Rune Factory Wiki
Rune Factory Wiki

Black Grass ((くろ)(くさ), Kuroi Kusa) is an item in the Rune Factory series.


Rune Factory 2: A Fantasy Harvest Moon

Black Grass grows wild on any untilled field during the summer, fall, and winter. It can also be purchased for 30 G at Alvarna Clinic. It shows up under Inquisitive Waltz in Trieste Forest, Messhina Valley, and Palermo Shrine.

RF2Black Grass.png BLACK GRASS Grass
Grass as dark as the night sky. Often gets trampled, as it cannot be seen once the sun goes down. DEFENSE


Tool Recipe Level Material(s)
Forge Cursed Ring 45 Black Grass Poison Powder Spore Plant Stem Sparkle String Root
Pharmacy Formuade 70 Bamboo Shoot Black Grass Large Egg Medium Egg Small Egg White Grass

Rune Factory 3: A Fantasy Harvest Moon

Black Grass
File:RF3Black Grass.png
Category Sell G Buy G
Effect HP Rec RP Rec HP Max RP Max STR VIT INT
3hrs +% +% +% +% + + +


Liked Marjorie Icon.png Marjorie Daria Icon.png Daria
Neutral Shara Icon.png Shara Marian Icon.png Marian Karina Icon.png Karina Pia Icon.png Pia Sofia Icon.png Sofia Sakuya Icon.png Sakuya Carmen Icon.png Carmen Raven Icon.png Raven Wells Icon.png Wells Monica Icon.png Monica Gaius Icon.png Gaius Blaise Icon.png Blaise Rusk Icon.png Rusk Hazel Icon.png Hazel Sherman Icon.png Sherman Evelyn Icon.png Evelyn Shino Icon.png Shino Carlos Icon.png Carlos

Rune Factory 4

Black Grass
RF4Black Grass.png Grass with a dull, mysterious glow like muffled black light. Hard to see at night, so it's often stepped on.
Category Plant Sell 5G Buy 120G
[Effects] HP +50 RP +3 [Upgrade Info] [Difficulty] 23


Tool Recipe Level Material(s)
Crafting Table Silk Hat 17 Black Grass Cloths and Skins
Crafting Table Black Ribbon 18 Black Grass Cloths and Skins Strings
Crafting Table Lolita Headdress 19 Black Grass Cloths and Skins Cloths and Skins Strings


Tool Recipe Level Material(s)
Chemistry Set Roundoff 13 Black Grass Black Grass
Chemistry Set Formula A 29 Withered Grass Blue Grass Black Grass


See Also