diff --git a/data/json/monsters/triffid.json b/data/json/monsters/triffid.json
index 46feb4876e260..400d7d707c7b3 100644
--- a/data/json/monsters/triffid.json
+++ b/data/json/monsters/triffid.json
@@ -105,7 +105,7 @@
     "volume": "750 ml",
     "weight": "1 kg",
     "hp": 3,
-    "speed": 50,
+    "speed": 40,
     "material": [ "veggy" ],
     "symbol": "1",
     "color": "light_green",
@@ -155,7 +155,7 @@
     "volume": "62500 ml",
     "weight": "81500 g",
     "hp": 80,
-    "speed": 50,
+    "speed": 70,
     "material": [ "veggy" ],
     "symbol": "F",
     "color": "light_green",
@@ -181,7 +181,7 @@
     "volume": "92500 ml",
     "weight": "120 kg",
     "hp": 280,
-    "speed": 85,
+    "speed": 40,
     "material": [ "veggy" ],
     "symbol": "F",
     "color": "red",
@@ -194,7 +194,7 @@
     "armor_bash": 12,
     "armor_cut": 8,
     "harvest": "triffid_queen",
-    "special_attacks": [ [ "GROWPLANTS", 2 ] ],
+    "special_attacks": [ [ "GROWPLANTS", 20 ] ],
     "death_function": [ "NORMAL" ],
     "flags": [ "HEARS", "SMELLS", "BASHES", "NOHEAD", "PARALYZEVENOM" ]
   },
@@ -208,7 +208,7 @@
     "volume": "92500 ml",
     "weight": "120 kg",
     "hp": 100,
-    "speed": 100,
+    "speed": 80,
     "material": [ "veggy" ],
     "symbol": "V",
     "color": "light_green",
@@ -301,7 +301,7 @@
     "armor_bash": 12,
     "armor_cut": 16,
     "harvest": "triffid_small",
-    "special_attacks": [ [ "TRIFFID_HEARTBEAT", 5 ] ],
+    "special_attacks": [ [ "TRIFFID_HEARTBEAT", 50 ] ],
     "death_function": [ "TRIFFID_HEART" ],
     "flags": [ "NOHEAD", "IMMOBILE", "QUEEN" ]
   }