My wife who absolutely loves asparagus, has asked me could we grow some
ourselves (expensive to purchase from shops). I've had a look around and see
that the crowns are quite reasonably priced (Dobbies £1.99 per Crown) so
that's not a problem.
My query is this - how many crowns would be suitable (only the two of us),
and are there any obvious pitfalls that can be avoided by a newcomer to
growing this veg?

Regards
Brian :-)