Thanks for all of the helpful advice on my Brussels sprouts.

I've been keeping them outside during the day for the past week and will
probably keep doing that for another couple of weeks before
transplanting them outdoors. I'll keep an eye on the weather for
covering them on cold, clear nights.

If I'm watching the weather forecasts, what temperature/wind/cloud
conditions would indicate its time to cover them up? These will be in
fairly exposed vegetable patches with only a little protection from wind
from fences. (BTW, it seems there's a market for an email service that
would notify you based on postcode when frost conditions are predicted!
Sorry...too much of a technologist sometimes....)

As for placement, maybe it's time for some experimentation. I think
I'll try putting a couple fairly close to the fence -- good idea about
using the fence to support them. (Hopefully the neighbor boy next door
won't abuse them too horribly....) And I'll put another couple in some
wider spaces where they will be able to grow leaves in all directions.

Rob