bracken

It has since fallen or been cut down and now lies among the bracken.

Gorse, heather, bracken and trees were removed to reveal the white boulders.

He's been a zoologist "since I could walk" and his first words were trees, bracken and gorse.

Standing in the Simonside hills area of the Rothbury estate in Northumberland, there is bracken underfoot and open countryside as far as the eye can see.

Alternatively, you can use wool bracken and also coconut coir, but it has a few question marks against it because it's a waste material from coconut plantations, grown mostly in India and Sri Lanka.