Where to Farm Gromsblood

The best place to farm Gromsblood is Un'Goro Crater, where Bloodpetal Lasher (level 48-49) drops it at 1.4%. That is the vanilla 1.12 chance, not yet confirmed in Forever. 175 sources are ranked below by drop chance.

Best zones:

The 15 zones with the best source; every source is listed below.

Zone	Sources	Best source	Level	Drop%
Blasted Lands	27	Gromsblood		100.0%
Felwood	41	Gromsblood		100.0%
Unknown zone	8	Treant Spirit	52-53	3.0%
Dire Maul	19	Whip Lasher	54	1.8%
Un'Goro Crater	24	Bloodpetal Lasher	48-49	1.4%
Maraudon	2	Cavern Shambler	46-47+	1.2%
Tanaris	5	Thistleshrub Rootshaper	49-50	1.1%
The Temple of Atal'Hakkar	2	Deep Lurker	47-49+	1.0%
Western Plaguelands	6	Rotting Behemoth	55-56	0.8%
Desolace	10	Ley Hunter	39-40	0.3%
Naxxramas	1	Plague Slime	61+	0.2%
Ruins of Ahn'Qiraj	1	Flesh Hunter	62+	0.0%
Eastern Plaguelands	2	Monstrous Plaguebat	56-58	0.0%
Feralas	4	Gordok Ogre-Mage	52-53+	0.0%
Ashenvale	3	Mannoroc Lasher	29-30	0.0%

All sources, by drop chance:

Vanilla reference — from the 1.12 world data, not yet confirmed in Forever.

Source	Level	Zone	Spawns	Side	How	Drop%	Map
Gromsblood		Blasted Lands	70		Herbalism	100.0%	map
Gromsblood		Felwood	31		Herbalism	100.0%	map
Treant Spirit	52-53		0	Horde only	Drop	3.0%	map
Whip Lasher	54	Dire Maul	126		Drop	1.8%	map
Death Howl(rare)	49	Felwood	1		Drop	1.6%	map
Withered Protector	55-56	Felwood	1		Drop	1.4%	map
Bloodpetal Lasher	48-49	Un'Goro Crater	61		Drop	1.4%	map
Bloodpetal Thresher	49-50	Un'Goro Crater	61		Drop	1.3%	map
Bloodpetal Flayer	51-52	Un'Goro Crater	64		Drop	1.3%	map
Cavern Shambler(elite)	46-47+	Maraudon	3		Drop	1.2%	map
Bloodpetal Trapper	52-53	Un'Goro Crater	52		Drop	1.1%	map
Petrified Guardian(elite)	57-59+	Dire Maul	13		Drop	1.1%	map
Thistleshrub Rootshaper	49-50	Tanaris	13		Drop	1.1%	map
Gnarled Thistleshrub	48-49	Tanaris	9		Drop	1.0%	map
Ironbark Protector(elite)	57-59+	Dire Maul	8		Drop	1.0%	map
Tar Lurker	52-54	Un'Goro Crater	32		Drop	1.0%	map
Deep Lurker(elite)	47-49+	The Temple of Atal'Hakkar	23		Drop	1.0%	map
Irontree Wanderer	52-53	Felwood	3		Drop	1.0%	map
Irontree Stomper	52-53	Felwood	26		Drop	0.9%	map
Tar Beast	50-51	Un'Goro Crater	26		Drop	0.9%	map
Thistleshrub Dew Collector	47-48	Tanaris	15		Drop	0.9%	map
Tar Lord	53-54	Un'Goro Crater	32		Drop	0.9%	map
Warpwood Moss Flayer	52-53	Felwood	30		Drop	0.9%	map
Tar Creeper	51-52	Un'Goro Crater	26		Drop	0.9%	map
Warpwood Crusher(elite)	56+	Dire Maul	13		Drop	0.9%	map
Death Lash(elite)	57-58+	Dire Maul	12		Drop	0.9%	map
Warpwood Shredder	53-54	Felwood	30		Drop	0.9%	map
Warpwood Tangler(elite)	55-56+	Dire Maul	3		Drop	0.9%	map
Rotting Behemoth	55-56	Western Plaguelands	39		Drop	0.8%	map
Fel Lash(elite)	56+	Dire Maul	11		Drop	0.8%	map
Warpwood Treant(elite)	54-55+	Dire Maul	7		Drop	0.8%	map
Phase Lasher(elite)	54-55+	Dire Maul	9		Drop	0.7%	map
Warpwood Guardian(elite)	57-58+	Dire Maul	10		Drop	0.7%	map
Warpwood Stomper(elite)	57-58+	Dire Maul	8		Drop	0.7%	map
Petrified Treant(elite)	57-59+	Dire Maul	15		Drop	0.6%	map
Dessecus(rare)	56+	Felwood	1		Drop	0.5%	map
Kroshius(elite)	55+	Felwood	1		Drop	0.5%	map
Decaying Horror	56-57	Western Plaguelands	26		Drop	0.4%	map
The Husk(rare)	62	Western Plaguelands	1		Drop	0.4%	map
Ley Hunter	39-40	Desolace	8		Drop	0.3%	map
Wildspawn Felsworn(elite)	55-56+	Dire Maul	6		Drop	0.2%	map
Alshirr Banebreath(rare)	54	Felwood	1		Drop	0.2%	map
Lesser Infernal	36-37	Desolace	16		Drop	0.2%	map
Plague Slime(elite)	61+	Naxxramas	6		Drop	0.2%	map
Plague Slime (Blue)(elite)	61+		0		Drop	0.2%	map
Plague Slime (Green)(elite)	61+		0		Drop	0.2%	map
Plague Slime (Red)(elite)	61+		0		Drop	0.2%	map
Lord Azrethoc(elite)	40+	Desolace	1		Drop	0.2%	map
Mage Hunter	38-39	Desolace	8		Drop	0.1%	map
Wildspawn Hellcaller(elite)	56-57+	Dire Maul	6		Drop	0.1%	map
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Needed for:

Quests:

Level	Quest	Needs
54	The Love Potion	4x

Recipes:

Recipe	Profession	Needs
Distilled Firewater	Alchemy	2x
Draught of Detect Demon	Alchemy	2x
Elixir of Brute Force	Alchemy	2x
Elixir of Cunning	Alchemy	2x
Elixir of Ferocity	Alchemy	3x
Elixir of Greater Strength	Alchemy	1x
Elixir of the Grizzly	Alchemy	3x
Elixir of the Whale	Alchemy	1x
Flask of the Titans	Alchemy	30x
Major Troll's Blood Elixir	Alchemy	1x
Mighty Rage Potion	Alchemy	3x
Potion of Beast Slaying	Alchemy	2x
Potion of Demon Slaying	Alchemy	1x
Potion of Venomous Blood	Alchemy	3x

Drop% is the rate recorded in Forever once a source has been looted ten times; a greyed figure is the vanilla 1.12 chance from the world data (vanilla reference — from the 1.12 world data, not yet confirmed in forever). Spawns counts the source's spawn points in the world data. "Side" names which side can kill the NPC when the other finds it friendly. The lead picks the best chance among sources that are not a rare spawn and have at least three spawn points.