)
 			if(!possible_locs.len)
-				hibernating = 1
-				world << "[src] at [x],[y] is hibernating"
+				failed_growth = 1
 				break
 			if(prob(spread_into_adjacent))
 				var/turf/target_turf = pick(possible_locs)
@@ -53,11 +63,14 @@
 				child.parent = get_root()
 				child.parent.children |= child
 
+	if(health != max_health || !failed_growth || (plant_count > 4 && !plant))
+		plant_controller.add_plant(src)
+
 /obj/effect/plant/proc/die_off(var/no_remains, var/no_del)
 	// Remove ourselves from our parent.
 	if(parent && parent.children)
 		parent.children -= src
-	// Kill off any of our children (and add an added bonus, other plants in this area)
+	// Kill off any of our children (and as an added bonus, other plants in this area)
 	for(var/obj/machinery/portable_atmospherics/hydroponics/soil/invisible/plant in get_turf(src))
 		plant.dead = 1
 		plant.update_icon()
@@ -66,7 +79,8 @@
 		for(var/obj/effect/plant/child in children)
 			child.die_off()
 	for(var/obj/effect/plant/neighbor in view(1,src))
-		neighbor.hibernating = 0
+		plant_controller.add_plant(neighbor)
+
 	if(!no_remains && !(locate(/obj/effect/dead_plant) in get_turf(src)))
 		var/obj/effect/dead_plant/plant_remains = new(get_turf(src))
 		plant_remains.icon = src.icon
diff --git a/code/modules/hydroponics/spreading/spreading_response.dm b/code/modules/hydroponics/spreading/spreading_response.dm
index 1d30c0bbf2..cb696f34af 100644
--- a/code/modules/hydroponics/spreading/spreading_response.dm
+++ b/code/modules/hydroponics/spreading/spreading_response.dm
@@ -1,7 +1,6 @@
 /obj/effect/plant/HasProximity(var/atom/movable/AM)
 
-	hibernating = 0
-
+	plant_controller.add_plant(src)
 	if(!is_mature() || seed.get_trait(TRAIT_SPREAD) != 2)
 		return
 
@@ -9,16 +8,15 @@
 	if(!istype(M))
 		return
 
-	if(!buckled_mob && !M.buckled && !M.anchored && prob(round(seed.get_trait(TRAIT_POTENCY)/2)))
+	if(!buckled_mob && !M.buckled && !M.anchored && (M.small || prob(round(seed.get_trait(TRAIT_POTENCY)/2))))
 		entangle(M)
 
 /obj/effect/plant/attack_hand(mob/user as mob)
-	hibernating = 0
+	plant_controller.add_plant(src)
 	manual_unbuckle(user)
 
 /obj/effect/plant/proc/trodden_on(var/mob/living/victim)
-	hibernating = 0
-	world << "Blah."
+	plant_controller.add_plant(src)
 	if(!is_mature())
 		return
 	var/mob/living/carbon/human/H = victim
diff --git a/code/modules/hydroponics/trays/tray.dm b/code/modules/hydroponics/trays/tray.dm
index 9ec31f6fe8..acb501b850 100644
--- a/code/modules/hydroponics/trays/tray.dm
+++ b/code/modules/hydroponics/trays/tray.dm
@@ -299,7 +299,7 @@
 
 	//Remove the seed if something is already planted.
 	if(seed) seed = null
-	seed = seed_types[pick(list("reishi","nettles","amanita","mushrooms","plumphelmet","towercap","harebells","weeds"))]
+	seed = plant_controller.seeds[pick(list("reishi","nettles","amanita","mushrooms","plumphelmet","towercap","harebells","weeds"))]
 	if(!seed) return //Weed does not exist, someone fucked up.
 
 	dead = 0
@@ -329,7 +329,7 @@
 	// We need to make sure we're not modifying one of the global seed datums.
 	// If it's not in the global list, then no products of the line have been
 	// harvested yet and it's safe to assume it's restricted to this tray.
-	if(!isnull(seed_types[seed.name]))
+	if(!isnull(plant_controller.seeds[seed.name]))
 		seed = seed.diverge()
 	seed.mutate(severity,get_turf(src))
 
@@ -370,8 +370,8 @@
 
 	var/previous_plant = seed.display_name
 	var/newseed = seed.get_mutant_variant()
-	if(newseed in seed_types)
-		seed = seed_types[newseed]
+	if(newseed in plant_controller.seeds)
+		seed = plant_controller.seeds[newseed]
 	else
 		return
 
@@ -528,12 +528,10 @@
 	return
 
 /obj/machinery/portable_atmospherics/hydroponics/attack_tk(mob/user as mob)
-
-	if(harvest)
-		harvest(user)
-
-	else if(dead)
+	if(dead)
 		remove_dead(user)
+	else if(harvest)
+		harvest(user)
 
 /obj/machinery/portable_atmospherics/hydroponics/attack_hand(mob/user as mob)
 
diff --git a/code/modules/hydroponics/trays/tray_tools.dm b/code/modules/hydroponics/trays/tray_tools.dm
index 404abb707c..cd7d0daf9a 100644
--- a/code/modules/hydroponics/trays/tray_tools.dm
+++ b/code/modules/hydroponics/trays/tray_tools.dm
@@ -53,13 +53,13 @@
 	else if(istype(target,/obj/item/weapon/reagent_containers/food/snacks/grown))
 
 		var/obj/item/weapon/reagent_containers/food/snacks/grown/G = target
-		grown_seed = seed_types[G.plantname]
+		grown_seed = plant_controller.seeds[G.plantname]
 		grown_reagents = G.reagents
 
 	else if(istype(target,/obj/item/weapon/grown))
 
 		var/obj/item/weapon/grown/G = target
-		grown_seed = seed_types[G.plantname]
+		grown_seed = plant_controller.seeds[G.plantname]
 		grown_reagents = G.reagents
 
 	else if(istype(target,/obj/item/seeds))
diff --git a/code/modules/hydroponics/trays/tray_update_icons.dm b/code/modules/hydroponics/trays/tray_update_icons.dm
index de66f4297e..e13bf644f0 100644
--- a/code/modules/hydroponics/trays/tray_update_icons.dm
+++ b/code/modules/hydroponics/trays/tray_update_icons.dm
@@ -21,7 +21,7 @@
 
 		if(dead)
 			var/ikey = "[seed.get_trait(TRAIT_PLANT_ICON)]-dead"
-			var/image/dead_overlay = plant_icon_cache["[ikey]"]
+			var/image/dead_overlay = plant_controller.plant_icon_cache["[ikey]"]
 			if(!dead_overlay)
 				dead_overlay = image('icons/obj/hydroponics_growing.dmi', "[ikey]")
 				dead_overlay.color = DEAD_PLANT_COLOUR
@@ -39,20 +39,20 @@
 				overlay_stage = max(1,round(seed.get_trait(TRAIT_MATURATION) / seed.growth_stages))
 
 			var/ikey = "[seed.get_trait(TRAIT_PLANT_ICON)]-[overlay_stage]"
-			var/image/plant_overlay = plant_icon_cache["[ikey]-[seed.get_trait(TRAIT_PLANT_COLOUR)]"]
+			var/image/plant_overlay = plant_controller.plant_icon_cache["[ikey]-[seed.get_trait(TRAIT_PLANT_COLOUR)]"]
 			if(!plant_overlay)
 				plant_overlay = image('icons/obj/hydroponics_growing.dmi', "[ikey]")
 				plant_overlay.color = seed.get_trait(TRAIT_PLANT_COLOUR)
-				plant_icon_cache["[ikey]-[seed.get_trait(TRAIT_PLANT_COLOUR)]"] = plant_overlay
+				plant_controller.plant_icon_cache["[ikey]-[seed.get_trait(TRAIT_PLANT_COLOUR)]"] = plant_overlay
 			overlays |= plant_overlay
 
 			if(harvest && overlay_stage == seed.growth_stages)
 				ikey = "[seed.get_trait(TRAIT_PRODUCT_ICON)]"
-				var/image/harvest_overlay = plant_icon_cache["product-[ikey]-[seed.get_trait(TRAIT_PLANT_COLOUR)]"]
+				var/image/harvest_overlay = plant_controller.plant_icon_cache["product-[ikey]-[seed.get_trait(TRAIT_PLANT_COLOUR)]"]
 				if(!harvest_overlay)
 					harvest_overlay = image('icons/obj/hydroponics_products.dmi', "[ikey]")
 					harvest_overlay.color = seed.get_trait(TRAIT_PRODUCT_COLOUR)
-					plant_icon_cache["product-[ikey]-[seed.get_trait(TRAIT_PRODUCT_COLOUR)]"] = harvest_overlay
+					plant_controller.plant_icon_cache["product-[ikey]-[seed.get_trait(TRAIT_PRODUCT_COLOUR)]"] = harvest_overlay
 				overlays |= harvest_overlay
 
 	//Draw the cover.
diff --git a/code/modules/organs/organ_alien.dm b/code/modules/organs/organ_alien.dm
index 0024865acf..4a36d23659 100644
--- a/code/modules/organs/organ_alien.dm
+++ b/code/modules/organs/organ_alien.dm
@@ -48,7 +48,7 @@
 		H.death()
 
 	//This is a terrible hack and I should be ashamed.
-	var/datum/seed/diona = seed_types["diona"]
+	var/datum/seed/diona = plant_controller.seeds["diona"]
 	if(!diona)
 		del(src)
 
diff --git a/code/world.dm b/code/world.dm
index 3897c24729..2fd24cf9f5 100644
--- a/code/world.dm
+++ b/code/world.dm
@@ -55,7 +55,7 @@ var/global/datum/global_init/init = new ()
 	// Set up roundstart seed list. This is here because vendors were
 	// bugging out and not populating with the correct packet names
 	// due to this list not being instantiated.
-	populate_seed_list()
+	plant_controller = new()
 
 	// Create autolathe recipes, as above.
 	populate_lathe_recipes()
diff --git a/icons/effects/blood.dmi b/icons/effects/blood.dmi
index 9820bb1f8a..8b70722fd9 100644
Binary files a/icons/effects/blood.dmi and b/icons/effects/blood.dmi differ