It is only the female flowers that are relevant for THC. And the THC has no smell.
Everything else of the plant is further used for other things and could, in my opinion, smell like weed.
So, when I see it this way, hemp-like fabrics could be present in the stuffed animals or the mattress. There are even infant starter sets like fleece pads, diapers, etc., that are partly made of hemp. The curtain could also be made of hemp. Whether it then smells like weed when, for example, damp, I don’t know.
Also, the plants in the pots in front of the window could smell hemp-like if you touch them or the wind blows in a certain way. For that, I said to try rubbing the leaves between your fingers.
The resinous trees, i.e. the resin, could also emit a similar smell.
I think the answers here should reassure you regarding the smell.
And if you google: the internet is full of things made from hemp and people who smell similar things without consuming weed
Do you mean the plants inside or outside? The plants in the room are artificial
Luckily there is still little furnishing in the room. I would completely(!) empty the room. Curtains, carpets, furniture… everything out.