Globe Artichoke question

[RedRuth]

In spring I started off some Green Globe Artichokes, planted them out and they've done well. However, I need to move them and I can't decide on the best way to do it. Ideas so far:

1. Transplant them to their new spot in November., when they've died back (I'm in Bristol and we rarely get a frost before late November)
2. Transplant them to their new spot in March.
3. Dig them up in November, put them in a large container, leave them in the greenhouse over winter and plant out when they start to grow.

I have no experience with artichokes so any advice is welcome.

[Thelma Sanders]

I'd go for 1 or 3 - I think that by March they will already have started growing, so will suffer more transplant shock.