rocket = spuds

Rocket does flower see the database
http://varieties.potato.org.uk/display_description.php?variety_name=Rocket

but new potatoes are usually dug before the plants flower anyway for new potato taste.

As Rocket is very early you could have a furtle in the soil to see if there's any there worth taking
at the end of this month  if there's nothing just recover the roots and let them carry on growing