Gielinor's Ledger
Grimy marrentill

Grimy marrentill

It needs cleaning.

MembersBuy limit 13,000Herblore Supplies
Insta-buy

212gp

Insta-sell

202gp

Spread

10gp

4.95%
Margin

+6gp

+2.97% ROI
Volume

—

Trend

—

Price history

1 points · hover for detail

Insta-buy (high)Insta-sell (low)Spread

Volume · units traded

30D low
202
30D high
212
Volatility
4.8%

Flip calculator

Includes the 2% Grand Exchange tax

gp
gp
units
Net profitProfitable

+6gp

+6 per item · +2.97% ROI

Capital required
202 gp
Gross revenue
212 gp
GE tax (2%, 4/item)
− 4 gp
Break-even sell
206 gp

Item data

High alchemy
8 gp96.2% below market
Low alchemy
5 gp
Shop value
14 gp
Weight
0.007 kg
Skill / type
Herblore
Stack / note
Not stackable · noteable
Released
Feb 27, 2002

About Grimy marrentill

The Grimy marrentill is a members-only Herblore supply in Old School RuneScape.

"It needs cleaning"

Over the last 30 days it traded between 208 and 282 gp on the Grand Exchange, averaging 238 gp. About 79,272 units changed hands per day. The price is down 20.9% across that window. The Grand Exchange buy limit is 13,000 every 4 hours. Selling one at the average price costs 4 gp in Grand Exchange tax.

Casting High Level Alchemy returns 8 gp, which is 96.6% below the 30-day average price, so alching a bought one loses money.

How to get Grimy marrentill

280 monsters drop Grimy marrentill, most commonly Marrentill (plant) (Always), Suqah (25/129) and Goutweed (24/128).

Dropped by

MonsterRarityQuantity
Marrentill (plant)Always1
Suqah25/1291
Goutweed24/1281
Herb box24/1281
Aberrant spectre1/8.81–3
Abhorrent spectre1/8.81–3
Elder Chaos druid1/12.51–4
Chaos druid1/14.81–2
Deviant spectre1/14.81–3
Repugnant spectre1/14.81–3
Armoured zombie (Zemouregal's Fort)1/15.21
Flesh Crawler1/15.21
Chaos druid warrior1/15.51–2
Forgotten Soul1/15.51
Armoured zombie (Zemouregal's Base)1/15.91
Experiment No.21/16.31
Black demon1/17.21
Salarin the twisted1/17.51
Bandit1/18.51
Stingray1/191–2

260 further monsters drop it less commonly.

Recipes

Where this item appears in crafting and processing.

Used to make

Grimy marrentill price history

Daily averages rolled up per month, newest first.

Monthly average, low and high price of Grimy marrentill on the Grand Exchange
MonthAverageLowHighVolume
October 202612d2262082361,128,165
September 20262401912822,155,066
August 20261991642492,706,423
July 20261851652662,654,580
June 202621d1721471971,143,263
May 20262d177171182127,096
April 20261d18018018050,507
March 2026162122217827,779
February 202617315520196,158
January 202618714822917,856

Across 10 months of recorded prices Grimy marrentill ranged from 122 gp in March 2026 to 282 gp in September 2026, measured over 218 trading days.

The 30-day average of 238 gp sits in the upper third of that range.

All prices in gp. Volume counts units traded across both sides of the Grand Exchange.