Seaweed spore

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"Spores" redirects here. For the spores used to grow mushrooms, see mushroom spore.
Seaweed spore
Seaweed spore 1.png Seaweed spore 2.png Seaweed spore 3.png Seaweed spore 4.png Seaweed spore 5.png
Released7 September 2017 (Update)
MembersYes
Quest itemNo
Properties
TradeableYes
EquipableNo
StackableYes
DestroyDrop
ExamineA seaweed spore - plant in a seaweed patch.
Values
Value20 coins
High alch12 coins
Low alch8 coins
Weight0 kg
Grand Exchange
Exchange468 coins (info)
Buy limit600
Daily volume19,450
Loading...
Advanced data
Item ID21490
Seaweed spore detail.png

Seaweed spores are used in the Farming skill and require level 23 in the skill to grow them. They are planted at the seaweed patch in the underwater area of Fossil Island and provide giant seaweed when harvested. Players can pay Mernia to protect this patch by giving her 200 numulites.

Giant seaweed is often grown by players for Tangleroot due to the relatively high chance of obtaining it compared to the seaweed spore growth time, as well as by ironmen for its use in Crafting.

Sources[edit | edit source]

Seaweed spores can be obtained via the following methods:

  • They may randomly appear when diving in shallow water within the underwater area beneath Fossil Island. 1-3 seaweed spores can spawn, and they will despawn in 30 seconds. Like marks of grace, they appear individually for each player. However, unlike marks of grace, if you log out, they will disappear instantly and they will not be there when you log back in. When they spawn, they release a cloud of bubbles, and all players whose spores spawn on that tick will spawn at the same tile.
    • Spawns of seaweed spores seem to be based around the amount of time a player has been logged in. The moment of spawning always seems to be around a whole-minute amount of time since logging in. This is a similar mechanism to the 5-minute timer used by Farming cycles and random event spawn timers.
  • They can be obtained from ammonite crabs, lobstrosities and Fossil Island Wyverns.
  • They can be purchased from Mairin's Market in exchange for 20 mermaid's tears per spore.
  • They can be pickpocketed from Master Farmers.

Farming info[edit | edit source]

Seaweed
Level required Farming 23
Patch Seaweed
Seeds per 1
Payment 200 Numulite 25.pngNumulites
Growth time 40 min (4x10 min)
Yield 3+ (varies)
Regrow No
Navigation
Seed Seaweed spore 5.pngSeaweed spore
Plant Seaweed
Crop Giant seaweed.pngGiant seaweed
Experience
Planting XP 19 xp
Checking XP No
Harvesting XP 21 xp

Item sources[edit | edit source]

For an exhaustive list of all known sources for this item, see here (include RDT).
SourceLevelQuantityRarity
Ammonite Crab25 Multicombat.png21/128
Ancient Wyvern210 Multicombat.png16–242/132
Lobstrosity68 Multicombat.png56/118
Long-tailed Wyvern152 Multicombat.png122/123
Master Farmer38 Thieving icon.png11/2,200
Spitting Wyvern139 Multicombat.png122/123
Taloned Wyvern147 Multicombat.png122/123

Shop locations[edit | edit source]

This list was created dynamically. For help, see the FAQ. To force an update of this list, click here.
SellerLocationNumber
in stock
Restock
time
Price
sold at
Price
bought at
Members?
Mairin's MarketUnderwater1006sMermaid's tear 5.png 20N/AMember icon.png

Average yield per level[edit | edit source]

Farming Base Compost Super Ultra
23 8.26 11.01 13.76 16.52
30 8.63 11.51 14.38 17.26
40 9.25 12.34 15.42 18.51
50 10.11 13.47 16.84 20.21
60 10.97 14.63 18.29 21.94
70 12.00 16.00 20.00 24.00
80 13.24 17.66 22.07 26.48
90 14.77 19.69 24.62 29.54
99 16.70 22.26 27.83 33.39

Changes[edit | edit source]

Date Changes
16 September 2020
(update | poll)

Seaweed spores were added to Master Farmers' loot table.

21 March 2019
(update)

The item was graphically updated to stand out easier underwater.

31 May 2018
(update)

The cost of seaweed spores in Mairin's Market was lowered from 50 to 20 mermaid's tears.

Gallery (historical)[edit | edit source]

Seaweed spore 1 (v1) detail.png
Seaweed spore 2 (v1) detail.png
Seaweed spore 3 (v1) detail.png
Seaweed spore 4 (v1) detail.png
Seaweed spore (v1) detail.png
Seaweed spore 1 v1.png
Seaweed spore 2 v1.png
Seaweed spore 3 v1.png
Seaweed spore 4 v1.png
Seaweed spore v1.png
7 September 2017 – 21 March 2019
Seaweed spore 1 detail.png
Seaweed spore 2 detail.png
Seaweed spore 3 detail.png
Seaweed spore 4 detail.png
Seaweed spore detail.png
Seaweed spore 1.png
Seaweed spore 2.png
Seaweed spore 3.png
Seaweed spore 4.png
Seaweed spore 5.png
21 March 2019 – present

References[edit | edit source]