To ask what can possibly go with this?

[HopelessLayout]

Looking for an area rug to complement a William Morris feature wall. I don't want a plain colour if possible… but what on earth would go with this?
It's the seaweed pattern, incidentally.

What colour are the other walls? What is the furniture like?

It's beautiful paper

The walls and furniture are very rustic. It's a log home. Similar colour to this.

That is beautiful wallpaper. You need a plain rug.

Something with a subtle pattern in shades of green or possibly blue.

Stripes
Collage
Geometric

ducks I was hoping for a complementary pattern, if such a thing exists!

You can get the same pattern here

bridget the collage one has possibilities—thank you.

sorry I saw that but thought it would be a bit too much! thank you for the suggestion though.

www.irugs.co.uk/yellow-8x10-carrington-area-rug-33143425?gclid=EAIaIQobChMIy6uBhNSV6QIVA-ztCh2uHQDoEAQYAiABEgLW4_D_BwE

My personal choice

www.google.com/shopping/product/1?q=natural+rug&client=ms-android-google&bih=604&biw=412&hl=en-US&tbs=cat:598,vw:g,init_ar:SgVKAwjWBEoHsgQECOy8IA%3D%3D,ss:44&prmd=sinv&prds=num:1,of:1,epd:7594409751946135665,paur:ClkAsKraX-lwdgBT4cR-qxlIkckYf35HR5k-c0Pn7MHJxEgD2hMmfLIJoU7D3tN5kZuzheX1OZzpmKlgOmjleNNUBvoN8kBGs7Yy6ADfb6vPdVQZJiwDTTrILxIZAFPVH738sf0UoFg1pVNiC6PEUTnyT63EJA,prmr:1,pid:7594409751946135665,cs:1

I would go pale delicate blue I think.

Thanks all for the suggestions!