Overwintering last year was more down to laziness and guilt over killing an otherwise healthy plant than any deliberate action. At the time they were in pots, so I just brought them into the house – can’t do that this time but hoping it will be mild enough that with a fleece they’ll be OK.
Yield wise I did get more off of this year’s plants, but the older ones were still potted at the time so may have been a little stunted. If they survive, I’m interested to see how new, 1 year and 2 year old plants compare.
@Colin – Ha! Good catch 🙂 You’re right, they’re the shelves from one of those plastic greenhouse things 🙂 I dismantled it when I put the beds in, they’re ideal for keeping birds off the lettuce