diff --git a/src/dehacked.c b/src/dehacked.c
index 20e078af7..067cea460 100644
--- a/src/dehacked.c
+++ b/src/dehacked.c
@@ -4709,9 +4709,10 @@ static const char *const STATE_LIST[] = { // array length left dynamic for sanit
 	"S_BUSHTREE",
 	"S_BUSHREDTREE",
 
-	// THZ Plant
-	"S_THZFLOWERA",
-	"S_THZFLOWERB",
+	// THZ flowers
+	"S_THZFLOWERA", // THZ1 Steam flower
+	"S_THZFLOWERB", // THZ1 Spin flower (red)
+	"S_THZFLOWERC", // THZ1 Spin flower (yellow)
 
 	// THZ Alarm
 	"S_ALARM1",
@@ -6169,6 +6170,7 @@ static const char *const MOBJTYPE_LIST[] = {  // array length left dynamic for s
 	// Techno Hill Scenery
 	"MT_THZFLOWER1",
 	"MT_THZFLOWER2",
+	"MT_THZFLOWER3",
 	"MT_ALARM",
 
 	// Deep Sea Scenery
diff --git a/src/info.c b/src/info.c
index c609f34f2..c2eccd421 100644
--- a/src/info.c
+++ b/src/info.c
@@ -190,8 +190,9 @@ char sprnames[NUMSPRITES + 1][5] =
 	"TRE5", // Bush tree
 
 	// Techno Hill Scenery
-	"THZP", // Techno Hill Zone Plant
-	"FWR5", // Another one
+	"THZP", // THZ1 Steam Flower
+	"FWR5", // THZ1 Spin flower (red)
+	"FWR6", // THZ1 Spin flower (yellow)
 	"ALRM", // THZ2 Alarm
 
 	// Deep Sea Scenery
@@ -1892,7 +1893,7 @@ state_t states[NUMSTATES] =
 	{SPR_CFIR, FF_FULLBRIGHT|4, 2, {NULL}, 0, 0, S_DEMONFIRE6}, // S_DEMONFIRE5
 	{SPR_CFIR, FF_FULLBRIGHT|5, 2, {NULL}, 0, 0, S_DEMONFIRE1}, // S_DEMONFIRE6
 
-	// GFZ Flower
+	// GFZ flowers
 	{SPR_FWR1, FF_ANIMATE, -1, {NULL},  7, 3, S_NULL}, // S_GFZFLOWERA
 	{SPR_FWR2, FF_ANIMATE, -1, {NULL}, 19, 3, S_NULL}, // S_GFZFLOWERB
 	{SPR_FWR3, FF_ANIMATE, -1, {NULL}, 11, 4, S_NULL}, // S_GFZFLOWERC
@@ -1912,8 +1913,10 @@ state_t states[NUMSTATES] =
 	{SPR_TRE5, 0, -1, {NULL}, 0, 0, S_NULL}, // S_BUSHTREE
 	{SPR_TRE5, 1, -1, {NULL}, 0, 0, S_NULL}, // S_BUSHREDTREE
 
+	// THZ flowers
 	{SPR_THZP, FF_ANIMATE, -1, {NULL},  7, 4, S_NULL}, // S_THZFLOWERA
 	{SPR_FWR5, FF_ANIMATE, -1, {NULL}, 19, 2, S_NULL}, // S_THZFLOWERB
+	{SPR_FWR6, FF_ANIMATE, -1, {NULL}, 19, 2, S_NULL}, // S_THZFLOWERC
 
 	// THZ Alarm
 	{SPR_ALRM, FF_FULLBRIGHT, 35, {A_Scream}, 0, 0, S_ALARM1}, // S_ALARM1
@@ -8630,8 +8633,35 @@ mobjinfo_t mobjinfo[NUMMOBJTYPES] =
 		S_NULL,         // xdeathstate
 		sfx_None,       // deathsound
 		8,              // speed
-		8*FRACUNIT,     // radius
-		32*FRACUNIT,    // height
+		16*FRACUNIT,    // radius
+		64*FRACUNIT,    // height
+		0,              // display offset
+		16,             // mass
+		0,              // damage
+		sfx_None,       // activesound
+		MF_NOBLOCKMAP|MF_NOCLIP|MF_SCENERY, // flags
+		S_NULL          // raisestate
+	},
+
+	{           // MT_THZFLOWER3
+		903,            // doomednum
+		S_THZFLOWERC,    // spawnstate
+		1000,           // spawnhealth
+		S_NULL,         // seestate
+		sfx_None,       // seesound
+		8,              // reactiontime
+		sfx_None,       // attacksound
+		S_NULL,         // painstate
+		0,              // painchance
+		sfx_None,       // painsound
+		S_NULL,         // meleestate
+		S_NULL,         // missilestate
+		S_NULL,         // deathstate
+		S_NULL,         // xdeathstate
+		sfx_None,       // deathsound
+		8,              // speed
+		16*FRACUNIT,    // radius
+		64*FRACUNIT,    // height
 		0,              // display offset
 		16,             // mass
 		0,              // damage
diff --git a/src/info.h b/src/info.h
index 65c1c72c1..92786e376 100644
--- a/src/info.h
+++ b/src/info.h
@@ -390,8 +390,9 @@ typedef enum sprite
 	SPR_TRE5, // Bush tree
 
 	// Techno Hill Scenery
-	SPR_THZP, // THZ1 Flower
-	SPR_FWR5, // Another flower
+	SPR_THZP, // THZ1 Steam Flower
+	SPR_FWR5, // THZ1 Spin flower (red)
+	SPR_FWR6, // THZ1 Spin flower (yellow)
 	SPR_ALRM, // THZ2 Alarm
 
 	// Deep Sea Scenery
@@ -2020,9 +2021,10 @@ typedef enum state
 	S_BUSHTREE,
 	S_BUSHREDTREE,
 
-	// THZ Plant
-	S_THZFLOWERA,
-	S_THZFLOWERB,
+	// THZ flowers
+	S_THZFLOWERA, // THZ1 Steam flower
+	S_THZFLOWERB, // THZ1 Spin flower (red)
+	S_THZFLOWERC, // THZ1 Spin flower (yellow)
 
 	// THZ Alarm
 	S_ALARM1,
@@ -3500,6 +3502,7 @@ typedef enum mobj_type
 	// Techno Hill Scenery
 	MT_THZFLOWER1,
 	MT_THZFLOWER2,
+	MT_THZFLOWER3,
 	MT_ALARM,
 
 	// Deep Sea Scenery