Resolves remaining issues with xenohydro PR.

code/modules/hydroponics/spreading/spreading.dm

@@ -114,11 +114,11 @@
 
 	spread_chance = seed.get_trait(TRAIT_POTENCY)
 	spread_distance = ((growth_type>0) ? round(spread_chance*0.6) : round(spread_chance*0.3))
-
-	set_dir(calc_dir())
 	update_icon()
 
-	spawn(1)
+	spawn(1) // Plants will sometimes be spawned in the turf adjacent to the one they need to end up in, for the sake of correct dir/etc being set.
+		set_dir(calc_dir())
+		update_icon()
 		plant_controller.add_plant(src)
 		// Some plants eat through plating.
 		if(!isnull(seed.chems["pacid"]))

code/modules/hydroponics/trays/tray.dm

@@ -530,7 +530,7 @@
 			A.hydrotray_type = src.type
 			del(src)
 	else if(O.force && seed)
-		user.visible_message("<span class='danger'>\The [user] attacks the [seed.display_name] with \the [O]!</span>")
+		user.visible_message("<span class='danger'>\The [seed.display_name] has been attacked by [user] with \the [O]!</span>")
 		if(!dead)
 			health -= O.force
 			check_health()

code/modules/hydroponics/trays/tray_update_icons.dm

@@ -36,8 +36,7 @@
 			if(age >= seed.get_trait(TRAIT_MATURATION))
 				overlay_stage = seed.growth_stages
 			else
-				overlay_stage = max(1,round(seed.get_trait(TRAIT_MATURATION) / seed.growth_stages))
-
+				overlay_stage = max(1,round(age/round(seed.get_trait(TRAIT_MATURATION)/seed.growth_stages)))
 			var/ikey = "[seed.get_trait(TRAIT_PLANT_ICON)]-[overlay_stage]"
 			var/image/plant_overlay = plant_controller.plant_icon_cache["[ikey]-[seed.get_trait(TRAIT_PLANT_COLOUR)]"]
 			if(!plant_overlay)