As I'm getting lots of hooks and new plants I've been looking back at last season (my first) to plan for the coming one. Growing in winter in Perth has proven easier than I thought it would, especially with the limited plant stock I had coming out of autumn.
In my makeshift greenhouse I just picked a handful of Aji Lemons, and one of the three green Big Jim pods has a tiny bit of red creeping in. These plants have done incredibly well for their tiny pots and compacted soil. All the other plants in the greenhouse look to be doing better than when they were outside in summer. Ones that I cut right back to overwinter them have sprouted out all bushy and are putting out flowers and pods. I don't water them very often because it gets humid in there.
Compare that to outside in the cold... I planted a Dorset Naga last year which never really got off the ground and was posioned with too much fertilizer. I rinsed the roots and planted it in a big pot with much better soil. All the leaves fell off and it sprouted new big fat leaves. Then it really started getting cold at night and although it was outside it didn't die. Then I noticed that the leaves were getting loaded with aphids so I pulled them all off leaving it as a stem. The leaves have grown back again, this time they are not fat but narrow but there are plenty of them. It's in a spot in the yard where it gets very little sun but its still going. A Hungarian Black and Black Prince and Black Pearl have slowed right down but there are flowers still.
I guess that if they have large enough pots the roots don't get too cold. I simply clustered all my pots together in a spot out of the wind as much as possible.
So my conclusions are that in Perth's climate it's mild enough that you can keep on growing all winter with simply plastic stretched over a frame. I'm seriously considering making a big walk-in hoop house for next winter so I can move all my pots in and just keep on going full speed.
edit: I just felt like typing