Yes, they are, Hayley @hayleyaj I bought a plant last year which is now huge and then had a pack of seeds from somewhere which is where this one came from. Weirdly the big plant I bought and this year's plants don't look much alike, certainly in foliage. I must check back through my plant photos on here as I'm sure last years one is in there.
Ah, yes, you're right, Hayley @hayleyaj I've checked back and found the seed packet too - cornflower black ball; whereas last year's plant is labelled Scabious black balls. Just got my black balls muddled up then :)