Picking asparagus

I think you pick them all for 6 week's then leave them to grow.

Great thanks, it's so good to have someone to ask, you can't ask a book!

The traditional day to stop cutting is the longest day, however with the late start this year, I'm going to sneak a week or so beyond that.

Well none to start with, but mine have been in a couple of years and so far I have had between 3 and 5 spears per crown this year.  I got lots during  that warm coupe of days we had, but they are much slower now.  I'm hoping they are just being sensible and staying under the ground in the warm... But I'm a newbie, so I don't really know! 

Well I'm reliably informed that I can continue picking until the end of June, and that the crop improves as the crowns get more established.  I'm hoping for lots more this year and as much as we can eat next year (and thats a lot!)from a raised bed 3.0 by 1.2. With 20 crowns. Must learn how to copy the posting that I am responding to into my reply........
Oh, and the ones that I ordered from the kent asparagus farm are soon much better than the ones in packets from the garden centre but a bit more expensive.