No - most cultivars have a scent, though not all.

in the wild the red flowers arnt scented on anything as all insects can see red as its not just a danger colour its a colour thats recognised through race breed type even plants .we humans made roses red or smell nice and only animals with colour can see colour .im full of useless information lol.

Thank you both.

P. lactiflora and P. emodi are more fragrant, and both are white flowered - P. emodi is slightly tender though.

your more than welcome mad xx

P rubra which is reddy pink is scented too.

come to think of it the tree paeony in my mums garden was highly scented and it was a shocking pink.