Does Anyone Know What’s Happening With My Tomato Plant?

You’ll see in the picture that some of my tomato plants are acting rather strangely (no, they won’t be nominated for an Oscar this year…). What’s happening is that they’re getting a flower in the very centre – so stopping any further upward growth.

It’s a new type of tomato for me ‘Costoluto Fiorentino’, so I’m not sure if it’s growing as it should … or if I’ve got a rogue element amongst my plants ... an alien in the midst so to speak?

Any advice you could share would be gratefully received ...