Giant seaweed
Giant seaweed
Release date 7 September 2017 (Update)
Members only? Yes
Quest item? No
Tradeable? Yes
Equipable? No
Stackable? No
High Alch 1 coin
Low Alch 0 coins
Destroy Drop
Store price Not sold
Exchange price 676 coins (info)
Buy limit Unknown
Weight 0.2 kg
Seaweed of large size.
Seaweed detail

Giant seaweed can be harvested from a seaweed patch at level 23 Farming after planting a seaweed spore. Planting gives 19 farming experience and harvesting yields 21 experience for each giant seaweed picked. Between 5-69 giant seaweed can be collected from a single patch.

They can also be obtained by killing Lobstrosities.

When used on a fire, giant seaweed turns into six soda ash, rather than just one given by normal seaweed. When used in conjunction with the Superglass Make spell, you should use 1 giant seaweed per 6 buckets of sand. 18 sand and 3 seaweed yields between 18 and 38 molten glass, with an average return of 1.3 molten glass per bucket of sand.