Compost or Not

Can I Compost Seaweed?

Yes

Seaweed can be composted.

What to Know

  • Seaweed is an excellent addition to compost, rich in minerals and trace elements
  • It breaks down quickly and adds valuable nutrients to your soil
  • Rinse off excess salt if the seaweed is from saltwater

Tips

  • Chop or shred seaweed into smaller pieces to speed up decomposition
  • Mix with other compost materials to maintain a good balance
  • If using a lot of seaweed, monitor your compost's moisture levels as it can add significant wetness