I would imagine that a really hot compost heap could kill the seeds, but
most heaps never get that hot. So the seeds will probabyl germinate, or at
least some of them will next year.
As for the rosebay, it's able to still create seed even after uprooting the
stuff, and I would say burn it, or bin it, it's best not even given the
chance to spread. Of course if you can get it early enough you can compost
it, but it has to be pretty small in my experience.
Duncan

"Alison" o.uk wrote in
message ...
Hello Again

Looks like you've all been busy out there in this lovely summer (overall).

Baby Rowan arrived 6 weeks pre-term/premature (he wasn't due until this
coming weekend) so we've had a big dose of Intensive Care and
hospitalisation but we're home now and I've been trying to get the garden
back under control.

The gardening question is...
Chopping the top growth off things like Aqualegias and Jacobs Ladder - if
I
bung it all in the compost bin, will the seeds germinate absolutely
everywhere next year when it's worked into the garden? Similarly with
Rose
Bay Willow Herb that is in flower and podding a lil but hasn't yet got the
fluffy stage of seeding (these things seem to have a nasty habit of
'fluffing' in the compost bin so I was wondering if the seeds are viable
then or not?)

TIA
--Alison